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• W2173947491 abstract "The “Annapolis Workshop on Magnetic Cataclysmic Variables,” genially known as MCV2 (to acknowledge that the first such specialized workshop occurred in Cape Town 3 years earlier), was held 1998 July 13–17 on the campus of St. John’s College, Annapolis, Maryland. The stimulation for this series arises from the prominence of magnetic cataclysmic variables (CVs) in the EUV and X-ray sky: for the strongly magnetic systems (polars), most of the accretion luminosity is emitted in UV and soft X-rays; for the less magnetic CVs (intermediate polars, in which the white dwarf primary’s rotation is not synchronized with binary revolution), there is a strong harder X-ray component. Therefore, these objects are being studied by the contemporary satellites HST, EUVE, ROSAT, BeppoSAX, Ginga, RXTE, and ASCA and will be prime candidates for next-generation instruments, which include AXAF, XMM, Astro-E, SpectrumXG, and Constellation-X. Despite these comments, the reality is that high time resolution, ground-based optical spectroscopy with large telescopes continues to be the principal source of structural information about polars. In particular, as shown by Axel Schwope, Doppler tomography gives quantitative results for the interstar stream ballistic trajectory and the path of the gas after it has coupled onto the magnetic field lines of the primary. The results for HU Aqr, which, like probably all polars, has high and low states of mass transfer, show that the stream is threaded earlier when the system is in the low state. The same star has been studied with independent mapping techniques by Sonja Vrielmann and Kate HarropAllin et al. The resulting details of the line and continuum brightness distributions and the velocity structure will provide the stimulus for physical models of the entire interstar plasma stream. A new technique, using observed Stokes parameters and a genetic algorithm to find an objective deconvolution of the observations, applied to the polar V347 Pav, gives the most unbiased picture of the accretion regions in a polar (Stephen Potter et al.). Spin-period tomograms, constructed by Coel Hellier from time-resolved emission-line profiles in intermediate polars, convincingly confirm the existence of accretion curtains. In AO Psc only one curtain is visible, extending over ∼120 of the inner edge of the truncated accretion disk, but in PQ Gem" @default.
• W2173947491 created "2016-06-24" @default.
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• W2173947491 date "1998-11-01" @default.
• W2173947491 modified "2023-09-27" @default.
• W2173947491 title "Conference Highlights: The Annapolis Workshop on Magnetic Cataclysmic Variables" @default.
• W2173947491 doi "https://doi.org/10.1086/316262" @default.
• W2173947491 hasPublicationYear "1998" @default.
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