Accretion Streams in Magnetic Variables: FOS Eclipse Studies of 4 ROSAT/HEAO 1 Sources

Details Accretion Streams in Magnetic Variables: FOS Eclipse Studies of 4 ROSAT/HEAO 1 Sources Accretion Streams in Magnetic Variables: FOS Eclipse Studies of 4 ROSAT/HEAO 1 Sources

Jul 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996hst..prop.6498s&link_type=abstract

HST Proposal ID #6498

Computer Science

Hst Proposal Id #6498 Binaries And Star Formation

Scientific paper

Pre-COSTAR HST FOS RAPID-Mode observations of DP Leo, ST LMi, and UZ For have shown that the UV region is ideal for the study of the accretion streams, white dwarfs, and heated photospheres surrounding the X-ray/cyclotron accretion shocks. These studies will be extended to 4 recently discovered Magnetic CVs using higher time resolution for the brighter sources and more extended observations of the more detached, longer period systems. The eclipse data reveal the position, size, and ionization conditions of the threading region and the pre-shock accretion stream. They also yield the sizes and relative luminosities of the white dwarf and far- UV hot spot. These data are particularly germane to the issue of inhomogeneous {blobby} accretion and the resulting effects on the hard X-ray/soft X-ray/cyclotron balance and shock geometries in these complex, naked CVs.

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