Results 11 to 20 of about 1,008,045 (157)
FM stars II: a Fourier view of pulsating binary stars - determining binary orbital parameters photometrically for highly eccentric cases [PDF]
Continuous and precise space-based photometry has made it possible to measure the orbital frequency modulation of pulsating stars in binary systems with extremely high precision over long time spans.
Kurtz, Donald W. +5 more
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The increase in discovered close binary central stars of planetary nebulae is leading to a sufficiently large sample to begin to make broader conclusions about the effect of close binary stars on common envelope evolution and planetary nebula formation ...
Todd Hillwig
doaj +1 more source
Nucleosynthesis of Binary-stripped Stars
The cosmic origin of the elements, the fundamental chemical building blocks of the universe, is still uncertain. Binary interactions play a key role in the evolution of many massive stars, yet their impact on chemical yields is poorly understood.
R. Farmer +4 more
doaj +1 more source
Radial-velocity measurements of subdwarf B stars [PDF]
Subdwarf B (sdB) stars are hot, subluminous stars which are thought to be core-helium burning with thin hydrogen envelopes. The mechanism by which these stars lose their envelopes has been controversial, but it has been argued that binary star ...
Copperwheat, CM +14 more
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Widely separated binary systems of very low-mass stars
In this paper we review some recent detections of wide binary brown dwarf systems and discuss them in the context of the multiplicity properties of very low-mass stars and brown ...
Phan-Bao, N., Reylé, C., Martín, E. L.
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We present orbital elements for 22 single-line binaries, nine of them studied for the first time, determined from a joint spectroscopic and astrometric solution.
Jennifer Anguita-Aguero +6 more
doaj +1 more source
Spectroscopic Orbits of Subsystems in Multiple Stars. IX
New spectroscopic orbits of inner subsystems in 14 hierarchies are determined from long-term monitoring with the optical echelle spectrometer, CHIRON.
Andrei Tokovinin
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We present a comprehensive multiband photometric and spectroscopic study of the G-type binary CW Cas. Analysis of its double-lined spectroscopic radial velocity curves yields a reliable mass ratio of q = 1.88(9).
Azizbek Matekov +13 more
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Probing the composition of sub-millisecond rotating compact stars by r-modes instability [PDF]
We investigate the implications of the r-modes instability on the composition of a compact star rotating at a sub-millisecond period. In particular, the only viable astrophysical scenario for such an object, wich might present inside the Low Mass X-ray ...
Giuseppe Pagliara +3 more
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Binary Star Orbits. VI. The Interferometric-spectroscopic Binary 73 Leo
Discordances in radial-velocity measurements of 73 Leonis, made more than a century ago, gave rise to the first suggestion that this fifth-magnitude star was a binary system, but it was 40 yr before an accurate investigation of the object commenced, and ...
Brian D. Mason +9 more
doaj +1 more source

