The Boundary Layer in Cataclysmic Variables
نویسندگان
چکیده
منابع مشابه
The Magnetospheric Boundary in Cataclysmic Variables
The magnetic cataclysmic variables (MCVs) present a wealth of observational diagnostics for studying accretion flows interacting with a magnetosphere. Spin-period pulsations from the rotation of the white dwarf are seen in optical light, in the UV and Xray bands, and in polarimetry, and modelling these can constrain the size and location of the accretion footprints on the white-dwarf surface. T...
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EUVE , ROSAT , and ASCA observations of the boundary layer emission of nonmagnetic cataclysmic variables (CVs) are reviewed. EUVE spectra reveal that the effective temperature of the soft component of high-Ṁ nonmagnetic CVs is kT ∼ 10–20 eV and that its luminosity is∼ 0.1–0.5 times the accretion disk luminosity. Although the EUV spectra are very complex and belie simple interpretation, the phys...
متن کاملCataclysmic variables
Cataclysmic variables are binary stars in which a relatively normal star is transferring mass to its compact companion. This interaction gives rise to a rich range of behaviour, of which the most noticeable are the outbursts that give the class its name. Novae belong to the class, as do the less well known dwarf novae and magnetic systems. Novae draw their energy from nuclear reactions, while d...
متن کاملThe Periods of Cataclysmic Variables
The present status of the period studies of cataclysmic variables is briefly reviewed, mainly from the observational point of view. A few comments on individual objects include EM Cyg, Z Cha, WZ Sge and AM CVn.
متن کاملThe Winds of Cataclysmic Variables
We present an observational and theoretical review of the winds of cataclysmic variables (CVs). Specifically, we consider the related problems of the geometry, ionization state, and mass-loss rate of the winds of CVs. We present evidence of wind variability and discuss the results of studies of eclipsing CVs. Finally, we consider the properties of accretion disk wind and magnetic wind models. S...
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ژورنال
عنوان ژورنال: International Astronomical Union Colloquium
سال: 1987
ISSN: 0252-9211
DOI: 10.1017/s0252921100105019