Atomic data and spectral observations of the solar corona
Lead Research Organisation:
University of Cambridge
Department Name: Applied Maths and Theoretical Physics
Abstract
Mr Roger Dufresne will carry out his PhD programme within the atomic astrophysics group at DAMTP.
The PhD programme will include becoming familiar with the atomic data that we provide to the astrophysics community to analyse spectral data. During the first part of the programme, the student will carry out a literature review and attend some
post-graduate courses (most likely part-III astrophysical fluids, and various programming/IT courses).
The student will then become familiar with current spectroscopic observations of the Sun, obtained with the Hinode and IRIS missions. The project will probably include improving the modeling of time-dependent ionisation in high-density plasma, which is relevant for the current IRIS mission and the upcoming (2019) Solar Orbiter SPICE spectrometer.
It could also include analysis of chemical abundance variations using pre-existing data from SoHO and Hinode, in preparation of new X-ray observations that will be carried out with a sounding rocket (MaGIXS), new UV observations with Solar Orbiter SPICE and new observations in the visible with DKIST.
The PhD programme will include becoming familiar with the atomic data that we provide to the astrophysics community to analyse spectral data. During the first part of the programme, the student will carry out a literature review and attend some
post-graduate courses (most likely part-III astrophysical fluids, and various programming/IT courses).
The student will then become familiar with current spectroscopic observations of the Sun, obtained with the Hinode and IRIS missions. The project will probably include improving the modeling of time-dependent ionisation in high-density plasma, which is relevant for the current IRIS mission and the upcoming (2019) Solar Orbiter SPICE spectrometer.
It could also include analysis of chemical abundance variations using pre-existing data from SoHO and Hinode, in preparation of new X-ray observations that will be carried out with a sounding rocket (MaGIXS), new UV observations with Solar Orbiter SPICE and new observations in the visible with DKIST.
Publications
Dufresne R
(2019)
Modelling ion populations in astrophysical plasmas: carbon in the solar transition region
in Astronomy & Astrophysics
Dufresne R
(2021)
Modelling low charge ions in the solar atmosphere
in Monthly Notices of the Royal Astronomical Society
Studentship Projects
| Project Reference | Relationship | Related To | Start | End | Student Name |
|---|---|---|---|---|---|
| ST/N503976/1 | 01/10/2015 | 31/03/2021 | |||
| 1936351 | Studentship | ST/N503976/1 | 01/10/2017 | 31/05/2021 | Roger Dufresne |
| ST/R504658/1 | 01/10/2017 | 30/09/2021 | |||
| 1936351 | Studentship | ST/R504658/1 | 01/10/2017 | 31/05/2021 | Roger Dufresne |
| Description | Isaac Newton Studentship |
| Amount | £42,000 (GBP) |
| Organisation | University of Cambridge |
| Sector | Academic/University |
| Country | United Kingdom |
| Start | 10/2017 |
| End | 03/2021 |
| Title | Atomic data |
| Description | Produced atomic collisional data for astrophysics. Produced for paper and stored at the CDS. |
| Type Of Material | Database/Collection of data |
| Year Produced | 2019 |
| Provided To Others? | Yes |
| Impact | Data for enhanced modelling of plasma diagnostics. |
| URL | http://vizier.u-strasbg.fr/viz-bin/VizieR?-source=J/A+A/626/A123 |
| Description | Atomic physics |
| Organisation | University of Strathclyde |
| Department | Department of Physics |
| Country | United Kingdom |
| Sector | Academic/University |
| PI Contribution | Calculated atomic data for astrophysics |
| Collaborator Contribution | Taught me in use of atomic code and theory for making calculations |
| Impact | CAlculated atomic data. Produced a paper which is under review |
| Start Year | 2018 |
| Description | Public outreach event by the department |
| Form Of Engagement Activity | Participation in an open day or visit at my research institution |
| Part Of Official Scheme? | No |
| Geographic Reach | Local |
| Primary Audience | Public/other audiences |
| Results and Impact | General public open day at the maths department, which saw several hundred people involved with hands-on activities about general science and specific research areas. |
| Year(s) Of Engagement Activity | 2019 |