Accretion in High Density and Temperature Conditions (V426 Oph)

Details Accretion in High Density and Temperature Conditions (V426 Oph) Accretion in High Density and Temperature Conditions (V426 Oph)

Sep 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001cxo..prop..792s&link_type=abstract

Chandra Proposal ID #03300197

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Chandra Proposal Id #03300197

Scientific paper

We will use HETG to observe the 0.4-10 keV spectrum of the bright, high mass transfer rate, disk accreting cataclysmic variable V426 Oph, which is known from Ginga, ASCA data to have a strong Fe complex as well as other emission lines in the 0.5-2 keV region. These lines provide information on the correct T and density, the photoionization/collisional processes and the abundances of the plasma as it undergoes the transition from a 14-19 keV low density regime to the atmosphere of an accreting 30,000K white dwarf. The velocity broadening of the lines will provide insights into the rotation and location of the gas as it follows its accretion path from the Keplerian disk to the slower rotating white dwarf, possibly along magnetic field lines.

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