Results 31 to 40 of about 127 (114)
The Potential of Multicolor Photometry for Pulsating Subdwarf B Stars
The Astrophysical Journal Supplement Series, 2005 Accepted for publication in The Astrophysical Journal Supplement ...
Randall, S. K. +3 more
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Rotation in sdB stars as revealed by stellar oscillations
Open Astronomy, 2018 An interesting opportunity offered by the detection of stellar oscillations is the possibility to infer the internal rotation rate of a star through the so-called rotational splittings. Such seismic measurements remained rather scarce for hot B subdwarf (
Charpinet Stephane +5 more
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The Astrophysical Journal Supplement SeriesWe design a convolutional neural network incorporating channel attention and spatial attention mechanisms to predict atmospheric parameters of hot subdwarfs.
Zhenxin Lei +6 more
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The empirical mass distribution of hot B subdwarfs: Implications for stellar evolution theory
EPJ Web of Conferences, 2013 Subdwarf B (sdB) stars are hot, compact, and evolved objects that form the very hot end of the horizontal branch, the so-called Extreme Horizontal Branch (EHB).
Green E.M. +4 more
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A search for pulsating blue stars in the vicinity of NGC 6791 using Kepler LC data
EPJ Web of Conferences, 2015 There are 18 known pulsating subdwarf B stars in the field of view of the Kepler spacecraft during phase one. The majority of them were observed in the short cadence mode and have been successfully investigated via asteroseismic methods.
Sowicka Paulina +2 more
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The detection of binary companions to subdwarf B stars [PDF]
Monthly Notices of the Royal Astronomical Society, 1998 Intermediate dispersion spectroscopy of a sample of 40 hot subdwarf B stars between 5500 and 9000A has been obtained. The sample includes a large fraction of targets which have been studied photometrically. Seven targets show strong lines arising from the infrared Ca ii triplet, the unequivocal signature of a cool companion.
C. S. Jeffery, D. L. Pollacco
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Atmospheric parameters of field subdwarf B stars
The Astrophysical Journal, 1994 High signal-to-noise ratio optical spectrophotometry of a sample of field subluminous B stars drawn largely from the Palomar Green ultraviolet-excess survey is analyzed with a new grid of model atmospheres and synthetic spectra. The stellar effective temperatures, surface gravities, and photospheric helium abundances are determined simultaneously from ...
Rex A. Saffer +3 more
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Progress in the study of pulsating subdwarf B stars [PDF]
Proceedings of the International Astronomical Union, 2015 AbstractDuring Kepler's main mission, nearly 20 pulsating subdwarf B (sdB: extreme horizontal branch stars) were discovered. Many of these stars were observed for three years, accumulating over 1.5 million observations. Only through these extended observations have we been able to identify pulsation modes, applying constraints for structure models ...
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Discovery of the first outbursting hot subdwarf binary: ZTF J0007+4804
Astronomy & AstrophysicsContext. Hot subdwarf binaries with white dwarf companions with orbital periods of less than two hours are progenitor candidates for massive single white dwarfs as well as a variety of thermonuclear explosions. Aims.
Stringer E. +12 more
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Resolving the pulsations of the subdwarf B star KPD 2109 + 4401 [PDF]
Monthly Notices of the Royal Astronomical Society, 2006 8 pages, 4 figures, 5 tables; Accepted for publication in ...
Zhou, A.-Y. +10 more
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