Reduced magnetic braking in synchronously rotating magnetic cataclysmic variables
نویسندگان
چکیده
منابع مشابه
Far - ultraviolet Spectroscopy of Magnetic Cataclysmic Variables
We have obtained HST/STIS data for a total of eleven polars as part of a program aimed to compile a homogeneous database of high-quality far-ultraviolet (FUV) spectra for a large number of cataclysmic variables (CVs). Of the eleven polars, eight were found in a state of low accretion activity (V347Pav, VVPup, V834Cen, BLHyi, MRSer, STLMi, RXJ1554.2+2721 and V895Cen) and three in a state of high...
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The flow structure in magnetic cataclysmic variables was investigated taking into account the effects of strong magnetic field and fast rotation of the white dwarf. We modeled the AE Aqr system as a unique object that has the rotation period of the white dwarf is about 1000 times shorter than the orbital period of the binary system. Observations show that in spite of fast rotation of the white ...
متن کاملIron Kα line widths in magnetic cataclysmic variables
Following a recent report that AO Psc has broad iron Kα emission lines we have looked at the ASCA spectra of 15 magnetic cataclysmic variables. We find that half of the systems have Kα lines broadened by ∼ 200 eV, while the remainder have narrow lines. We argue that the Doppler effect is insufficient to explain the finding and propose that the lines originate in accretion columns on the verge o...
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Preface This report concerns interacting binary stars called cataclysmic variables, or CVs. Two different projects, one more theoretically inclined while the other concerns new observations of CVs, are presented in different chapters and reflect the research I have conducted during my graduation year at Utrecht University to fulfill my research requirements. Chapter 1 introduces the group of bi...
متن کاملThe Secondary Stars in Short Period (Magnetic) Cataclysmic Variables
We review the recent knowledge base pertaining to causes for mass accretion variations (high/low states) in highly magnetic cataclysmic variables (i.e. polars). We then examine what theory has to say about the properties of the secondary stars (the mass donors) with respect to those CVs with very short orbital periods. Finally, we use recent observations of EF Eri in an extended low state to pr...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 1994
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/268.1.61