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Institute of Astronomy



I am interested in the end state of planetary systems. I specifically look at polluted white dwarf systems to understand the stages leading up to extrasolar planetesimals being engulfed by their host star. I also use observations of these systems to understand the bulk composition of exoplanetary material.


2022 - Present: Research Associate, University of Cambridge

2016 - 2022: PhD Student in Astronomy, University of Cambridge

2012 - 2016: MSci in Physics, University of Bristol


Key publications: 

Seven white dwarfs with circumstellar gas discs I: white dwarf parameters and accreted planetary abundances, Rogers, L. K.; Bonsor, A.; Xu, S.; Dufour, P.; Klein, B. L.; Buchan, A.; Hodgkin, S.; Hardy, F.; Kissler-Patig, M.; Melis, C.; Weinberger, A. J.; Zuckerman, B., 2024, MNRAS, 527, 6038  Link to publication

WD 0141-675: a case study on how to follow-up astrometric planet candidates around white dwarfs, Rogers L.K., Debes J., Anslow R.J., Bonsor A., Casewell S.L., Dos Santos L.A., Dufour P., et al., 2024, MNRAS, 527, 977 Link to publication

Near-infrared variability in dusty white dwarfs: tracing the accretion of planetary material, Rogers, L.K. , Xu, S., Bonsor, A., Hodgkin, S., Su, K.Y., von Hippel, T. and Jura, M., 2020., MNRAS, 494(2), p.2861. Link to publication


Other publications: 

Modeling Circumstellar Gas Emission around a White Dwarf Using CLOUDY, Xu S., Yeh S., Rogers L.K., et al., 2024, AJ, 167, 248. Link to publication 

Asynchronous accretion can mimic diverse white dwarf pollutants II: water content, Brouwers M.G., Buchan A.M., Bonsor A., Malamud U., Lynch E., Rogers L.K., Koester D., 2023, MNRAS, 519, 2663. Link to publication

Infrared Excesses Around Bright White Dwarfs from Gaia and unWISE. II, Lai S., Dennihy E., ..., Rogers L.K., et al., 2021, ApJ, 920, 156. Link to publication

Host-star and exoplanet compositions: a pilot study using a wide binary with a polluted white dwarf, Bonsor A., Jofre P., Shorttle O., Rogers L.K., Xu S., Melis C., 2021, MNRAS, 503, 1877. Link to publication

Near-infrared observations of dusty white dwarfs, Rogers, L.K. , Xu, S., Bonsor, A., Hodgkin, S., Su, K.Y., von Hippel, T. and Jura, M., 2020, IAU. Proceedings of the International Astronomical Union, 15(S357), 33-36. Link to publication

Serendipitous discovery of a dusty disc around WDJ181417.84-735459.83 , González Egea, E., Raddi, R., Koester D., Rogers, L.K., et al., 2021, MNRAS, 501, 3916. Link to publication

Exocomets from a Solar System Perspective , Strøm, P. A., Bodewits, D., ... Rogers, L.K., et al., 2020., PASP, 132(1016), 101001. Link to publication

Infrared Variability of Two Dusty White Dwarfs , Xu, S., Su, K.Y., Rogers, L.K., et al., 2018, ApJ, 866(2), p.108. Link to publication

Dust Production and Depletion in Evolved Planetary Systems, Farihi, J., van Lieshout, R., ... Rogers, L.K., et al., 2018, MNRAS, 481(2), p.2601. Link to publication 

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