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Paper: Tomography of AM Herculis
Volume: 261, The Physics of Cataclysmic Variables and Related Objects
Page: 167
Authors: Schwarz, R.; Hedelt, P.; Rau, A.; Staude, A.; Schwope, A. D.
Abstract: We present new phase-resolved, high-resolution spectroscopy of AM Herculis analysed with indirect imaging techniques. Doppler tomography reveals a focused accretion stream, which does not follow the expected ballistic trajectory and does not connect to the Roche lobe at the L1-point. The Roche lobe of the secondary star is resolved in the NaI absorption and Ca II emission lines, whose front side is strongly affected by the X-ray/UV heating from the accretion region.
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