Discovery and characterisation of transiting exoplanets

Lead Research Organisation: University of Warwick
Department Name: Physics

Abstract

The project will include work to discover new transiting exoplanets using data from the Next Generation Transit Survey (NGTS) and follow up observations on a wide range of national and international facilities. The project will also include characterisation of the atmospheres of the discovered exoplanets using optical/IR and X-ray telescopes

Publications

10 25 50

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Bourrier V (2016) No hydrogen exosphere detected around the super-Earth HD 97658 b in Astronomy & Astrophysics

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Jenkins J (2020) An ultrahot Neptune in the Neptune desert in Nature Astronomy

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King G (2018) The XUV environments of exoplanets from Jupiter-size to super-Earth in Monthly Notices of the Royal Astronomical Society

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King G (2019) The XUV irradiation and likely atmospheric escape of the super-Earth p Men c in Monthly Notices of the Royal Astronomical Society: Letters

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Kirk J (2018) LRG-BEASTS III: ground-based transmission spectrum of the gas giant orbiting the cool dwarf WASP-80 in Monthly Notices of the Royal Astronomical Society

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Lam K (2018) K2-265 b: a transiting rocky super-Earth in Astronomy & Astrophysics

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Osborn H (2017) K2-110 b: a massive mini-Neptune exoplanet in Astronomy & Astrophysics

Studentship Projects

Project Reference Relationship Related To Start End Student Name
ST/N504506/1 01/10/2015 31/03/2021
1622607 Studentship ST/N504506/1 05/10/2015 31/03/2019 George King
 
Description *Characterisation of planets around other stars ("exoplanets") and how the X-ray light from their star affects their atmospheres. Over a dozen planet-hosting stars studied and their X-ray output measured.

*Analysis performed during this project includes detection of the first X-ray transit of a exoplanet across its host star ever unambiguously detected.

*Avenues for future work include investigating other candidate systems for X-ray transit detection.
Exploitation Route This work can provide a foundation for others wishing to research these and related topics to build upon. Whether that be looking for more X-ray transits of exoplanets, investigating how exoplanets' atmospheres change over their lifetimes, and related implications for the habitability of exoplanets.
Sectors Other

 
Description ICIC Data Analysis 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 This was a workshop on data analysis, with a primary focus on Bayesian inference and MCMC methods. There was a combination of lectures and hands-on coding related to the lecture material. This provided me with a much deeper insight into the inner workings of the methods and ideas presented than I previously held, and has enabled better use of the methods in my own research since.
Year(s) Of Engagement Activity 2016
URL http://www.imperial.ac.uk/astrophysics/centre-for-inference-and-cosmology/seminars-and-events/data-a...
 
Description Oral presentation - South East Exoplanets Meeting 
Form Of Engagement Activity A talk or presentation
Part Of Official Scheme? No
Geographic Reach Regional
Primary Audience Postgraduate students
Results and Impact I gave a talk on a recent piece of research which will be submitted to MNRAS soon on the time evolution of EUV emission of stars, relevant when considering the history and evolution of exoplanet atmospheres.
Year(s) Of Engagement Activity 2019
 
Description Oral presentation - Transiting Exoplanets conference (Keele, 2017) 
Form Of Engagement Activity A talk or presentation
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Other audiences
Results and Impact I gave a 10 minute presentation to the conference audience on a piece of research concerning an X-ray transit search in a nearby planetary system by the European Space Agency's X-ray space telescope XMM-Newton. I received several questions afterwards, both in the session itself to the whole audience and individually during the following breaks in proceedings. Some discussion of future work ideas was had.
Year(s) Of Engagement Activity 2017
URL https://wasp-planets.net/conference/
 
Description Oral presentation - UKEXOM (Oxford, 2018) 
Form Of Engagement Activity A talk or presentation
Part Of Official Scheme? No
Geographic Reach National
Primary Audience Other audiences
Results and Impact I gave a 12 minute presentation to the conference audience on a piece of research concerning an X-ray transit search in a nearby planetary system by the European Space Agency's X-ray space telescope XMM-Newton. I received several questions afterwards, both in the session itself to the whole audience and individually during the following breaks in proceedings. Some discussion of future work ideas was had.
Year(s) Of Engagement Activity 2018
URL https://users.physics.ox.ac.uk/~pierrehumbert/ukexom2018/
 
Description Planetarium school visits 
Form Of Engagement Activity A talk or presentation
Part Of Official Scheme? No
Geographic Reach Regional
Primary Audience Schools
Results and Impact I have been involved with numerous (I've lost count exactly how many, but it is around 20-25) visits and events with our Astronomy group's inflatable planetarium. We have taken it out to many schools across the West Midlands, as well as hosting a few events here at the university. We typically present ~20-30 minute shows to school children to engage them in astronomy and introduce some very basic astrophysical concepts and ideas. Where time allows, we try to give an opportunity for the pupils to ask us questions, during which time we have received a wide range of very interesting questions. There is a general emphasis throughout on promoting interest in astronomy as well as science in general. The reaction from the pupils and the schools is almost entirely always positive. We have been known to receive follow up questions from pupils via emails from teachers at the schools. Over the time that I have been involved in the visits, we have seen the popularity of our planetarium among schools in the region increase significantly, with it being over-subscribed during much of school term time.
Year(s) Of Engagement Activity 2015,2016,2017,2018,2019
URL https://warwick.ac.uk/fac/sci/physics/research/astro/outreach/planetarium/
 
Description Poster - Exoplanets II 
Form Of Engagement Activity A talk or presentation
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Other audiences
Results and Impact I presented a poster at the Exoplanets II conference at the University of Cambridge, on a piece of research concerning observations of a number of planetary systems in a young open cluster by the European Space Agency's X-ray space telescope XMM-Newton. The audience was other postgraduate students, postdocs and academics.
Year(s) Of Engagement Activity 2018
URL https://www.exoplanetscience2.org/
 
Description Poster - UKEXOM 2016 
Form Of Engagement Activity A talk or presentation
Part Of Official Scheme? No
Geographic Reach National
Primary Audience Other audiences
Results and Impact I presented a poster at the 2016 UK Exoplanet Meeting at the University of Exeter, on a piece of research concerning observations of a number of planetary systems by the European Space Agency's X-ray space telescope XMM-Newton. The audience was other postgraduate students, postdocs and academics.
Year(s) Of Engagement Activity 2016
URL http://ukexom16.co.uk/
 
Description Poster - UKEXOM 2017 
Form Of Engagement Activity A talk or presentation
Part Of Official Scheme? No
Geographic Reach National
Primary Audience Other audiences
Results and Impact I presented a poster at the 2017 UK Exoplanet Meeting at the University of St Andrews, on a piece of research concerning observations of a number of planetary systems by the European Space Agency's X-ray space telescope XMM-Newton. The audience was other postgraduate students, postdocs and academics.
Year(s) Of Engagement Activity 2017
URL https://ukexo2017.sciencesconf.org/
 
Description Poster - UKEXOM 2019 
Form Of Engagement Activity A talk or presentation
Part Of Official Scheme? No
Geographic Reach National
Primary Audience Other audiences
Results and Impact I presented a poster at the UK Exoplanet Community meeting at Imperial College London in April 2019, describing our recent paper in MNRAS on the Pi Men planetary system - the first discovery by the NASA TESS mission - where we used archival observations from ROSAT and Swift to characterise the XUV environment in which the planet resides.
Year(s) Of Engagement Activity 2019
URL https://ukexcon19.github.io/