Results 11 to 20 of about 115,902 (249)
Studying the UV Mg II Resonance Lines in 20 Be Stars
Open Astronomy, 2011 Using the GR model, we analyze the UV Mg II resonance lines in the spectra of 20 Be stars of different spectral subtypes, in order to detect the presence of satellite or discrete absorption components. The values of some physical parameters – rotational,
Antoniou A. +3 more
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Reddening-Free Q Parameters to Classify B-Type Stars with Emission Lines
Galaxies, 2023 The emission-line B-type stars constitute a heterogeneous group. Many of these stars show similar optical spectroscopic features and color indices, making it difficult to classify them adequately by means of photometric and spectroscopic techniques. Thus,
Yael Aidelman, Lydia Sonia Cidale
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CHIME Discovery of a Binary Pulsar with a Massive Nondegenerate Companion
The Astrophysical Journal, 2023 Of the more than 3000 radio pulsars currently known, only ∼300 are in binary systems, and only five of these consist of young pulsars with massive nondegenerate companions.
Bridget C. Andersen +27 more
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The Connection between Classical Be Stars and Herbig Ae/Be Stars [PDF]
International Astronomical Union Colloquium, 2000 AbstractWe use a phenomenological approach to derive new constraints on the mass loss mechanisms working in the classical Be and the Herbig Ae/Be stars, which represent two groups of stars located very nearby in the HR diagram. We discuss observational similarities of classical Be and Herbig Be stars on one side, and stress, on the other side, the ...
T. Böhm, L.A. Balona
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The Astrophysical Journal, 2023 Observations of the high-mass gamma-ray binary LS 2883/PSR B1259–63 with the Chandra X-ray Observatory during the 2011–2014 and 2014–2017 binary cycles have shown X-ray-emitting clumps, presumably ejected from the binary during periastron passages. These
Jeremy Hare +3 more
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On the evolutionary status of Be stars [PDF]
Astronomy & Astrophysics, 2005 18 pages, 6 figures, A&A, in ...
Zorec, J. +2 more
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The Astronomy and Astrophysics Review, 2013 Review accepted for publication in Astronomy and Astrophysics Review, 87 pages with 17 ...
Rivinius, Th. +2 more
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The Effect of Viscosity on the Temperature of Ae Star Disks
GalaxiesThis study explores the impact of viscous heating on decretion disks around Classical Ae (CAe) stars, with a focus on modeling the disk’s thermal structure.
R. Anusha, T. A. A. Sigut
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The Astrophysical Journal, 2022 Very young ( t ≲ 10 Myr) stars possess strong magnetic fields that channel ionized gas from the interiors of their circumstellar disks to the surface of the star.
Hunter Campbell +23 more
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Modeling of the Wind/Disk Outflow from Be Stars II: Formation of the Keplerian Disk
Universe, 2022 Computer modeling of the outflow from Be stars is performed. In our approach, processes of turbulence excitation and turbulent viscosity are added to the conventional model of the radiation driven winds.
Sergey Bogovalov, Maxim Petrov
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