The High Resolution X-ray Spectrum of AM Herculis: Probing the Accretion Process

Physics

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Chandra Proposal Id #05300226

Scientific paper

We propose a 100ks Chandra HETG observation of the polar AM Herculis in a high state. With the good quality, high energy resolution data this will provide, we will be able to use the HEG to: (i) examine the nature of the 6.4 keV fluorescence line in order to see if it has its origin in reflection from the white dwarf surface or absorption in the pre-shock flow. (ii) Measure the widths of the thermal Fe Kalpha lines in order to constrain the importance of Compton broadening in this star. Also, using the MEG we will be able to (iii) measure the line strengths of the lighter elements and examine the physical conditions in the post-shock region. [NOTE: This is a resubmission of an accepted Cycle 4 TOO proposal, which has not been triggered as of March 5, 2003.]

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