Bz Cam - a Transient Supersoft X-Ray Source?

Details Bz Cam - a Transient Supersoft X-Ray Source? Bz Cam - a Transient Supersoft X-Ray Source?

Sep 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999cxo..prop..428d&link_type=abstract

Chandra Proposal ID #01308004

Physics

Chandra Proposal Id #01308004

Scientific paper

BZ Cam is a binary with a 221 min. period. It contains an accreting white dwarf and a 0.3-0.4 solar mass main-sequence donor. BZ Cam belongs to the group of variables called VY Scl stars. Most of the time it spends at V=12.7 mag, but during low states it has V=14.3 mag. BZ Cam is surrounded by a faint emission nebula (AA 181, 373). Photoionization by a canonical cataclysmic variable cannot account for the nebular excitation (emission line ratios). The proposed ACIS-S observation will test the hypothesis that BZ Cam, like V751 Cyg (A&A 343, 183) and the canonical supersoft source (SSS) RX J0513.9-6951, emits luminous supersoft X-rays during its optical low-state. If supersoft X-rays could be detected, it would have 2 major implications: (1) Discovery of new object class: VY Scl stars = tra

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