High-Resolution X-Ray Spectroscopy of SS Cygni in Quiescence

Details High-Resolution X-Ray Spectroscopy of SS Cygni in Quiescence High-Resolution X-Ray Spectroscopy of SS Cygni in Quiescence

Sep 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999cxo..prop...66w&link_type=abstract

Chandra Proposal ID #01300474

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Chandra Proposal Id #01300474

Scientific paper

We propose an AXAF HETGS observation of the brightest dwarf nova SS Cygni in its normal quiescent state. The unprecedented spectral resolution afforded by AXAF will make this the first observation of a hard-X-ray cataclysmic-variable boundary layer in which it is possible fully to resolve individual lines (other than Fe-K). The spectrum will allow us to measure the temperature distribution of the shock-heated plasma and constrain its density and elemental abundances. Measurement of these quantities will form the observational basis on which to build a theoretical understanding of the complex shocks which form in the strongly-shearing flow of the boundary layer.

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