CV

Education

• PhD in Astrophysics, University of Bristol (Jan 2023 - Present).
  • Research Focus: Emission Spectroscopy and Eclipse Mapping of Transiting Exoplanet Atmospheres with JWST and Ariel.
  • Supervisor: Dr Hannah Wakeford.
• MPhys Physics with Astrophysics, University of Leeds (Sep 2018 - Jul 2022).
  • Grade: First Class (Average Mark - 87).
  • MPhys Project: Studying the Invisible in the Visible: An Optical Catalogue and Pilot Survey of the Multiplicity of Massive Young Stellar Objects (MYSOs) using Gaia.
    • MPhys Project Supervisor: Professor René Oudmaijer.

Research Positions

• ESA Archival Research Visitor, European Space Research and Technology Centre (ESTEC, Oct - Dec 2024).
  • Research Focus: Assessing the Eclipse Mapping Capabilities of Ariel through JWST Archival Studies.
  • Hosts: Dr Maximillian Günther & Dr Theresa Lüftinger.

Grants, Scholarships, and Awards

• Peter Bye Travel Bursary, University of Bristol (Jul 2025).
  • Competitively awarded to fund conference travel (£500).
• ESA Archival Research Visitor Funding, European Space Agency (Sep - Dec 2024).
  • Competitively awarded and fully funded (~£10,000).
• Bolton Prize in Astrophysics, University of Leeds (2022).
  • Awarded to the student, on a Physics with Astrophysics programme, achieving the highest classification average.
• Scholarship of Academic Excellence, University of Leeds (2018 - 2022).
  • Awarded to students achieving A*A*A or higher at A level, and thereafter maintaining a first class average. £1000 per year.

Conferences, Summer Schools, and Workshops

Conferences

• Exoclimes VII Conference, Université de Montréal, Canada (Jul 2025).
  • Contributed poster.
• UK Exoplanet Meeting (UKExoM) 2025, University of Leeds, UK (Apr 2025).
  • Contributed poster.
• Exoplanets V Conference, Leiden, Netherlands (Jun 2024).
  • Contributed talk.
• UK Exoplanet Meeting (UKExoM) 2024, University of Birmingham, UK (Apr 2024).
  • Contributed talk.
• ExoClimes VI Conference, University of Exeter, UK (Jun 2023).
  • Contributed poster.

Summer Schools

• ARES IV (Ariel Summer School), Frèjus, France (Jun 2023).
• ExoSLAM I Summer School, University of Exeter, UK (Jun 2023).

Workshops

• BOWIE+ Collaboration JWST Proposal Workshop, University of Bristol, UK (Sep 2025).
  • Session Chair.
• BOWIE+ Collaboration JWST Proposal Workshop, University of Leeds, UK (Apr 2025).
  • Session Chair.
• BOWIE+ Collaboration JWST Proposal Workshop, University of Bristol, UK (Sep 2023).
  • Local Organising Committee (LOC).
• BOWIE+ Collaboration JWST Proposal Workshop, University of Oxford, UK (Mar 2023).

Talks, Seminars, and Posters

Seminars

• ECR Highlights Seminar, BOWIE+ Online Seminar Series (Nov 2025).
  • “Eclipse Mapping with Ariel: Future Prospects for a Population-Level Mapping Survey”.
• Astrophysics Seminar, University of Leicester (Mar 2025).
  • “Eclipse mapping of exoplanet atmospheres: today with JWST, one day with Ariel”.
• Breakfast Seminar, ESA ESTEC (Dec 2024).
  • “Mapping the Dayside Atmospheres of Transiting Exoplanets: today with JWST, one day with Ariel”.
• ExoCoffee, Max Planck Institute for Astronomy (MPIA).
  • Summary of “JWST-TST DREAMS: Non-Uniform Dayside Emission for WASP-17b from MIRI/LRS” (Nov 2024).
  • Summary of “Eclipse Mapping with Ariel: Future Prospects for a Population-Level Mapping Survey” (Feb 2026).
• Exoplanets & Discs Meeting, University of Amsterdam (Nov 2024).
  • “A Tale of Two Models: the limitations of 1D modelling and need for 3D modelling of exoplanet atmospheres in the era of JWST”.
• Exoplanet Lunch Meeting, University of Leiden (Nov 2024).
  • “A Tale of Two Models: the limitations of 1D modelling and need for 3D modelling of exoplanet atmospheres in the era of JWST”.
• Exoplanet Seminar, University of Oxford (Sep 2024).
  • “From telescope to paper: a crash-course on JWST data reduction, modelling, and interpretation”.

Talks

• UKExoM 2026 (Invited Highlight Talk, Apr 2026).
  • “Diving through the Dynamics of Exoplanet Atmospheres with 3D Eclipse Mapping”.
• Ariel Open Conference (Contributed Talk, Mar 2026).
  • “Eclipse Mapping with Ariel: Future Prospects for a Population-Level Mapping Survey”.
• Madrid Area Exoplanet Science Meeting (Invited Talk, Online, Dec 2024).
  • “Looking on the Bright Side: Mapping the Dayside Atmospheres of Transiting Exoplanets with JWST (…and More?)”.
• Exoplanets V (Contributed Talk, Jun 2024).
  • “A comprehensive 3D eclipse map of the hot Jupiter WASP-17b”.
• UKExoM 2024 (Contributed Talk, Apr 2024).
  • “The First Eclipse Map of the Hot Jupiter WASP-17b”.

Posters

• ExoClimes VII (Jul 2025).
  • “A Population-Level Mapping Survey of Hot Jupiter Atmospheric Dynamics with Ariel”.
• UKExoM 2025 (Apr 2025).
  • “A Population-Level Mapping Survey of Hot Jupiter Atmospheric Dynamics with Ariel”.
• ExoClimes VI (Jun 2023).
  • “MIRI/LRS Dayside Emission Spectrum of the Hot Jupiter WASP-17b”.

Teaching and Outreach

• Wales & West Spacefest, Invited Public Outreach Talk, Bristol Aerospace Museum (Mar 2026).
  • “Diving Through Exoplanet Atmospheres”.
• Institute of Physics (IoP) Volunteer, Wrexham Eisteddfod (Aug 2025).
  • 2 days volunteering with the IoP at the Welsh National Eisteddfod, Europe’s largest cultural event.
• Teaching Support Assistant, University of Bristol (Jan 2024 - Apr 2025).
  • PHYS10600 Stars & Planets, 1st Year undergraduate course - 70hrs/semester, ∼ 120-140 students.
• Pint of Science, Invited Public Outreach Talk, Bristol (May 2024).
  • “Looking on the bright side: mapping dayside exoplanet atmospheres with the James Webb Space Telescope”.
• EPQ Interview (Feb 2024).
  • “What aspect/s of US and UK research into exoplanets offers the most potential for future exoplanet research?”
• Filton Avenue Primary School Space Week Talk (Oct 2023).
  • “Exploring the Universe”.

Collaborations

• JWST-TST DREAMS: Member.
• Ariel Mission Consortium: Member.
• STARGATE: Member.
• BOWIE+: Member, Steering Committee Mar 2025 – Present.
• BOWIE-ALIGN: Member.
• JWST TRAPPIST-1 e/b Program: Member, Co-I.

Observing Programmes

PI Programmes

• JWST GO 5687: Unlocking New Dimensions in Eclipse Mapping with KELT-8b, PI: D. Valentine.
  • Small Programme, 26.1 hrs, 2 MIRI/LRS Eclipses.

Co-I Programmes

• JWST GO 8309: It’s (poly)Morphin’ Time! Solving the quartz quandary of WASP-17b, PIs: E. Mullens & S. Moran.
  • Small Programme, 37.8 hrs, 2+1 MIRI/LRS Transits+Eclipse.
• JWST GO 7849: Meeting their Match: Measuring Cloudy Hot Jupiter Counterparts to Understand the Silicate Cloud Regime with JWST/MIRI, PIs: S. Moran & L. Alderson.
  • Small Programme, 46.1 hrs, 4 MIRI/LRS Transits.
• JWST GO 6978: The dayside of the coolest ultra-hot Jupiter, KELT-20b, resolved with eclipse mapping, PIs: J. Wardenier, A. Bernier & M. Hammond.
  • Small Programme, 16.8 hrs, 1 NIRSpec/G395H Eclipse.
• JWST GO 6456/9256: Using stellar contamination proxy TRAPPIST-1 b to search for an atmosphere on TRAPPIST-1e, PIs: N. Allen & N. Espinoza.
  • Large Programme, 52.1+76.7 hrs, 15 NIRSpec/PRISM Transits.
• JWST GO 4105: Not Your Normal Neptune: Exploring the Chemical Processes at Play in HAT-P-11b, PIs: L. Alderson & C. Fairman.
  • Small Programme, 14.3 hrs, 2 NIRSpec/G395H Transits.

Publications

First Author

• JWST-TST DREAMS: 3D Eclipse Mapping of WASP-17b with NIRISS/SOSS, NIRSpec/G395H, and MIRI/LRS
  • Valentine, D., et al., in prep.
• Eclipse Mapping with Ariel: Future Prospects for a Population-Level Mapping Survey
  • Valentine, D., et al., 2025, MNRAS, 544, 3641.
• JWST-TST DREAMS: Non-Uniform Dayside Emission for WASP-17b from MIRI/LRS
  • Valentine, D., et al., 2024, AJ, 168, 123.

Co-Author

• BOWIE-ALIGN: Exploring degeneracies in the muted transmission spectrum of the aligned hot Jupiter NGTS-2b with NIRSpec/G395H
  • Fairman, C., et al., 2026, MNRAS, TBC, TBC.
• BOWIE-ALIGN: Sub-solar C/O ratio and metallicity atmosphere of the misaligned hot Jupiter HAT-P-30b
  • Claringbold, A., et al., 2026, MNRAS, 546, 143.
• JWST TRAPPIST-1 e/b Program: Motivation and first observations
  • Allen, N., et al., 2026, AJ, 171, 105.
• JWST-TST DREAMS: The Nightside Emission and Chemistry of WASP-17b
  • Lustig-Yaeger, J., et al., 2025, AJ, 994, L4.
• JWST-TST DREAMS: Sulfur dioxide in the atmosphere of the Neptune-mass planet HAT-P-26\,b from NIRSpec G395H transmission spectroscopy
  • Gressier, A., et al., 2025, AJ, 170, 292.
• BOWIE-ALIGN: weak spectral features in KELT-7b’s JWST NIRSpec/G395H transmission spectrum imply a high cloud deck or a low-metallicity atmosphere
  • Ahrer, E., et al., 2025, MNRAS, 543, 2442.
• JWST-TST DREAMS: Secondary Atmosphere Constraints for the Habitable Zone Planet TRAPPIST-1e
  • Glidden, A., et al., 2025, ApJ, 990, L53.
• JWST-TST DREAMS: NIRSpec/PRISM Transmission Spectroscopy of the Habitable Zone Planet TRAPPIST-1 e
  • Espinoza, N., et al., 2025, ApJ, 990, L52.
• BOWIE-ALIGN: Sub-stellar metallicity and carbon depletion in the aligned TrES-4b with JWST NIRSpec transmission spectroscopy
  • Meech, A., et al., 2025, MNRAS, 539, 1381.
• JWST-TST DREAMS: A Precise Water Abundance for Hot Jupiter WASP-17b from the NIRISS SOSS Transmission Spectrum
  • Louie, D., et al., 2025, AJ, 169, 86.
• JWST-TST DREAMS: A Super-Solar Metallicity in WASP-17 b’s Day-side Atmosphere from NIRISS SOSS Eclipse Spectroscopy
  • Gressier, A., et al., 2025, AJ, 169, 57.
• BOWIE-ALIGN: JWST reveals hints of planetesimal accretion and complex sulphur chemistry in the atmosphere of the misaligned hot Jupiter WASP-15b
  • Kirk, J., et al., 2025, MNRAS, 537, 3037.
• BOWIE-ALIGN: A JWST comparative survey of aligned vs misaligned hot Jupiters to test the dependence of atmospheric composition on migration history
  • Kirk, J., et al., 2024, RASTI, 3, 691.
• JWST-TST DREAMS: Quartz Clouds in the Atmosphere of WASP-17b
  • Grant, D., et al., 2023, ApJL, 956, L32.
• Exo-TiC/ExoTiC-MIRI: ExoTiC-MIRI v1.0.0
  • Grant, D., Valentine, D., Wakeford, H.R., 2023, Zenodo, v1.0.0.
• JWST-TST Proper Motions: I. High-Precision NIRISS Calibration and LMC Kinematics
  • Libralato, M., 2023, AJ, 950, 101.