Results 21 to 30 of about 301 (183)
The Astronomical Journal, 2023 Accretion of mass onto a white dwarf (WD) in a binary system can lead to stellar explosions. If a WD accretes from stellar wind of a distant evolved giant in a symbiotic binary, it can undergo occasional outbursts in which it brightens by several ...
Augustin Skopal
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”ASYMPTOTIC PARABOLA” FITS FOR SMOOTHING GENERALLY ASYMMETRIC LIGHT CURVES
Odessa Astronomical Publications, 2016 A computer program is introduced, which allows to determine statistically optimal approximation using the "Asymptotic Parabola" fit, or, in other words, the spline consisting of polynomials of order 1,2,1, or two lines ("asymptotes") connected with a ...
K. D. Andrych +3 more
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Pole-On Cataclysmic Variables as Be Stars [PDF]
International Astronomical Union Colloquium, 1987 Cataclysmic-variable stars (CVs) are technically Be stars, since Balmer emission lines appear in their spectra. In general, CV spectra are so unusual that they are easily recognized. The main features are extremely broad, shallow hydrogen lines with broad, faint emission cores.
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The absence of jets in cataclysmic variable stars [PDF]
Astronomy & Astrophysics, 2004 We show that the recently developed thermal model which successfully describes how jets are launched by young stellar objects, when applied to system containing disk-accreting white dwarfs naturally explain the otherwise surprising absence of jets in cataclysmic variable stars.
Soker, N., Lasota, J. -P.
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Indirect Imaging of Cataclysmic Variable Stars [PDF]
, 2022 Kataklysmische veränderliche Sterne (CVs) sind kompakte Doppelsterne, die aus einem weißen Zwerg, einem späten Hauptreihenstern und einer Akkretionsstruktur bestehen. Die scheinbare Ausdehnung der Objekte ist wegen der großen Entfernung zu klein, um direkte räumlich aufgelöste Abbildungen aufzunehmen.
Kube, Jens +5 more
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The Periods of Cataclysmic Variable Stars [PDF]
International Astronomical Union Colloquium, 1983 To understand the structure and evolution of the cataclysmic variables, we will need accurate values for their masses, dimensions, mass transfer rates, and other physical properties. Unfortunately, despite an abundance of observational data on these systems, there is a severe dearth of reliable, quantitative information about their fundamental physical
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Spectroscopy of Nine Cataclysmic Variable Stars [PDF]
Publications of the Astronomical Society of the Pacific, 2007 31 pages, 5 postscript and one PNG figure.
Sheets, H. A. +4 more
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Disc–magnetosphere interactions in cataclysmic variable stars [PDF]
Proceedings of the International Astronomical Union, 2007 AbstractI review, from an observational perspective, the interactions of accretion discs with magnetic fields in cataclysmic variable stars. I start with systems where the accretion flows via a stream, and discuss the circumstances in which the stream forms into an accretion disc, pointing to stars which are close to this transition.
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Accretion Discs in Cataclysmic Variable Stars [PDF]
International Astronomical Union Colloquium, 1997 AbstractAn overview is given of the spatial and time-dependent properties of the accretion discs in cataclysmic variable stars.
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White Dwarfs in Cataclysmic Variable Stars: Surface Temperatures and Evolution [PDF]
Journal of Astronomy and Space Sciences, 2012 A summary is presented of what is currently known about the surface temperatures of accreting white dwarfs (WDs) detected in non-magnetic and magnetic cataclysmic variables (CVs) based upon synthetic spectral analyses of far ultraviolet data.
Edward M. Sion
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