Results 41 to 50 of about 276,909 (151)
The population of hot subdwarf stars studied withGaia [PDF]
Astronomy & Astrophysics, 2020 In light of substantial new discoveries of hot subdwarfs by ongoing spectroscopic surveys and the availability of new all-sky data from ground-based photometric surveys and theGaiamission Data Release 2, we compiled an updated catalogue of the known hot ...
Stephan Geier
semanticscholar +1 more source
Flare Hunting in Hot Subdwarf and White Dwarf Stars from Cycles 1–5 of TESS Photometry [PDF]
Astrophysical Journal Supplement SeriesStellar flares are critical phenomena on stellar surfaces, which are closely tied to stellar magnetism. While extensively studied in main-sequence (MS) stars, their occurrence in evolved compact stars, specifically hot subdwarfs and white dwarfs (WDs ...
Keyu Xing +11 more
semanticscholar +1 more source
SuperWASP Lightcurves of Subdwarf Stars [PDF]
, 2008 SuperWASP is a wide angle survey for transiting hot-Jupiter exoplanets around bright ...
Maxted, P. F. L. +4 more
openaire +1 more source
Radial velocity measurements of Subdwarf B stars [PDF]
, 2011 MNRAS accepted. 22 pages with 10 tables and 4 figures. Revised to correct the object name of the helium-rich sdB mentioned in the last paragraph of section 4 ...
Copperwheat, C. M. +4 more
openaire +2 more sources
THE SOLAR NEIGHBORHOOD. XXIV. PARALLAX RESULTS FROM THE CTIOPI 0.9 m PROGRAM: STARS WITH μ ⩾ 1.″0 yr−1 (MOTION SAMPLE) AND SUBDWARFS [PDF]
, 2011 We present 41 trigonometric parallaxes of 37 stellar systems, most of which have proper motions greater than 1.″0 yr−1. These are the first trigonometric parallaxes for 24 systems.
W. Jao +5 more
semanticscholar +1 more source
Mass-loss predictions for Subdwarf B stars [PDF]
Astrophysics and Space Science, 2004 8 pages, 1 figure, to appear in "Extreme Horizontal Branch Stars and Related Objects", Astrophysics and Space Science, Kluwer, ed.
openaire +2 more sources
The origin of subdwarf B stars
Bulletin de la Société Royale des Sciences de Liège, 2023 The origin of subdwarf B stars (sdBs) is unclear. Different formation channels are proposed including: close-binary evolution, helium-mixing on the red giant branch and the hot flasher scenario. Circumstantial evidence exists that sdBs can result from single star evolution in high metallicity populations.
Ralf Napiwotzki, Callum Aubrey
openaire +1 more source
Asteroseismology of hot B subdwarf stars [PDF]
EPJ Web of Conferences, 2013 Non-radial pulsations in Extreme Horizontal Branch stars (also known as hot B subdwarfs or sdB stars) offer strong opportunities to study, through asteroseismology, the structure and internal dynamics of stars in this intermediate stage of stellar evolution. Most sdB stars directly descend from former red giants and are expected to evolve straight into
Charpinet, Stéphane +5 more
openaire +3 more sources
Population synthesis of Galactic subdwarf B stars [PDF]
Astrophysics and Space Science, 2010 Appeared in 2010 in Ap& ...
openaire +4 more sources
Envelope loss of RGB/AGB stars and the formation of hot subdwarfs
, 2013 Low mass stars may lose their envelopes in the first giant branch (RGB) or the asymptotic giant branch (AGB) via envelope ejection (i.e. superwind). The envelope loss of AGB stars leads to the formation of carbon-oxygen (CO) white dwarfs (WDs), while the
Z. Han, X.-F. Chen
semanticscholar +1 more source