Iron Line Broadening in the Intermediate Polar AO PSC

Details Iron Line Broadening in the Intermediate Polar AO PSC Iron Line Broadening in the Intermediate Polar AO PSC

Sep 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000cxo..prop..567h&link_type=abstract

Chandra Proposal ID #02300245

Physics

Chandra Proposal Id #02300245

Scientific paper

ASCA observations of the Fe Kalpha line complex of magnetic cataclysmic variables revealed a puzzle -- half have narrow lines and half have broad lines. Further, the broadening is too large to be explained by Doppler shifts and, simulations show, is too small to be explained by Compton scattering in the accretion columns. To obtain data better by a factor ~3, and so resolve the puzzle, we request a HETG observation of AO Psc, the system showing broadening most securely. We will compare this to our AO-1 observation of V1223 Sgr, which has narrow lines, to enable us to investigate broadening mechanisms in accretion columns and use them as a probe of accretion-column physics.

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