DK
D. Koester
astro-ph.SRastro-ph.EPastro-phastro-ph.GAastro-ph.HEastro-ph.IMAstronomy and astrophysicsExobiologyExtraterrestrial Environmentgr-qc
On Valency
published · living versionsW_r5msuqva·v1 · currentpublished
The evolutionary history of ultra-compact accreting binaries. II. HST spectroscopy of two eclipsing AM CVn stars
with W. Yu, A. F. Pala, T. Kupfer, B. T. Gänsicke +48
1 version
W_d7b7fmp9·v1published
W_dme29cca·v1published
W_ezyubk24·v1published
W_2grq76nw·v1published
W_n5cy4bea·v1published
W_9d2canyk·v1published
Preprints & journals
198 papers in the corpus · 1996–2026Discovery of a second-generation planet candidate accreting onto a white dwarf2610.07161v1 · Jamie T. Williams, Boris T. Gansicke, Nicholas C. Stone et al.2026 · 1 citationarXiv
The DESI Data Release 1 white dwarf catalogue2609.04314v1 · Andrew Swan, Boris T. Gansicke, Paula Izquierdo et al.2026 · 0 citationsarXiv
First planetesimals from DESI DR1: 12 highly metal-rich white dwarfs2607.14251v2 · Paula Izquierdo, Andrew Swan, Boris T. Gansicke et al.2026 · 0 citationsMonthly Notices of the Royal Astronomical Society, Volume 551, Issue 1, id.stag1353, 33 pp., September 2026
I Can Do It With A Broken Planetesimal: Characterising the planetary debris in heavily polluted cool white dwarfs2607.12070v1 · Anna-Maria Cutolo, Boris T. Gansicke, Andrew Swan et al.2026 · 0 citationsMon Not R Astron Soc (2026)
White dwarfs within 13 pc: insights from ultraviolet spectroscopy2607.06357v2 · Mairi W. O'Brien, Pier-Emmanuel Tremblay, Boris T. Gansicke et al.2026 · 1 citationMon Not R Astron Soc (2026)
White Dwarf Classification of DESI DR1 Spectra12607.00430v1 · Larissa L. Amorim, Weligton.N. Costa Junior, S. O. Kepler et al.2026 · 0 citationsarXiv
High Velocity Circumstellar Gas Orbiting a White Dwarf Star2603.02309v1 · B. Zuckerman, 'Erika Le Bourdais, Beth L. Klein et al.2026 · 2 citationsarXiv
Discovery of a runaway star likely ejected by a Type Iax Supernova2602.23900v1 · A. Bhat, M. Hollands, M. Dorsch et al.2026 · 2 citationsarXiv
Re-evaluating Lyman wing opacities and the low mass-problem in cool white dwarfs2511.00151v1 · Snehalata Sahu, Pier-Emmanuel Tremblay, Detlev Koester et al.2025 · 3 citationsarXiv
New ultralight scalar particles and the mass-radius relation of white dwarfs -- the important role of Sirius B2510.06312v2 · Kai Bartnick, Detlev Koester, Rolf-Peter Kudritzki et al.2025 · 4 citationsarXiv
Discovery of an icy and nitrogen-rich extrasolar planetesimal2509.13422v1 · Snehalata Sahu, Boris T. Gansicke, Jamie T. Williams et al.2025 · 5 citationsarXiv
White Dwarfs with Infrared Excess in the HET Dark Energy Experiment2509.12116v1 · Rudy A. Morales, Barbara G. Castanheira, Jayden Blanchard et al.2025 · 1 citationarXiv
Double White Dwarf Binaries in SDSS-V DR19 : The discovery of a rare DA+DQ white dwarf binary with 31 hour orbital period2507.11618v1 · Gautham Adamane Pallathadka, Vedant Chandra, Boris T. Gansicke et al.2025 · 0 citationsarXiv
Measurements of three exo-planetesimal compositions: a planetary core, a chondritic body, and an icy Kuiper belt analogue2506.19931v1 · Jamie T. Williams, Boris T. Gansicke, Snehalata Sahu et al.2025 · 9 citationsarXiv
The dearth of high-mass hydrogen-atmosphere metal-polluted white dwarfs within 40 pc2503.09734v1 · Tim Cunningham, Pier-Emmanuel Tremblay, Mairi O'Brien et al.2025 · 9 citationsarXiv
Characterizing planetary material accreted by cool helium atmosphere white dwarfs using an exponentially decaying disc model2503.05345v2 · Mairi W. O'Brien, Pier-Emmanuel Tremblay, Beth L. Klein et al.2025 · 5 citationsMonthly Notices of the Royal Astronomical Society, Volume 539, Issue 1, May 2025, Pages 171-184
Testing the mass-radius relation of white dwarfs in common proper motion pairs I.Hydrogen-dominated atmospheres2502.01285v1 · Roberto Raddi, Alberto Rebassa-Mansergas, Santiago Torres et al.2025 · 8 citationsA&A 695, A131 (2025)
A hot white dwarf merger remnant revealed by an ultraviolet detection of carbon.40979883 · Sahu, Snehalata, Bédard, Antoine, Gänsicke, Boris T et al.2025 · 5 citationsNature astronomy. 2025;9(9):1347-1355
ESPRESSO observations of the debris-accreting white dwarf WD\,0141--6752412.06920v2 · Sergio H. Ramirez, Boris T. Gaensicke, Detlev Koester et al.2024 · 3 citationsarXiv
Constraints on Remnant Planetary Systems as a Function of Main-Sequence Mass with HST/COS2410.06335v1 · Lou Baya Ould Rouis, J.J. Hermes, Boris T. Gansicke et al.2024 · 26 citationsarXiv
The white dwarf binary pathways survey -- X. Gaia orbits for known UV excess binaries2403.07985v1 · J. A. Garbutt, S. G. Parsons, O. Toloza et al.2024 · 16 citationsarXiv
The DESI Early Data Release White Dwarf Catalogue2402.18641v1 · Christopher J. Manser, Paula Izquierdo, Boris T. Gansicke et al.2024 · 21 citationsarXivon Valency
The 40 pc sample of white dwarfs from Gaia2312.02735v2 · Mairi W. O'Brien, P.-E. Tremblay, B. L. Klein et al.2023 · 95 citationsMNRAS 527, 3 (2024) 8687-8705
WD0141-675: A case study on how to follow-up astrometric planet candidates around white dwarfs2310.05778v1 · Laura K. Rogers, John Debes, Richard J. Anslow et al.2023 · 0 citationsarXiv
Planetesimals at DZ stars I: chondritic compositions and a massive accretion event2309.06467v1 · Andrew Swan, Jay Farihi, Carl Melis et al.2023 · 25 citationsarXiv
An HST COS ultra-violet spectroscopic survey of 311 DA white dwarfs.I. Fundamental parameters and comparative studies2309.00239v2 · Snehalata Sahu, Boris T. Gaensicke, Pier-Emmanuel Tremblay et al.2023 · 0 citationsarXiv
A hidden population of white dwarfs with atmospheric carbon traces in the Gaia bifurcation2305.02110v1 · Maria Camisassa, Santiago Torres, Mark Hollands et al.2023 · 26 citationsA&A 674, A213 (2023)
Systematic uncertainties in the characterisation of helium-dominated metal-polluted white dwarf atmospheres2301.09670v1 · Paula Izquierdo, Boris T. Gansicke, Pablo Rodr'iguez-Gil et al.2023 · 15 citationsarXiv
The White Dwarf Binary Pathways Survey -- IX. Three long period white dwarf plus subgiant binaries2211.08440v1 · S. G. Parsons, M. S. Hernandez, O. Toloza et al.2022 · 21 citationsarXiv
Asynchronous accretion can mimic diverse white dwarf pollutants II: water content2211.05113v1 · Marc G. Brouwers, Andrew M. Buchan, Amy Bonsor et al.2022 · 19 citationsarXiv
Unusual Abundances from Planetary System Material Polluting the White Dwarf G238-442211.02673v1 · Ted M Johnson, Beth L. Klein, D. Koester et al.2022 · 25 citationsarXiv
Pulsating H-deficient WDs and pre-WDs observed with TESS: V. Discovery of two new DBV pulsators, WD J152738.4-450207.4 and WD 1708-871, and asteroseismology of the already known DBV stars PG 1351+489, EC 20058-5234, and EC 04207-47482210.05486v1 · Alejandro H. C'orsico, Murat Uzundag, S. O. Kepler et al.2022 · 10 citationsarXiv
white dwarfs within 40 pc III: spectroscopic observations of new candidates in the southern hemisphere2210.01608v2 · Mairi W. O'Brien, P.-E. Tremblay, N. P. Gentile Fusillo et al.2022 · 53 citationsarXiv
The C/N ratio from FUV spectroscopy as a constraint upon the past evolution of HS0218+32292209.06873v1 · O. Toloza, Boris T. Gaensicke, Laura M. Guzman-Rincon et al.2022 · 7 citationsarXiv
Spectral analysis of ultra-cool white dwarfs polluted by planetary debris2206.05258v2 · Abbigail K. Elms, Pier-Emmanuel Tremblay, Boris T. Gansicke et al.2022 · 38 citationsarXiv
Testing White Dwarf Age Estimates using Wide Double White Dwarf Binaries from Gaia EDR32206.00025v1 · Tyler M. Heintz, J.J. Hermes, Kareem El-Badry et al.2022 · 35 citationsarXiv
The evolution of ultra-massive carbon oxygen white dwarfs2202.03495v2 · Mar'ia E. Camisassa, Leandro G. Althaus, Detlev Koester et al.2022 · 28 citationsarXiv
Discovery of 74 new bright ZZ Ceti stars in the first three years of TESS2201.04158v1 · A. D. Romero, S. O. Kepler, J. J. Hermes et al.2022 · 45 citationsarXiv
Spectral analysis of cool white dwarfs accreting from planetary systems: from the UV to the optical2112.08887v1 · Mark A. Hollands, Pier-Emmanuel Tremblay, Boris T. Gansicke et al.2021 · 19 citationsarXiv
Pulsating hydrogen-deficient white dwarfs and pre-white dwarfs observed with {\it TESS}: III. Asteroseismology of the DBV star GD 3582111.15551v1 · Alejandro H. C'orsico, Murat Uzundag, S. O. Kepler et al.2021 · 15 citationsA&A 659, A30 (2022)
Planets or asteroids? A geochemical method to constrain the masses of White Dwarf pollutants2111.08779v1 · Andrew M. Buchan, Amy Bonsor, Oliver Shorttle et al.2021 · 32 citationsarXiv
Kinematic properties of white dwarfs. Galactic orbital parameters and age-velocity dispersion relation2111.01145v2 · R. Raddi, S. Torres, A. Rebassa-Mansergas et al.2021 · 35 citationsA&A 658, A22 (2022)
Discovery of a young pre-intermediate polar2108.11414v1 · David J. Wilson, Odette Toloza, John D. Landstreet et al.2021 · 10 citationsarXiv
White dwarf and subdwarf stars in the Sloan Digital Sky Survey Data Release 162108.10915v1 · S. O. Kepler, Detlev Koester, Ingrid Pelisoli et al.2021 · 40 citationsarXiv
Constraining the solar neighbourhood age-metallicity relation from white dwarf-main sequence binaries2105.13379v1 · A. Rebassa-Mansergas, J. Maldonado, R. Raddi et al.2021 · 39 citationsarXiv
Bayesian constraints on the origin and geology of exo-planetary material using a population of externally polluted white dwarfs2103.05713v1 · John H. D. Harrison, Amy Bonsor, Mihkel Kama et al.2021 · 44 citationsarXiv
Horizontal spreading of planetary debris accreted by white dwarfs2102.09564v1 · Tim Cunningham, Pier-Emmanuel Tremblay, Evan B. Bauer et al.2021 · 49 citationsarXiv
Alkali metals in white dwarf atmospheres as tracers of ancient planetary crusts2101.01225v2 · Mark A. Hollands, Pier-Emmanuel Tremblay, Boris T. Gansicke et al.2021 · 53 citationsarXiv
GD424 -- a helium-atmosphere white dwarf with a large amount of trace hydrogen in the process of digesting a rocky planetesimal2012.12957v1 · Paula Izquierdo, Odette Toloza, Boris T. Gansicke et al.2020 · 28 citationsarXiv
Serendipitous discovery of a dusty disc around WDJ181417.84-735459.832012.05731v2 · E. Gonz'alez Egea, R. Raddi, D. Koester et al.2020 · 6 citationsarXiv
Career total: at least 656 works. 198 are in this corpus.Showing the 50 most recent.
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