Results 41 to 50 of about 97,978 (332)
Interactions of binary stars [PDF]
Nature, 1981 Close Binary Stars: Observation and Interpretation. Edited by M. J. Plavec and R. K. Ulrich. Pp.598. (Reidel: 1980.) Hardback Dfl.130, $68.50; paperback Dfl.60, $31.50.
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Binary interactions on the calibrations of star formation rate [PDF]
Monthly Notices of the Royal Astronomical Society, 2012 Using the evolutionary population synthesis (EPS) models with and without binary interactions (BIs), we present L_Ha, L_[OII], L_{i,UV} and L_FIR for Burst, S0, Sa-Sd and Irr galaxies, and present the calibrations of star formation rate (SFR) in terms of these diagnostics.
Yu Zhang +4 more
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Dynamically Forming Extremely Low-mass White Dwarf Binaries in Wide Orbits
The Astrophysical Journal, 2023 The detection of a 0.2 M _⊙ extremely low-mass white dwarf (EW) in a wide orbit ( P _orb ≈ 450 days) with a 1.1 M _⊙ main-sequence companion, KIC 8145411, challenges our current understanding of how EWs form. The traditional channel for EW formation, via
Ambreesh Khurana +2 more
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A Mini Atlas of H-Band Spectra of Southern Symbiotic Stars
Galaxies, 2023 Symbiotic stars are interacting binary systems composed of an evolved star (generally a late-type red giant) and a degenerate or dwarf companion in orbit close enough for mass transfer to occur. Understanding the status of the late-type star is important
Paula Esther Marchiano +6 more
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Adiabatic Mass Loss in Binary Stars. III. From the Base of the Red Giant Branch to the Tip of the Asymptotic Giant Branch [PDF]
Astrophysical Journal, 2020 The distinguishing feature of the evolution of close binary stars is the role played by the mass exchange between the component stars. Whether or not the mass transfer is dynamically stable is one of the essential questions in binary evolution.
H. Ge +3 more
semanticscholar +1 more source
Eta Carinae in the Context of the Most Massive Stars [PDF]
, 2009 Eta Car, with its historical outbursts, visible ejecta and massive, variable winds, continues to challenge both observers and modelers. In just the past five years over 100 papers have been published on this fascinating object.
Damineli, Augusto, Gull, Theodore R.
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Binary Interactions in Star Clusters [PDF]
Symposium - International Astronomical Union, 1988 Over the past decade, a very considerable amount of effort in stellar dynamics has gone into the study of interactions between binary systems and other stars. The asymptotic analytic results obtained by Heggie (1975) for binary-single star encounters have been largely confirmed and extended by later numerical experiments (Hills 1975, Hut and Bahcall ...
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Strong Variability in AzV 493, an Extreme Oe-type Star in the SMC
The Astrophysical Journal, 2023 We present 18 yr of OGLE photometry together with spectra obtained over 12 yr revealing that the early Oe star AzV 493 shows strong photometric (Δ I < 1.2 mag) and spectroscopic variability with a dominant, 14.6 yr pattern and ∼40 day oscillations.
M. S. Oey +13 more
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How unique is Plaskett's star? A search for organized magnetic fields in short period, interacting or post-interaction massive binary systems [PDF]
, 2017 Amongst O-type stars with detected magnetic fields, the fast rotator in the close binary called Plaskett's star shows a variety of unusual properties.
Alecian, E. +7 more
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Stringent upper limit on Be star fractions produced by binary interaction [PDF]
Astronomy & Astrophysics, 2021 Context. Binary evolution can result in fast-rotating stars through accretion of angular momentum during mass-transfer phases. These fast-rotating stars are predicted to be observable as Be stars. Current models struggle to produce a satisfactory description of Be star populations, even though numerous pieces of observational evidence indicate that the
Chen Wang +6 more
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