Titlebook: Astrotomography; Indirect Imaging Met Henri M.J. Boffin,Jan Cuypers,Danny Steeghs Book 2001 Springer-Verlag Berlin Heidelberg 2001 Accretio

棲息地

,Hα-Emission Doppler Tomography of Long-Period Cataclysmic Variable Stars,uring our observations. All of them have visible mass donor stars allowing us to establish precise orbital phases. None of them show what is often thought of as the classic pattern of symmetric disc plus bright-spot at the gas stream/disc impact. Instead they have regions of emission at low velociti

Indolent

MIR

,Spiral Waves in Accretion Discs— Observations,o resolve and map such co-rotating patterns and allows a straightforward comparison with theory. The dwarf nova IP Pegasi presents the best studied case, carrying two spiral arms in a wide range of emission lines throughout its outbursts. Both arms appear at the locations where tidally driven spiral

令人悲傷

,Spiral Waves in Accretion Discs— Theory,me classes of close binary stars, and more particularly in cataclysmic variables. In this paper, we review the physics of spirals waves in accretion discs, present the results of numerical simulations and consider whether theory can be reconcilied with observations.

獎牌

Spiral Shocks in an Inviscid Simulation of Accretion Flow in a Close Binary System, We do not include artificial nor α-viscosity and supply gas from the inner L1 point. We construct Doppler maps and artificial trailed spectrograms. In the 2D calculation, the results agree very well with those observed in IP Peg. In the 3D calculations, the stream from the L1 point penetrates into

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中子

Statistics of Isolated Emission Sources in Cataclysmic Variables,systems. Many examples show that the lines are composed not only from (symmetrical) disc emission, but that additional contribution is provided by isolated, i.e. asymmetric emission sources, distorting the original line profile. In this paper, we study the distribution of these additional components

誘拐

Tomography of Polars,M Herculis type, the so-called .. The three main ingredients of such systems, the donor star, the accretor and the accretion stream between the two stars, are investigated by Doppler tomography, Roche tomography and eclipse mapping methods. Future applications currently in development will include Z

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