Understanding the Multi-scale Universe
Lead Research Organisation:
University of Surrey
Department Name: Physics
Abstract
In this STFC consolidated grant proposal, we present seven projects that address the following STFC roadmap key science questions:
A:4. When were the first stars, black holes and galaxies born? [P1,3,4]
A:5. How do galaxies evolve? [P6,7]
A:6. How are stars born and how do they evolve? [P3,4]
C:4. What is the nature of dark matter? [P2,5]
D:2. How can high energy particles and gravitational waves tell us about the extreme universe? [P1]
In P1, we study the coalescence of supermassive black holes in galactic centres. These are an important source of low frequency gravitational waves that are so energetic that they can be seen right back to the beginning of the Universe. We will calculate the expected frequency of such mergers, making predictions for the currently-running Pulsar Timing Array (PTA) and the planned LISA satellite. This "background" signal must be carefully understood in order for the the PTA to detect gravitational waves.
In P2 and P5, we probe the nature of dark matter. Dark matter is an invisible substance that appears to make up most of the mass of the Universe, yet it remains mysterious. In P2, we exploit a new technique for measuring the distribution of dark matter at the centres of tiny "dwarf" galaxies. We will use these new measurements to tightly constrain "Self-Interacting" and "Wave-like" dark matter models, and hunt for evidence of "dark matter heating". In P5, we study the effect of tiny clumps of dark matter on stellar streams that orbit the Milky Way. These streams form as globular star clusters are torn apart by gravitational tidal forces. By measuring the impact of tiny clumps of dark matter on these streams, we can measure the "granularity" of our Milky Way's dark matter halo. This allows us to directly measure the "temperature" of dark matter.
In P3, we study the origin of the abundance anomalies in globular clusters (GCs). Long thought to be simple, we now know that GCs show evidence of multiple populations of stars with peculiar chemical enrichment. We will test a new model whereby this peculiar chemistry is generated by the formation of a super-massive star (SMS) via stellar collisions. This new model has the potential to explain all of the puzzling data. We will also make predictions for upcoming surveys. This new formation model for SMSs may also shed light on the formation of supermassive black hole seeds in the early Universe.
In P4, we build the first stellar population models of the most massive stars, including their binary interactions. Current models used throughout the astronomy community become very inaccurate above ~100 solar masses. This project will dramatically improve stellar population models up to 1000 solar mass stars. This will provide new and improved energy and chemical yields, important for understanding both star and galaxy formation, and new estimates of the formation rates of black hole binaries. We will make these models publicly available to the community.
In P6, we will measure the chemical abundances of >4,200 red giant branch stars in the nearby Andromeda galaxy, for the first time. This exciting new data set - that we will make available to the community - will allow us to pin down the past history of Andromeda. This will provide a valuable counterpart to similarly detailed studies of our own Galaxy that are ongoing.
Finally, in P7 we will use new data from the SMASH, MAGIC and Gaia surveys to build a comprehensive map of two of our nearest satellite companions: the Large and Small Magellanic Clouds. This map - that we will make publicly available - will allow us to determine the masses and interaction history of the Clouds; to probe how star formation proceeds in the extreme environment of a galactic merger; and to study the elusive hot gaseous corona of the Milky Way.
A:4. When were the first stars, black holes and galaxies born? [P1,3,4]
A:5. How do galaxies evolve? [P6,7]
A:6. How are stars born and how do they evolve? [P3,4]
C:4. What is the nature of dark matter? [P2,5]
D:2. How can high energy particles and gravitational waves tell us about the extreme universe? [P1]
In P1, we study the coalescence of supermassive black holes in galactic centres. These are an important source of low frequency gravitational waves that are so energetic that they can be seen right back to the beginning of the Universe. We will calculate the expected frequency of such mergers, making predictions for the currently-running Pulsar Timing Array (PTA) and the planned LISA satellite. This "background" signal must be carefully understood in order for the the PTA to detect gravitational waves.
In P2 and P5, we probe the nature of dark matter. Dark matter is an invisible substance that appears to make up most of the mass of the Universe, yet it remains mysterious. In P2, we exploit a new technique for measuring the distribution of dark matter at the centres of tiny "dwarf" galaxies. We will use these new measurements to tightly constrain "Self-Interacting" and "Wave-like" dark matter models, and hunt for evidence of "dark matter heating". In P5, we study the effect of tiny clumps of dark matter on stellar streams that orbit the Milky Way. These streams form as globular star clusters are torn apart by gravitational tidal forces. By measuring the impact of tiny clumps of dark matter on these streams, we can measure the "granularity" of our Milky Way's dark matter halo. This allows us to directly measure the "temperature" of dark matter.
In P3, we study the origin of the abundance anomalies in globular clusters (GCs). Long thought to be simple, we now know that GCs show evidence of multiple populations of stars with peculiar chemical enrichment. We will test a new model whereby this peculiar chemistry is generated by the formation of a super-massive star (SMS) via stellar collisions. This new model has the potential to explain all of the puzzling data. We will also make predictions for upcoming surveys. This new formation model for SMSs may also shed light on the formation of supermassive black hole seeds in the early Universe.
In P4, we build the first stellar population models of the most massive stars, including their binary interactions. Current models used throughout the astronomy community become very inaccurate above ~100 solar masses. This project will dramatically improve stellar population models up to 1000 solar mass stars. This will provide new and improved energy and chemical yields, important for understanding both star and galaxy formation, and new estimates of the formation rates of black hole binaries. We will make these models publicly available to the community.
In P6, we will measure the chemical abundances of >4,200 red giant branch stars in the nearby Andromeda galaxy, for the first time. This exciting new data set - that we will make available to the community - will allow us to pin down the past history of Andromeda. This will provide a valuable counterpart to similarly detailed studies of our own Galaxy that are ongoing.
Finally, in P7 we will use new data from the SMASH, MAGIC and Gaia surveys to build a comprehensive map of two of our nearest satellite companions: the Large and Small Magellanic Clouds. This map - that we will make publicly available - will allow us to determine the masses and interaction history of the Clouds; to probe how star formation proceeds in the extreme environment of a galactic merger; and to study the elusive hot gaseous corona of the Milky Way.
Planned Impact
Our STFC consolidated grant will be of great benefit to fellow academics (see Academic Beneficiaries). In addition, we will deliver economic impact, social impact and knowledge transfer as follows:
1. Economic impact
- We will work with our research & enterprise support team (RES) to explore opportunities for commercially exploiting new software algorithms and advances generated over the lifetime of the grant.
- We will ensure that our PhD students and postdocs have the necessary skills, experience and contacts to move out of astrophysics if they wish to do so, providing a talent-stream for British industry. To achieve this, we will deliver relevant training through through RES and GRADnet.
- We will organise an interdisciplinary workshop with our South East Physics Network (SEPnet) partners and RES on "Model Fitting". We will determine if methods developed in-house to cope with massive astronomical data sets like Gaia can find application in chemistry, engineering and/or financial modelling. Similarly, we hope to learn from modellers in these disciplines.
2. Social impact
We will ensure that all scientific work output from our STFC consolidated grant is made freely available to be used by interested industry partners, schools and colleges, and/or the interested public. We will achieve this by:
- Publishing all of our work in high ranking, peer-reviewed, journals; on the open access arXiv e-Print server; and on our Surrey Research Insight open access repository.
- Presenting our work at national and international conferences and workshops, writing press releases where appropriate.
- Making publicly available all of our software and, where possible, our simulation data products.
- Setting up a dedicated website for public engagement where we will make high resolution images and movies of our simulations publicly available.
- Promoting science results produced on this grant at our monthly public engagement events.
- Working with the physics department's outreach officer - Dr. Heather Campbell - to participate in major outreach initiatives across the country like the Royal Society Summer Science Exhibition and the Big Bang Fair.
- Working with Dr. Campbell to set up an "Astronomy Masterclass" - Simulating the Universe - aimed at first and second year sixth form students. This will (i) excite young students about physics and encourage University uptake in the subject; (ii) train young students in computer programming, a valuable transferrable skill; and (iii) promote our STFC funded research to enthusiastic physics students.
3. Knowledge transfer
We will facilitate knowledge exchange with industry, schools and the general public based on output from this STFC consolidated grant bid. To achieve this, we will:
- Work with RES to identify industry and academic partnerships that could be of mutual benefit.
- Work with the SEPnet employer engagement officer - Mrs Kay Pearson - to seek industry partnerships for our PhD students.
- Offer graduate training across the new GRADnet SEPnet network to ensure that our PhD students have business-relevant data mining and computational skills.
1. Economic impact
- We will work with our research & enterprise support team (RES) to explore opportunities for commercially exploiting new software algorithms and advances generated over the lifetime of the grant.
- We will ensure that our PhD students and postdocs have the necessary skills, experience and contacts to move out of astrophysics if they wish to do so, providing a talent-stream for British industry. To achieve this, we will deliver relevant training through through RES and GRADnet.
- We will organise an interdisciplinary workshop with our South East Physics Network (SEPnet) partners and RES on "Model Fitting". We will determine if methods developed in-house to cope with massive astronomical data sets like Gaia can find application in chemistry, engineering and/or financial modelling. Similarly, we hope to learn from modellers in these disciplines.
2. Social impact
We will ensure that all scientific work output from our STFC consolidated grant is made freely available to be used by interested industry partners, schools and colleges, and/or the interested public. We will achieve this by:
- Publishing all of our work in high ranking, peer-reviewed, journals; on the open access arXiv e-Print server; and on our Surrey Research Insight open access repository.
- Presenting our work at national and international conferences and workshops, writing press releases where appropriate.
- Making publicly available all of our software and, where possible, our simulation data products.
- Setting up a dedicated website for public engagement where we will make high resolution images and movies of our simulations publicly available.
- Promoting science results produced on this grant at our monthly public engagement events.
- Working with the physics department's outreach officer - Dr. Heather Campbell - to participate in major outreach initiatives across the country like the Royal Society Summer Science Exhibition and the Big Bang Fair.
- Working with Dr. Campbell to set up an "Astronomy Masterclass" - Simulating the Universe - aimed at first and second year sixth form students. This will (i) excite young students about physics and encourage University uptake in the subject; (ii) train young students in computer programming, a valuable transferrable skill; and (iii) promote our STFC funded research to enthusiastic physics students.
3. Knowledge transfer
We will facilitate knowledge exchange with industry, schools and the general public based on output from this STFC consolidated grant bid. To achieve this, we will:
- Work with RES to identify industry and academic partnerships that could be of mutual benefit.
- Work with the SEPnet employer engagement officer - Mrs Kay Pearson - to seek industry partnerships for our PhD students.
- Offer graduate training across the new GRADnet SEPnet network to ensure that our PhD students have business-relevant data mining and computational skills.
Publications
Antoci V
(2019)
The first view of d Scuti and ? Doradus stars with the TESS mission
in Monthly Notices of the Royal Astronomical Society
Balona L
(2019)
Rotational modulation in TESS B stars
Balona L. A.
(2019)
Rotational modulation in TESS B stars
in Monthly Notices of the Royal Astronomical Society
Belokurov V
(2020)
Unresolved stellar companions with Gaia DR2 astrometry
in Monthly Notices of the Royal Astronomical Society
Brogaard K
(2018)
The blue straggler V106 in NGC 6791: a prototype progenitor of old single giants masquerading as young
in Monthly Notices of the Royal Astronomical Society
Cantiello M
(2019)
Rotational modulation in TESS B stars
in Monthly Notices of the Royal Astronomical Society
Comerford T
(2020)
Estimating the outcomes of common envelope evolution in triple stellar systems
in Monthly Notices of the Royal Astronomical Society
Comerford T
(2019)
Bondi-Hoyle-Lyttleton accretion by binary stars
in Monthly Notices of the Royal Astronomical Society
Gessey-Jones T
(2022)
Impact of the Primordial Stellar Initial Mass Function on the 21-cm Signal
Gessey-Jones T
(2022)
Impact of the primordial stellar initial mass function on the 21-cm signal
in Monthly Notices of the Royal Astronomical Society
Description | Dr Giovanni Mirouh, co-author of submission of the "Race Equality Charter" application of the University of Surrey |
Geographic Reach | Local/Municipal/Regional |
Policy Influence Type | Participation in a guidance/advisory committee |
Description | ECR forum |
Geographic Reach | Local/Municipal/Regional |
Policy Influence Type | Membership of a guideline committee |
URL | https://www.surrey.ac.uk/researcher-development-programme/researcher-community/ecr-reps |
Description | ECR representative to the Race Equality Self-Assessment Team of the University of Surrey |
Geographic Reach | Local/Municipal/Regional |
Policy Influence Type | Membership of a guideline committee |
Impact | I am the representative for the University of Surrey in the Race Equality Self-Assessment Team of the University: this committee aims at improving working conditions for workers from ethnic minorities, and at submitting a Race Equality Charter bid in 2021. |
Description | Membership to HR Excellence in Research team |
Geographic Reach | National |
Policy Influence Type | Membership of a guideline committee |
Impact | These meetings led to the submission of a report and the design of an Action Plan for the 2020-2024 period (documents available at link below) |
URL | https://www.surrey.ac.uk/doctoral-college/early-career-researchers/hr-excellence-research-award |
Description | Covid19 extension |
Amount | £71,239 (GBP) |
Organisation | Science and Technologies Facilities Council (STFC) |
Sector | Public |
Country | United Kingdom |
Start | 03/2021 |
End | 08/2021 |
Description | Doctoral College Studentship |
Amount | £63,576 (GBP) |
Funding ID | RCK80004 |
Organisation | University of Surrey |
Sector | Academic/University |
Country | United Kingdom |
Start | 09/2019 |
End | 09/2022 |
Description | Marion Redfearn Trust PhD studentship |
Amount | £60,327 (GBP) |
Organisation | University of Surrey |
Sector | Academic/University |
Country | United Kingdom |
Start | 10/2020 |
End | 09/2023 |
Description | Royal Astronomical Society conference organisation grant |
Amount | £3,000 (GBP) |
Organisation | Royal Astronomical Society |
Sector | Academic/University |
Country | United Kingdom |
Start | 03/2020 |
End | 04/2020 |
Description | Stars for Schools |
Amount | £8,140 (GBP) |
Funding ID | ST/X005844/1 |
Organisation | Science and Technologies Facilities Council (STFC) |
Sector | Public |
Country | United Kingdom |
Start | 03/2023 |
End | 03/2026 |
Description | University of Surrey funded PhD studentship (came with my position in Surrey) |
Amount | £63,576 (GBP) |
Funding ID | RCK80004 |
Organisation | University of Surrey |
Sector | Academic/University |
Country | United Kingdom |
Start | 09/2018 |
End | 09/2021 |
Description | University of Surrey, Institute of Advanced Studies conference organisation grant |
Amount | £3,000 (GBP) |
Organisation | University of Surrey |
Sector | Academic/University |
Country | United Kingdom |
Start | 03/2020 |
End | 04/2020 |
Description | Asterochronometry |
Organisation | University of Birmingham |
Country | United Kingdom |
Sector | Academic/University |
PI Contribution | I am contributing to an ERC-funded project led by Dr. Andrea Miglio of the University of Birmingham. I will generate evolutionary paths of binary-star systems that exchange mass or merge, which we then plan to model - with his PhD student - using detailed stellar evolution and asteroseismology codes. |
Collaborator Contribution | Dr. Miglio obtained the funding for the project, which had its kick-off meeting two weeks ago (from 2019). The ERC project has contributed £3000 to a workshop I am orgnaising in Surrey at the end of March 2020 (coronavirus allowing). |
Impact | We have published a white paper for ESO, and are jointly organising a workshop in March 2020. |
Start Year | 2019 |
Description | Transients with Nadejda Blagorodnova Mujortova |
Organisation | University of Barcelona |
Country | Spain |
Sector | Academic/University |
PI Contribution | Starting from a workshop in Sexten last July, I'll be working with Nadia to simulate populations of binary stars and their optical transient merger outcomes. |
Collaborator Contribution | I provide the software, the binary_c population stellar nucleosynthesis framework, to model the merging stars. |
Impact | Nothing yet, we just started! Hoping to raise some funds this year. |
Start Year | 2023 |
Title | Software - Libmemoize |
Description | A library to memoize calls to a C function for arbitrary variable types (including arrays), the aim being to replace CPU time with meory storage of the results which are looked up. |
Type Of Technology | Software |
Year Produced | 2019 |
Open Source License? | Yes |
Impact | This library is used in my binary_c code and was released to the general public because it could be very useful in many applications. |
URL | https://gitlab.com/rob.izzard/libmemoize |
Title | binary_c-python |
Description | The binary_c-python library interfaces my binary_c software framework with the Python programming language. Developed in collaboration with my PhD student, David Hendriks, this software library is the key to the next generation of stellar population data, and is already being used on our computing clusters. |
Type Of Technology | Software |
Year Produced | 2021 |
Open Source License? | Yes |
Impact | Binary_c-python made its debut at the IMPRS Heidelberg summer school, where students used Jupyter notebooks running the software. |
URL | https://gitlab.com/binary_c/binary_c-python |
Title | libcdict - an associative array library for C. |
Description | Librchash is a wrapper around uthash to provide a set of C functions to do hashing (also known as associative arrays or dictionaries) in as general way as usefully possible. The idea is to use hashes almost as simply as they are in Perl or Python, but in C, and then output them to JSON format or input using jsmn. |
Type Of Technology | Software |
Year Produced | 2020 |
Open Source License? | Yes |
Impact | A generic associative array, also know as dictionary or hash, library in C, based on uthash and extended to be more user friendly and include integration features such as JSON output. |
URL | https://gitlab.com/rob.izzard/libcdict |
Title | librinterpolate |
Description | librinterpolate: a library to perform very fast N-dimensional linear interpolation on a gridded, or ungridded, dataset. |
Type Of Technology | Software |
Year Produced | 2022 |
Open Source License? | Yes |
Impact | It is embedded in binary_c, and the latest version, with its non-orthogonal table remapping, has revolutionised how we interpolate data. |
URL | https://gitlab.com/rob.izzard/librinterpolate |
Description | "Seismology of rotating stars" review talk at the PIMMS workshop 2021 by Gio Mirouh |
Form Of Engagement Activity | A talk or presentation |
Part Of Official Scheme? | No |
Geographic Reach | International |
Primary Audience | Industry/Business |
Results and Impact | TUESDAY 19TH JANUARY Seismology of rotating stars Dr Giovanni M. Mirouh, University of Surrey (UK) Rotation is ubiquitous in stars, it affects all stages of stellar evolution and associated oscillations. While slowly-rotating solar-like stars are well described by perturbative treatments, rapid rotation is a notorious source of complexity in so-called classical pulsators. In this review, I will briefly summarize the origin and impact of stellar rotation, and present recent works that crucially developed new approaches to describe the internal rotation of a growing number of stars across the HertzsprungRussell diagram. I will focus on rapidly-rotating main-sequence stars, in which theory and observations are finally converging thanks to the detection of regular patterns predicted by the models. All these exciting results offer ways of exploiting the unprecedented wealth of data provided by the Corot, Kepler and TESS space missions, and light the way to great future advances with the upcoming PLATO mission. Workshop was for ~30 people, online through Zoom, talks recording for access by their research groups. |
Year(s) Of Engagement Activity | 2021 |
URL | https://www.ias.surrey.ac.uk/wp-content/uploads/event-manager-uploads/programme/2021/01/Pulsations-W... |
Description | "Stars for Schools" talk at Stars 2020(2) conference, Cambridge |
Form Of Engagement Activity | A talk or presentation |
Part Of Official Scheme? | No |
Geographic Reach | International |
Primary Audience | Professional Practitioners |
Results and Impact | Talk to describe the Stars for Schools project at the Stars 2020/2022 conference in honour of Peter Eggleton at the Institute of Astronomy, University of Cambridge, 2022. |
Year(s) Of Engagement Activity | 2022 |
URL | https://www.ast.cam.ac.uk/meetings/2022/stars.mark.80th.birthday.peter.eggleton |
Description | 2018: International Dark Matter day |
Form Of Engagement Activity | Participation in an open day or visit at my research institution |
Part Of Official Scheme? | No |
Geographic Reach | Regional |
Primary Audience | Public/other audiences |
Results and Impact | Oct 2018: International Dark Matter day |
Year(s) Of Engagement Activity | 2018 |
URL | https://www.surrey.ac.uk/events/20181029-seeing-the-unseen |
Description | A talk on "Complementary skills: Writing skills / tools, research management" |
Form Of Engagement Activity | A talk or presentation |
Part Of Official Scheme? | No |
Geographic Reach | National |
Primary Audience | Postgraduate students |
Results and Impact | This was my second talk at the Covid-delayed UKRI/STFC school. This one was about scientific writing skills, associated tools (software) and how to manage research. About 150 students were watching, and the talk is available on youtube for those who could not be present. |
Year(s) Of Engagement Activity | 2021 |
URL | http://astro-online.iopconfs.org/home |
Description | BRIDGCE workshop: contributed talk on tides |
Form Of Engagement Activity | A talk or presentation |
Part Of Official Scheme? | No |
Geographic Reach | National |
Primary Audience | Professional Practitioners |
Results and Impact | 13 December 2021: BRIDGCE workshop: contributed talk on tides. BRIDGCE is the UK umbrella network for research into stellar evolution and galactic chemical evolution, so is the perfect place for Dr Giovanni Mirouh to give a talk on his work on tides in binary-star systems. |
Year(s) Of Engagement Activity | 2021 |
Description | Co-organiser of international workshop "PULSATIONS IN INTERMEDIATE-MASS, MASSIVE AND/OR MULTIPLE STARS" 2021 |
Form Of Engagement Activity | Participation in an activity, workshop or similar |
Part Of Official Scheme? | No |
Geographic Reach | International |
Primary Audience | Professional Practitioners |
Results and Impact | This workshop was delayed from 2020 because of Covid, and hence switched to an online format. Supported by the Royal Astronomical Society and the Institute of Advanced Studies, University of Surrey, this workshop brought together experts in two fields of astrophysics that really need to work together more: asteroseismology and binary stars. About 30 people, the number limited to make sure of generous discussion time, met to plan this merger of the fields for the next decade. The workshop introduction is given below. ------ Most stellar systems are binaries in which stars form as twins. Having a companion greatly impacts their evolution. Tides deform and spin up stars, and excite oscillations, while cataclysmic events like mass transfer, common envelopes, mergers and explosions can create exotic stellar objects that challenge stellar evolution theory. Over the last few decades, asteroseismology has become a major source of information about stellar interiors. The Corot, Kepler and TESS space-missions measured thousands of stellar lightcurves. Their analysis yields stellar masses and radii with unprecedented accuracy, but mostly in single or non-interacting stars. Stars in close binaries were, and are, neglected in stellar-oscillation studies because of their far more complicated evolutionary paths. Their study requires dedicated techniques that link oscillations to binary-star interaction physics, and similarly complex methods to match models with observations. In particular, correct interpretations of oscillation frequencies in binaries will drive the development of next-generation stellar models including more precise treatments of internal mixing and multidimensional effects. This breakthrough international workshop will pioneer the potential of asteroseismology in the analysis of binary stars. It will connect international experts in these fields at all stages of their careers, to forge new approaches and techniques that build on the wealth of data delivered by 21st-century astronomical missions like Corot, Kepler, TESS and BRITE, and advanced stellar evolution modelling. |
Year(s) Of Engagement Activity | 2021 |
URL | https://www.ias.surrey.ac.uk/event/pulsations-mass-stars/ |
Description | Contributed talk at BRIDGCE workshop |
Form Of Engagement Activity | Participation in an activity, workshop or similar |
Part Of Official Scheme? | No |
Geographic Reach | National |
Primary Audience | Postgraduate students |
Results and Impact | I gave a talk about my work on circumbinary discs as funded by this STFC programme. |
Year(s) Of Engagement Activity | 2020 |
URL | http://www.bridgce.ac.uk/events/brigce-annual-meeting-2020 |
Description | Dr Giovanni Mirouh gave a talk at MOBSTER - the OB stars with TESS workshop - about tides in binary stars |
Form Of Engagement Activity | A talk or presentation |
Part Of Official Scheme? | No |
Geographic Reach | International |
Primary Audience | Professional Practitioners |
Results and Impact | This work is one of the main spin offs from this project. It used the models we newly developed, alongside existing tidal physics, to predict tides in stellar populations. |
Year(s) Of Engagement Activity | 2021 |
Description | Dr Giovanni Mirouh gave a talk at the IRAP Toulouse yearly workshop on binary-star tides |
Form Of Engagement Activity | A talk or presentation |
Part Of Official Scheme? | No |
Geographic Reach | Regional |
Primary Audience | Professional Practitioners |
Results and Impact | Dr Giovanni Mirouh gave a seminar on tides in binary-star systems at the IRAP Toulouse yearly workshop. |
Year(s) Of Engagement Activity | 2021 |
Description | Ecole Evry Schatzman |
Form Of Engagement Activity | Participation in an activity, workshop or similar |
Part Of Official Scheme? | No |
Geographic Reach | International |
Primary Audience | Professional Practitioners |
Results and Impact | Attended the Ecole Evry Schatzman ("summer" school on 2D and 3D modelling of stars), Roscoff, Nov 2018 |
Year(s) Of Engagement Activity | 2018 |
Description | Exeter |
Form Of Engagement Activity | A talk or presentation |
Part Of Official Scheme? | No |
Geographic Reach | Regional |
Primary Audience | Professional Practitioners |
Results and Impact | Feb 2019: Seminar at the University of Exeter weekly astrophysics seminar. |
Year(s) Of Engagement Activity | 2019 |
Description | Guest lecture by Dr Giovanni Mirouh on "The Lorenz Attractor" |
Form Of Engagement Activity | A talk or presentation |
Part Of Official Scheme? | No |
Geographic Reach | Local |
Primary Audience | Undergraduate students |
Results and Impact | Dr Mirouh gave a talk about "The Lorenz Attractor" to undergraduate students at the University of Surrey. |
Year(s) Of Engagement Activity | 2021 |
Description | Heidelberg IMPRS summer school lecture series |
Form Of Engagement Activity | Participation in an activity, workshop or similar |
Part Of Official Scheme? | No |
Geographic Reach | International |
Primary Audience | Postgraduate students |
Results and Impact | I gave two lectures on stellar population synthesis at the Heidelberg IMPRS summer school for international students. This is an excellent place to train, and meet, new students from across Europe. You can watch them at https://www.youtube.com/watch?v=i7-mv6YcvOo https://www.youtube.com/watch?v=FjregpfUE9Y |
Year(s) Of Engagement Activity | 2021 |
URL | https://www.youtube.com/watch?v=i7-mv6YcvOo |
Description | IRAP |
Form Of Engagement Activity | A talk or presentation |
Part Of Official Scheme? | No |
Geographic Reach | National |
Primary Audience | Professional Practitioners |
Results and Impact | Jan 2019: Invited talk at the IRAP Toulouse stellar physics workshop. |
Year(s) Of Engagement Activity | 2019 |
Description | Institute of Astronomy, Cambridge: seminar in A. Fialkov's group by Dr Giovanni Mirouh |
Form Of Engagement Activity | A talk or presentation |
Part Of Official Scheme? | No |
Geographic Reach | Local |
Primary Audience | Professional Practitioners |
Results and Impact | A group seminar by Dr Giovanni Mirouh at the Institute of Astronomy, Cambridge, the UK's premier astronomical research institute. |
Year(s) Of Engagement Activity | 2022 |
Description | Invited review talk at PIMMS workshop, 2021 |
Form Of Engagement Activity | A talk or presentation |
Part Of Official Scheme? | No |
Geographic Reach | International |
Primary Audience | Industry/Business |
Results and Impact | Interacting stars and asteroseismology Dr Robert Izzard, University of Surrey (UK) Models of stellar populations including only single stars are yesterday's news: we now know that most stars more massive than the Sun are in multiple systems. Many of these are binaries or in higher-order multiples which are hierarchical so contain gravitationally bound effectively-single stars and binaries. I will review how these systems evolve and how their stars interact, including mass and angular momentum transfer, and stellar merging, with a focus on how interaction alters their evolution and hence their asteroseismological properties. The workshop was on Zoom for ~30 people, with the talks recorded for access by their research groups |
Year(s) Of Engagement Activity | 2021 |
URL | https://www.ias.surrey.ac.uk/wp-content/uploads/event-manager-uploads/programme/2021/01/Pulsations-W... |
Description | Invited talk at JINA Horizons |
Form Of Engagement Activity | Participation in an activity, workshop or similar |
Part Of Official Scheme? | No |
Geographic Reach | International |
Primary Audience | Professional Practitioners |
Results and Impact | I gave an invited review talk on stellar population nucleosynthesis. It was broadcast worldwide as part of JINA, with hundreds of participants. |
Year(s) Of Engagement Activity | 2020 |
URL | https://indico.frib.msu.edu/event/39/ |
Description | Invited talk at the European Astronomical Society annual meeting, "Binary_c in 2021". |
Form Of Engagement Activity | A talk or presentation |
Part Of Official Scheme? | No |
Geographic Reach | International |
Primary Audience | Professional Practitioners |
Results and Impact | This was an invited talk about my "binary_c" binary stellar-evolutionary software framework, as developed in part by the various STFC grants mentioned here. The European Astronomical Society is one of the key locations at which to give such talks, and it allowed me to meet many new students and potential postdocs for the future. Despite being online, it was a great way to meet them. |
Year(s) Of Engagement Activity | 2021 |
URL | https://www.youtube.com/watch?v=gJvfNvCrfmQ |
Description | Lecture at STFC/UKRI school on "Stellar Pathways" |
Form Of Engagement Activity | A talk or presentation |
Part Of Official Scheme? | No |
Geographic Reach | National |
Primary Audience | Postgraduate students |
Results and Impact | This talk was at the 2020, delayed to 2021, "summer school" of STFC/UKRI for astronomy PhD students. About 150 students attended and the talk is online for anyone else who is interested. |
Year(s) Of Engagement Activity | 2021 |
URL | http://astro2020.iopconfs.org/home |
Description | PHOST conference |
Form Of Engagement Activity | Participation in an activity, workshop or similar |
Part Of Official Scheme? | No |
Geographic Reach | International |
Primary Audience | Professional Practitioners |
Results and Impact | Sep 2018: Contributed talk at the PHOST conference in Banyuls-sur-Mer. |
Year(s) Of Engagement Activity | 2018 |
Description | Poster presentation at EAS 2020 by Gio Mirouh |
Form Of Engagement Activity | Participation in an activity, workshop or similar |
Part Of Official Scheme? | No |
Geographic Reach | International |
Primary Audience | Industry/Business |
Results and Impact | presented a poster at EAS 2020, on rotational splittings in fast-rotating stars - that have been published in Reese et al. 2021 (29 Mar-3 Apr 2020) |
Year(s) Of Engagement Activity | 2020 |
URL | https://eas.unige.ch/EAS2020/program.jsp |
Description | Science talk at LERMA, Paris, France by G Mirouh |
Form Of Engagement Activity | A talk or presentation |
Part Of Official Scheme? | No |
Geographic Reach | Local |
Primary Audience | Professional Practitioners |
Results and Impact | Science talk on rotating stars at LERMA, Paris, France by G Mirouh |
Year(s) Of Engagement Activity | 2019 |
Description | SoFAR workshop at ISSI Bern, Switzerland (talk by G Mirouh) |
Form Of Engagement Activity | A talk or presentation |
Part Of Official Scheme? | No |
Geographic Reach | International |
Primary Audience | Professional Practitioners |
Results and Impact | Talk at the SOFAR workshop, an international collaboration, details are available https://www.issibern.ch/teams/sofar/ |
Year(s) Of Engagement Activity | 2019 |
URL | https://www.issibern.ch/teams/sofar/ |
Description | Tabriz |
Form Of Engagement Activity | A talk or presentation |
Part Of Official Scheme? | No |
Geographic Reach | National |
Primary Audience | Professional Practitioners |
Results and Impact | Nov 2018: Visit at the Tabriz University: seminar at the RIAPA institute, contacts taken with the local astronomical society (outreach). |
Year(s) Of Engagement Activity | 2018 |
Description | Talk "Gap transients, stellar populations and nucleosynthesis" at "GAP TRANSIENTS: GIANT ERUPTIONS OR STELLAR MERGERS?" workshop |
Form Of Engagement Activity | A talk or presentation |
Part Of Official Scheme? | No |
Geographic Reach | International |
Primary Audience | Professional Practitioners |
Results and Impact | Review talk about stellar mergers leading to gap transients. |
Year(s) Of Engagement Activity | 2022 |
URL | https://www.sexten-cfa.eu/event/gaptransients/ |
Description | Talk "Understanding binary stars with Gaia" at "Stellar evolution along the HR diagram with Gaia" |
Form Of Engagement Activity | A talk or presentation |
Part Of Official Scheme? | No |
Geographic Reach | International |
Primary Audience | Professional Practitioners |
Results and Impact | About 100 people met for a week to discuss the results of the next Gaia data release. |
Year(s) Of Engagement Activity | 2022 |
URL | https://indico.ict.inaf.it/event/2023/page/731-mw-gaia |
Description | Talk at Liverpool John Moores University by G Mirouh |
Form Of Engagement Activity | A talk or presentation |
Part Of Official Scheme? | No |
Geographic Reach | Local |
Primary Audience | Professional Practitioners |
Results and Impact | Science talk on rotating stars at Liverpool John Moores University by G Mirouh |
Year(s) Of Engagement Activity | 2019 |
Description | Talk at NAOJ, Tokyo, Japan by G Mirouh |
Form Of Engagement Activity | A talk or presentation |
Part Of Official Scheme? | No |
Geographic Reach | Local |
Primary Audience | Professional Practitioners |
Results and Impact | Scientific talk on rotating stars at NAOJ, Tokyo, Japan |
Year(s) Of Engagement Activity | 2019 |
Description | Talk at Tohoku University, Sendai, Japan by G Mirough |
Form Of Engagement Activity | A talk or presentation |
Part Of Official Scheme? | No |
Geographic Reach | Local |
Primary Audience | Professional Practitioners |
Results and Impact | Scientific talk on rotating stars at Tohoku University, Sendai, Japan by G Mirough |
Year(s) Of Engagement Activity | 2019 |
Description | Talk at University of Tokyo, Japan by G Mirouh |
Form Of Engagement Activity | A talk or presentation |
Part Of Official Scheme? | No |
Geographic Reach | Local |
Primary Audience | Professional Practitioners |
Results and Impact | Scientific talk by G Mirouh on rotating stars at University of Tokyo, Japan |
Year(s) Of Engagement Activity | 2019 |
Description | Talk on "Tides in Binary stars" at the sf2a (French astronomical society) |
Form Of Engagement Activity | A talk or presentation |
Part Of Official Scheme? | No |
Geographic Reach | National |
Primary Audience | Professional Practitioners |
Results and Impact | Dr Giovanni Mirouh gave a talk on tides in binary-star systems at the sf2a (French Astronomical Society). |
Year(s) Of Engagement Activity | 2021 |
Description | UK National Astronomy Meeting poster on tides in binary-star systems |
Form Of Engagement Activity | Participation in an activity, workshop or similar |
Part Of Official Scheme? | No |
Geographic Reach | National |
Primary Audience | Professional Practitioners |
Results and Impact | Dr Giovanni Mirouh gave a poster presentation on his work on stellar tides made during this project. |
Year(s) Of Engagement Activity | 2021 |
Description | University of Surrey Open day |
Form Of Engagement Activity | Participation in an open day or visit at my research institution |
Part Of Official Scheme? | No |
Geographic Reach | Regional |
Primary Audience | Public/other audiences |
Results and Impact | Oct 2018: University of Surrey Open day |
Year(s) Of Engagement Activity | 2018 |
Description | World Space Week |
Form Of Engagement Activity | Participation in an activity, workshop or similar |
Part Of Official Scheme? | No |
Geographic Reach | Regional |
Primary Audience | Public/other audiences |
Results and Impact | As part of World Space Week, 5th October 2019, I led a "Window to the Stars" exhibit where myself and my students educated and entertained the public about stars and binary stars. We met hundreds of people in this event, where we took over the High Street in Guildford. It was a great success, and will hopefully be repeated in 2020. |
Year(s) Of Engagement Activity | 2019 |
URL | https://www.surrey.ac.uk/events/20191005-world-space-week-2019 |
Description | a talk at BRIDGCE on mass transfer for stellar population codes (14-17 Dec 2020) by Gio Mirouh |
Form Of Engagement Activity | A talk or presentation |
Part Of Official Scheme? | No |
Geographic Reach | National |
Primary Audience | Industry/Business |
Results and Impact | a talk at BRIDGCE on mass transfer for stellar population codes (14-17 Dec 2020) |
Year(s) Of Engagement Activity | 2020 |
URL | http://www.bridgce.ac.uk/events/brigce-annual-meeting-2020 |
Description | binary_c workshop, University of Surrey, Guildford |
Form Of Engagement Activity | Participation in an activity, workshop or similar |
Part Of Official Scheme? | No |
Geographic Reach | International |
Primary Audience | Professional Practitioners |
Results and Impact | The binary_c workshop was designed to introduce the software framework, as developed under this STFC grant and other grants (e.g. EU, NWO, Humboldt) over the many years. Talks were given by Drs Izzard and Mirouh, and included our students and researchers and their students from around the world (mostly digitally by Zoom). The workshop URL is http://personal.ph.surrey.ac.uk/~ri0005/binary_c-workshop.html Videos are available at https://www.youtube.com/channel/UCsWzzMdthAs5LMmDnXEqzrg |
Year(s) Of Engagement Activity | 2019 |
URL | http://personal.ph.surrey.ac.uk/~ri0005/binary_c-workshop.html |
Description | outreach talk at the Farnham Astronomical Society (11 Aug 2020) by Gio Mirouh |
Form Of Engagement Activity | A talk or presentation |
Part Of Official Scheme? | No |
Geographic Reach | Regional |
Primary Audience | Public/other audiences |
Results and Impact | outreach talk at the Farnham Astronomical Society (11 Aug 2020) "Asteroseismology - The music of the stars" |
Year(s) Of Engagement Activity | 2020 |
URL | https://www.farnham-as.co.uk/2019/11/speaker-programme-for-2020/ |
Description | outreach talk at the Guildford Astronomical Society (18 Feb 2021) by Gio Mirouh |
Form Of Engagement Activity | A talk or presentation |
Part Of Official Scheme? | No |
Geographic Reach | Regional |
Primary Audience | Public/other audiences |
Results and Impact | A Zoom Talk : "The music of stars reveals their deep interiors" |
Year(s) Of Engagement Activity | 2021 |
URL | https://www.guildfordas.org/meetings/ |
Description | talk "Gap transients, stellar populations and nucleosynthesis" at UK National Astronomy Meeting 2022 |
Form Of Engagement Activity | A talk or presentation |
Part Of Official Scheme? | No |
Geographic Reach | National |
Primary Audience | Professional Practitioners |
Results and Impact | Talk about gap transients work at NAM 2022. |
Year(s) Of Engagement Activity | 2022 |
URL | https://nam2022.org/ |
Description | talk by Gio Mirouh at the IRAP stellar physics group workshop on the spectroscopy of rapidly-rotating stars (27-28 Jan 2020) |
Form Of Engagement Activity | A talk or presentation |
Part Of Official Scheme? | No |
Geographic Reach | National |
Primary Audience | Industry/Business |
Results and Impact | talk at the IRAP stellar physics group workshop on the spectroscopy of rapidly-rotating stars |
Year(s) Of Engagement Activity | 2020 |