RØ
Roy Østensen
astro-ph.SRastro-phastro-ph.EPastro-ph.GAastro-ph.IMastro-ph.CO
On Valency
published · living versionsW_2ksyjvsh·v1 · currentpublished
HE 0430-2457: a post merger extremely low-mass pre-white dwarf in a wide binary posing as an extreme horizontal branch star
with Joris Vos, Monica Zorotovic, Maja Vučković, Matthias R. Schreiber
1 version
W_3xrbuxdt·v1published
Preprints & journals
118 papers in the corpus · 2000–2025K2 observations of five pulsating subdwarf B stars with white dwarf companions2506.05033v1 · M.D. Reed, A.S. Baran, J.H. Telting et al.2025 · 1 citationarXiv
A 500 pc volume-limited sample of hot subluminous stars I. Space density, scale height, and population properties2403.15513v1 · H. Dawson, S. Geier, U. Heber et al.2024 · 0 citationsarXiv
Short-period pulsating hot-subdwarf stars observed by TESS II. Northern ecliptic hemisphere2403.02384v1 · A.S. Baran, S. Charpinet, R.H. \Ostensen et al.2024 · 1 citationarXiv
MELCHIORS: The Mercator Library of High Resolution Stellar Spectroscopy2311.02705v1 · P. Royer, T. Merle, K. Dsilva et al.2023 · 25 citationsA&A 681, A107 (2024)
Short-period pulsating hot-subdwarf stars observed by TESS I. Southern ecliptic hemisphere2211.09137v1 · A.S. Baran, V. Van Grootel, R.H. Ostensen et al.2022 · 26 citationsA&A 669, A48 (2023)
Filling the gap between synchronized and non-synchronized sdBs in short-period sdBV+dM binaries with TESS: TIC 137608661, a new system with a well defined rotational splitting2201.06559v1 · Roberto Silvotti, P'eter N'emeth, John H. Telting et al.2022 · 19 citationsarXiv
Pulsating subdwarf B stars in the oldest open cluster NGC67912111.09873v1 · S.Sanjayan, A.S.Baran, J.Ostrowski et al.2021 · 5 citationsMonthly Notices of the Royal Astronomical Society Volume 509 Issue 1 January 2022 Pages 763 777
Orbital and atmospheric parameters of two wide O-type subdwarf binaries: BD$-^{\rm{o}}$162 and Feige 802110.14339v1 · Francisco Molina, Joris Vos, P'eter N'emeth et al.2021 · 13 citationsA&A 658, A122 (2022)
Looking into the cradle of the grave: J22564-5910, a young post-merger hot subdwarf?2106.03363v1 · Joris Vos, Ingrid Pelisoli, Jan Budaj et al.2021 · 14 citationsA&A 655, A43 (2021)
Asteroseismic analysis of variable hot subdwarf stars observed with TESS I. The mean g-mode period spacings in hot subdwarf B stars2105.15137v1 · Murat Uzundag, Maja Vuckovic, Peter Nemeth et al.2021 · 26 citationsA&A 651, A121 (2021)
Space observations of AA Doradus provide consistent mass determinations. New HW-Vir systems observed with TESS2105.01074v1 · A.S. Baran, R.H. \Ostensen, U. Heber et al.2021 · 8 citations2021, MNRAS, 503, 2157
A transit survey to search for planets around hot subdwarfs: I. methods and performance tests on light curves from Kepler, K2, TESS, and CHEOPS2104.10462v1 · V. Van Grootel, F. J. Pozuelos, A. Thuillier et al.2021 · 32 citationsA&A 650, A205 (2021)
EPIC 216747137: a new HW Vir eclipsing binary with a massive sdOB primary and a low-mass M-dwarf companion2010.13524v1 · R. Silvotti, V. Schaffenroth, U. Heber et al.2020 · 10 citationsarXiv
PHL 417: a zirconium-rich pulsating hot subdwarf (V366 Aquarid) discovered in K2 data2010.02978v1 · Roy \Ostensen, C. Simon Jeffery, Hideyuki Saio et al.2020 · 15 citationsarXiv
The EXOTIME project: Signals in the $ O-C $ diagrams of the rapidly pulsating subdwarfs DW Lyn, V1636 Ori, QQ Vir, and V541 Hya2004.04764v1 · F. Mackebrandt, S. Schuh, R. Silvotti et al.2020 · 5 citationsA&A 638, A108 (2020)
No close companions to a sample of bright sdB stars2002.04545v1 · Roberto Silvotti, Roy H. Ostensen, John H. Telting2020 · 7 citationsarXiv
TESS first look at evolved compact pulsators : Discovery and asteroseismic probing of the g-mode hot B subdwarf pulsator EC 21494-70181910.04234v2 · S. Charpinet, P. Brassard, G. Fontaine et al.2019 · 37 citationsA&A 632, A90 (2019)
High-degree gravity modes in the single sdB star HD45391908.03558v1 · R. Silvotti, M. Uzundag, A.S. Baran et al.2019 · 15 citationsarXiv
KIC 10001893: A pulsating sdB star with multiple trapped modes1812.05675v1 · M. Uzundag, A.S. Baran, R.H. \Ostensen et al.2018 · 17 citationsarXiv
Unravelling the baffling mystery of the ultrahot wind phenomenon in white dwarfs1811.02922v1 · Nicole Reindl, M. Bainbridge, N. Przybilla et al.2018 · 24 citations2019, MNRAS Letters, 482, L93
The orbital period -- mass ratio relation of wide sdB+MS binaries and its application to the stability of RLOF1811.00285v1 · Joris Vos, Maja Vuckovi'c, Xuefei Chen et al.2018 · 56 citationsarXiv
Discovery of two bright DO-type white dwarfs1807.06584v1 · Nicole Reindl, Stephan Geier, Roy H. \Ostensen2018 · 6 citationsarXiv
HE 0430-2457: a post merger extremely low-mass pre-white dwarf in a wide binary posing as an extreme horizontal branch star1804.00862v1 · Joris Vos, Monica Zorotovic, Maja Vuckovi'c et al.2018 · 25 citationsarXivon Valency
The sdB pulsating star V391 Peg and its putative giant planet revisited after 13 years of time-series photometric data1711.10942v1 · R. Silvotti, S. Schuh, S.-L. Kim et al.2017 · 18 citationsA&A 611, A85 (2018)
Meet the family - the catalog of known hot subdwarf stars1711.01856v1 · Stephan Geier, Roy H. \Ostensen, Peter Nemeth et al.2017 · 20 citationsarXiv
Evolutionary Constraints on the Long-period Subdwarf B Binary PG 1018-0471710.07327v1 · J. Deca, J. Vos, P. N'emeth et al.2017 · 9 citationsarXiv
Composite hot-subdwarf binaries -- I. The spectroscopically confirmed sdB sample1708.07340v1 · Joris Vos, P'eter N'emeth, Maja Vuckovi'c et al.2017 · 56 citationsarXiv
The orbits of subdwarf-B + main-sequence binaries: III. The period - eccentricity distribution1706.02286v1 · Joris Vos, Roy H. \Ostensen, Maja Vuckovic et al.2017 · 70 citationsA&A 605, A109 (2017)
Three new pulsating sdB stars discovered with SuperWASP1701.02761v1 · Daniel L. Holdsworth, Roy H. \Ostensen, Barry Smalley et al.2017 · 18 citationsarXiv
The population of hot subdwarf stars studied with Gaia I. The catalogue of known hot subdwarf stars1612.02995v1 · S. Geier, R. H. \Ostensen, P. Nemeth et al.2016 · 88 citationsarXivon Valency
Discovery of a variable lead-rich hot subdwarf: UVO 0825+151611.01616v1 · C. S. Jeffery, A. S. Baran, N. T. Behara et al.2016 · 52 citationsarXiv
A pulsation analysis of K2 observations of the subdwarf B star PG1142-037 during Campaign 1: A subsynchronously rotating ellipsoidal variable1602.06412v1 · M.D. Reed, A.S. Baran, R.H. Ostensen et al.2016 · 20 citationsarXiv
RV variable, hot post-AGB stars from the MUCHFUSS project - Classification, atmospheric parameters, formation scenarios1601.00874v1 · N. Reindl, S. Geier, T. Kupfer et al.2016 · 31 citationsA&A 587, A101 (2016)
Seismic evidence for a weak radial differential rotation in intermediate-mass core helium burning stars1506.02704v1 · S. Deheuvels, J. Ballot, P.G. Beck et al.2015 · 172 citationsA&A 580, A96 (2015)
Testing eccentricity pumping mechanisms to model eccentric long period sdB binaries with MESA1505.03293v1 · Joris Vos, Roy \Ostensen, Pablo Marchant et al.2015 · 66 citationsA&A, 2015, 579, A49
The discovery of differential radial rotation in the pulsating subdwarf B star KIC 35277511503.02225v1 · H. M. Foster, M. D. Reed, J. H. Telting et al.2015 · 39 citationsarXiv
The catalogue of radial velocity variable hot subluminous stars from the MUCHFUSS project1502.04086v1 · S. Geier, T. Kupfer, U. Heber et al.2015 · 60 citationsarXiv
The population of white dwarf binaries with hot subdwarf companions1501.07760v1 · S. Geier, T. Kupfer, U. Heber et al.2015 · 2 citationsarXiv
Kepler detection of a new extreme planetary system orbiting the subdwarf-B pulsator KIC100018931409.6975v1 · R. Silvotti, S. Charpinet, E. Green et al.2014 · 45 citationsA&A 570, A130 (2014)
KIC7668647: a 14 day beaming sdB+WD binary with a pulsating subdwarf1409.2345v1 · J.H. Telting, A.S. Baran, P. Nemeth et al.2014 · 47 citationsA&A 570, A129 (2014)
The blue-edge problem of the V1093 Her instability strip revisited using evolutionary models with atomic diffusion1409.1604v1 · S. Bloemen, Haili Hu, C. Aerts et al.2014 · 27 citationsarXiv
Seven-Period Asteroseismic Fit of the Kepler DBV1408.4496v1 · Agnes Kim, Roy Ostensen, J.J. Hermes et al.2014 · 0 citationsarXiv
Detection of solar-like oscillations in the bright red giant stars Psc and Tau from a 190-day high-precision spectroscopic multisite campaign1407.6352v1 · P. G. Beck, E. Kambe, M. Hillen et al.2014 · 24 citationsarXiv
Asteroseismology revealing trapped modes in KIC 10553698A1406.6941v1 · R. H. \Ostensen, J. H. Telting, M. D. Reed et al.2014 · 55 citationsA&A 569, A15 (2014)
Monitoring evolved stars for binarity with the HERMES spectrograph1403.2287v1 · N. Gorlova, H. Van Winckel, J. Vos et al.2014 · 22 citationsarXiv
Orbital solutions of eight close sdB binaries and constraints on the nature of the unseen companions1401.0446v1 · S. Geier, R. H. Oestensen, U. Heber et al.2014 · 25 citationsarXiv
Pulsating red giant stars in eccentric binary systems discovered from Kepler space-based photometry1312.4500v1 · P. G. Beck, K. Hambleton, J. Vos et al.2013 · 136 citationsarXiv
A He-rich g-mode pulsator on the BHB1310.2553v1 · Roy H. \Ostensen2013 · 0 citationsarXiv
Binaries discovered by the MUCHFUSS project; FBS 0117+396: An sdB+dM binary with a pulsating primary1310.2209v1 · R. H. \Ostensen, S. Geier, V. Schaffenroth et al.2013 · 22 citationsarXiv
MAIA, a three-channel imager for asteroseismology: instrument design1310.2266v1 · Gert Raskin, Steven Bloemen, Johan Morren et al.2013 · 12 citationsarXiv
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