Results 21 to 30 of about 43,328 (216)
Gamma Cas Stars as Be+White Dwarf Binary Systems
The Astrophysical Journal Letters, 2022 The origin of the bright and hard X-ray emission flux among the γ Cas subgroup of B-emission line (Be) stars may be caused by gas accretion onto an orbiting white dwarf (WD) companion.
Douglas R. Gies +2 more
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A Spectroscopic Study of Binary Star Planetary Nebulae [PDF]
Symposium - International Astronomical Union, 1993 A comprehensive spectrophotometric survey of the central stars of planetary nebulae with known or suspected binary star nuclei (BSPN) is underway. The aims of this programme are: to determine the nature of the companion to the ionising star of the nebula; to estimate the spectroscopic distance from the spectral type and magnitude of the companion and ...
Jeremy R. Walsh +2 more
openaire +2 more sources
DOUBLE-LINED SPECTROSCOPIC BINARY STARS IN THE RAVE SURVEY [PDF]
The Astronomical Journal, 2010 We devise a new method for the detection of double-lined binary stars in a sample of the Radial Velocity Experiment (RAVE) survey spectra. The method is both tested against extensive simulations based on synthetic spectra, and compared to direct visual inspection of all RAVE spectra.
Siebert, Arnaud +21 more
openaire +7 more sources
The Astrophysical Journal, 2023 We present the results of our Hubble Space Telescope far-ultraviolet survey of the blue lurkers (BLs) in M67. We find evidence for two white dwarf (WD) companions among the BLs that are indicative of mass transfer from an evolved companion, one in WOCS ...
Andrew C. Nine +3 more
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Statistical properties of spectroscopic binary stars [PDF]
Astrophysics and Space Science, 1992 As part of a study of the mass-ratio distribution of spectroscopic binary stars, the statistical properties of the systems in theEighth Catalogue of the Orbital Elements of Spectroscopic Binary Stars, compiled by Battenet al. (1989), are investigated. Histograms are presented of the distributions of various parameters of the systems in the catalogue as
openaire +3 more sources
The Astrophysical Journal Supplement Series, 2023 Double-line spectroscopic binaries (SB2s) are a vital class of spectroscopic binaries for studying star formation and evolution. Searching for SB2s has been a hot topic in astronomy.
Zepeng Zheng +5 more
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AGB stars in binaries and their progeny [PDF]
, 1998 It is currently admitted that an AGB star in a binary system is likely to pollute its companion with carbon- and s-process-rich matter. After the AGB star has faded into an unconspicuous white dwarf, the polluted companion enters the zoo of stars with ...
Jorissen, A.
core +3 more sources
The New Version of the Binary Star Database (BDB)
Open Astronomy, 2012 The Binary star database contains data on about 100 000 stellar systems of multiplicity 2 to 22, taken from a large variety of published catalogues for all types of binary stars: visual, orbital, astrometric, interferometric, spectroscopic, photometric ...
Kaygorodov P. +4 more
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The Astronomical Journal, 2023 While secondary mass inferences based on single-lined spectroscopic binary (SB1) solutions are subject to $\sin i$ degeneracies, this degeneracy can be lifted through the observations of eclipses.
Stephen P. Schmidt +20 more
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Discovery of the Exceptionally Short Period Ultracool Dwarf Binary LP 413-53AB
The Astrophysical Journal Letters, 2023 We report the detection of large-amplitude, rapid radial velocity (RV) variations and line-splitting in high-resolution Keck/NIRSPEC spectra of the M9 dwarf LP 413-53. We attribute these features to binary motion.
Chih-Chun Hsu +2 more
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