Results 31 to 40 of about 1,189,468 (290)
Hypervelocity Collisions of Binary Stars at the Galactic Centre [PDF]
, 2006 Recent surveys have identified seven hypervelocity stars (HVSs) in the halo of the Milky Way. Most of these stars may have originated from the breakup of binary star systems by the nuclear black hole SgrA*.
Aarseth +38 more
core +2 more sources
The Close Binary Fraction of Solar-type Stars Is Strongly Anticorrelated with Metallicity [PDF]
Astrophysical Journal, 2018 There is now strong evidence that the close binary fraction (P < 104 days; a < 10 au) of solar-type stars (M1 ≈ 0.6–1.5 ) decreases significantly with metallicity. Although early surveys showed that the observed spectroscopic binary (SB) fractions in the
M. Moe, K. Kratter, C. Badenes
semanticscholar +1 more source
Galaxies, 2018 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 Astrophysical Journal, 2023 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
On the Lack of Circumbinary Planets Orbiting Isolated Binary Stars [PDF]
, 2018 We outline a mechanism that explains the observed lack of circumbinary planets (CBPs) via coupled stellar–tidal evolution of isolated binary stars.
David P. Fleming +4 more
semanticscholar +1 more source
Spectral models for binary products: Unifying subdwarfs and Wolf-Rayet stars as a sequence of stripped-envelope stars [PDF]
Astronomy & Astrophysics, 2018 Stars stripped of their hydrogen-rich envelope through interaction with a binary companion are generally not considered when accounting for ionizing radiation from stellar populations, despite the expectation that stripped stars emit hard ionizing ...
Y. Götberg +6 more
semanticscholar +1 more source
Spectroscopic Orbits of Subsystems in Multiple Stars. IX
The Astronomical Journal, 2023 New spectroscopic orbits of inner subsystems in 14 hierarchies are determined from long-term monitoring with the optical echelle spectrometer, CHIRON.
Andrei Tokovinin
doaj +1 more source
Observations of Binary Stars with the Differential Speckle Survey Instrument. VII. Measures from 2010 September to 2012 February at the WIYN Telescope [PDF]
, 2017 We report on speckle observations of binary stars carried out at the WIYN Telescope over the period from 2010 September through 2012 February, providing relative astrometry for 2521 observations of 883 objects, 856 of which are double stars and 27 of ...
E. Horch +11 more
semanticscholar +1 more source
The Astronomical Journal, 2023 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
ELLC - a fast, flexible light curve model for detached eclipsing binary stars and transiting exoplanets [PDF]
, 2016 Very high quality light curves are now available for thousands of detached eclipsing binary stars and transiting exoplanet systems as a result of surveys for transiting exoplanets and other large-scale photometric surveys.
P. Maxted
semanticscholar +1 more source