X-ray Emission from Cataclysmic Variable Stars
نویسندگان
چکیده
منابع مشابه
X-ray emission from T Tauri stars
We have modelled the X-ray emission of T Tauri stars assuming that they have isothermal, magnetically-confined coronae. These coronae extend outwards until either the pressure of the hot coronal gas overcomes the magnetic field, or, if the corona interacts with a disk before this happens, by the action of the disk itself. This work is motivated by the results of the Chandra Orion Ultradeep Proj...
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Young O stars are strong, hard, and variable X-ray sources; properties that strongly affect their circumstellar and galactic environments. After ≈ 1 Myr, these stars settle down to become steady sources of soft X-rays. I will use high-resolution X-ray spectroscopy and MHD modeling to show that young O stars like θ Ori C are well explained by the magnetically channeled wind shock scenario. After...
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I discuss the X-ray observations of Be stars, and how their properties compare to non-emission B stars. I focus on several specific stars that show high flux levels and variability but also report on several interesting survey results. The Be X-ray properties are discussed in the context of wind-shock X-ray emission from normal OB stars as well as in the context of general mechanisms that have ...
متن کاملAccretion in Cataclysmic Variable Stars
We consider accretion onto the white dwarfs in cataclysmic variables in relation to nova eruptions, dwarf nova outbursts, hibernation and non-radial oscillations.
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Aims. We present discovery observations of the new cataclysmic variable star (CV) 1RXS J092737.4-191529, as well as spectra and photometry of SY Vol. The selection technique that turned up these two CVs is described; it should be efficient for finding dwarf novae with high outburst duty cycles. Methods. Two very common observational features of CVs, namely optical variability and X-ray emission...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 1974
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/167.1.47p