Results 31 to 40 of about 49,904 (252)
Accretion and Intercycle Variations in the PMS Interacting Binary AK Sco [PDF]
Astrophysical Journal, 2020 There are only a handful of known short-period pre-main-sequence spectroscopic binaries with significant accretion rates (Class II sources). AK Sco stands out in this list because the system is composed of two equal mass F5 stars in a highly eccentric ...
A. I. Gómez de Castro +4 more
semanticscholar +1 more source
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 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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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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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
The Interacting Binary Be Star HR 2142 [PDF]
International Astronomical Union Colloquium, 2002 AbstractCurrent information on the nature of the HR 2142 system is presented. The circumstellar material (CSM) including the mass flow toward and away from the mass-gaining B star has been studied from ∼ 100 IUESWP HIRES images obtained from 1979–95 and ground-based CCD data from KPNO acquired between 1985–2001.
Geraldine J. Peters, Douglas R. Gies
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Two-wind interactions in binaries with two orbiting giant stars [PDF]
Monthly Notices of the Royal Astronomical Society, 2021 ABSTRACT Some red giant envelopes present spiral structures (seen either in dust-scattered stellar continuum or in molecular line emission), the most striking example probably being AFGL 3068. This object has been modeled (both analytically and numerically) in terms of a wind ejected from a star in orbit around a binary companion.
Castellanos-Ramírez, A +5 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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Binary Formation and Interactions with Field Stars [PDF]
Symposium - International Astronomical Union, 1985 Binaries provide an energy source in dense stellar systems. Exothermic gravitational interactions in star clusters can play a role similar to that of nuclear reactions in single stars. These gravitational interactions can be modeled in a laboratory setting, in the form of numerical binary-single star and binary-binary scattering experiments ...
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Interactions in Massive Binary Stars as Seen by Interferometry [PDF]
, 2013 With the advent of large-collecting-area instruments, the number of objects that can be reached by optical long-baseline interferometry is steadily increasing. We present here a few results on massive binary stars, showing the interest of using this technique for studying the insight of interactions in these systems.
Millour, Florentin +3 more
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