Results 61 to 70 of about 127 (114)
The Astronomical JournalTrumpler 5 is a populous, intermediate-age (∼3 Gyr), metal-poor ([Fe/H] ∼ −0.4) open cluster, located at a distance of approximately ∼3050 pc. This is a well-studied cluster for its broadened main-sequence (MS) and blue straggler star (BSS) population ...
Komal Chand, Anju Panthi, Kaushar Vaidya
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A Search for High-frequency Oscillations in TESS Cycle 7
The Astrophysical Journal Supplement SeriesHigh-quality, short-cadence photometry from TESS enables the detection of rapid oscillators with unprecedented sensitivity. In this work, we conduct a homogeneous search for high-frequency variability using 20 s cadence light curves from TESS Cycle 7 ...
Guanda Huang +4 more
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Astronomy & AstrophysicsContext. Hot subdwarf B (sdB) stars in close binaries with white dwarf (WD) companions are potential progenitors of double-detonation thermonuclear supernovae.
Hernandez Mercedes S. +3 more
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Wide B-type hot subdwarf binaries
Astronomy & AstrophysicsContext. Long-period binary systems containing a B-type hot subdwarf (sdB) and a main sequence (MS) companion are thought to originate from binary interactions involving stable mass transfer from the red giant, which is the progenitor of the sdB, to the ...
Molina Francisco +3 more
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The evolution of a hot subdwarf: observations of the pulsating subdwarf B star Feige~48
, 2003 Since pulsating subdwarf B (sdBV or EC14026) stars were first discovered (Kilkenny et al, 1997), observational efforts have tried to realize their potential for constraining the interior physics of extreme horizontal branch (EHB) stars. Difficulties encountered along the way include uncertain mode identifications and a lack of stable pulsation mode ...
Reed, M. D. +2 more
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The Astrophysical JournalMass transfer between nondegenerate stars is a fundamental but still poorly understood process in binary evolution. The commonly used rotationally limited accretion prescription in detailed binary evolution simulations that account for stellar rotation ...
Zepei Xing +5 more
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Discovery of diffuse optical emission lines from the inner Galaxy: Evidence for LI(N)ER-like gas. [PDF]
Sci Adv, 2020 Krishnarao D, Benjamin RA, Haffner LM.
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Iron and nickel diffusion in subdwarf B stars
, 2011 6 pages, 5 figures, to appear in ASP Conference Series, the 61st Fujihara Seminar: Progress in solar/stellar physics with helio- and ...
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A comprehensive search for hot subdwarf stars using Gaia and TESS
Astronomy & AstrophysicsHot subdwarf B (sdB) stars are evolved, subluminous, helium-burning stars that most likely form when red giant stars loose their hydrogen envelope via interactions with close companions. They play an important role in our understanding of binary evolution, stellar atmospheres, and interiors.
Murat Uzundag +7 more
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Detection of the Progenitors of Be X-ray Binaries. [PDF]
Proc Int Astron Union, 2018 Gies D, Wang L, Peters G.
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