Results 1 to 10 of about 480,832 (207)
Calcium Emission in Interacting Binary Be Stars [PDF]
arXiv, 2012 Polidan (1976) suggested that Be stars showing the CaII IR triplet in emission are interacting binaries. With the advent of the Gaia satellite, which will host a spectrometer to observe stars in the range 8470--8750 \AA, we carried out a spectroscopic survey of 150 Be stars, including Be binaries.
P. Koubský +9 more
arxiv +5 more sources
Be Stars as Interacting Binaries [PDF]
Symposium - International Astronomical Union, 1982 At the last IAU Symposium on Be stars held in Bass River, MA in 1975, several of us (including P. Harmanec, M. Plavec, R.S. Polidan, and myself) suggested that Be stars are mass transfer binaries and represent the higher mass counterparts to the familiar Algol systems.
Geraldine J. Peters
+5 more sources
On the formation of Be stars through binary interaction [PDF]
The Astrophysical Journal, 2014 Be stars are rapidly rotating B type stars. The origin of their rapid rotation is not certain, but binary interaction remains to be a possibility. In this work we investigate the formation of Be stars resulting from mass transfer in binaries in the Galaxy.
Yong Shao, Xiang-Dong Li
arxiv +5 more sources
Ultraviolet Observations of Interacting Binary Be Stars [PDF]
Symposium - International Astronomical Union, 1982 Initial results from the analysis of a series of timed, high resolution IUE observations of HR 2142, ϕ Per, CX Dra, KX And, AU Mon, and TT Hya are presented. The data base for HR 2142 also includes Copernicus U1 and U2 observations. Variable absorption lines, indicative of mass flow in the system, are observed in all objects except ϕ Per.
Godefridus J. Peters, R. S. Polidan
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Be Stars in Roche-Lobe Interacting Binaries [PDF]
International Astronomical Union Colloquium, 2000 AbstractDifferent types of massive interacting binaries with Be components are discussed. Due to mass exchange, Be stars in these systems have some peculiar characteristics. Often it is even difficult to find traces of the Be star and/or mass-losing star in the optical region of the spectrum. Using the value of the orbital period as a primary parameter,
А. Е. Тарасов
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AGB winds in interacting binary stars [PDF]
Monthly Notices of the Royal Astronomical Society, 2020 ABSTRACT We perform numerical simulations to investigate the stellar wind from interacting binary stars. Our aim is to find analytical formulae describing the outflow structure. In each binary system the more massive star is in the asymptotic giant branch (AGB) and its wind is driven by a combination of pulsations in the stellar surface ...
Luis C. Bermúdez-Bustamante +3 more
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Binary interaction dominates the evolution of massive stars [PDF]
Science 337, 444 (2012), 2012 The presence of a nearby companion alters the evolution of massive stars in binary systems, leading to phenomena such as stellar mergers, X-ray binaries and gamma-ray bursts. Unambiguous constraints on the fraction of massive stars affected by binary interaction were lacking. We simultaneously measured all relevant binary characteristics in a sample of
Eric Gosset +11 more
arxiv +9 more sources
A stringent upper limit on Be star fractions produced by binary interaction [PDF]
Astronomy & Astrophysics, 2021 Context. Binary evolution can result in fast-rotating stars, predicted to be observable as Be stars, through accretion of angular momentum during mass-transfer phases. Despite numerous observational evidence pointing to this possibly being the dominant Be formation channel, current models struggle to produce a satisfactory description of Be star ...
Chen Wang +6 more
arxiv +5 more sources
The Realm of Interacting Binary Stars
, 1993 Introduction,, J. Sahade, et al the development of the idea of interacting double stars, A.H. Batten, F.B. Wood the interacting binary zoo, J. Sahade, et al mass loss in interacting binaries, J. Sahade some issues in the theory of mass transfer, S.H. Lubow the algol-type interacting binaries, G.E. McCluskey, Jr the R.S.
Jorge Sahade +2 more
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Detailed models of interacting short-period massive binary stars [PDF]
Astronomy & Astrophysics, 2021 Context. The majority of massive stars are part of binary systems. In about a quarter of these, the companions are so close that mass transfer occurs while they undergo core hydrogen burning, first on the thermal and then on the nuclear timescale. The nuclear timescale mass transfer leads to observational counterparts: the semi-detached so-called ...
K. Sen +12 more
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