XMM-Newton Proposal 03042503

Details XMM-Newton Proposal 03042503 XMM-Newton Proposal 03042503

Oct 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004xmm..prop..151c&link_type=abstract

XMM-Newton Proposal ID #03042503

Computer Science

Stars, White Dwarfs, Solar System, Hd 5980, Hd 5980, Hd 5980, Xmm-Newton Proposal 03042503

Scientific paper

HD 5980 is an Eta Car-like binary system in which one of the stellar components is an eruptive Luminous Blue Variable. Unlike Eta Car, the nature of the X-ray variability of HD 5980 is unclear. We propose to re-observe HD 5980 with XMM to measure the X-ray brightness at four critical orbital phases to constrain the phase dependence of the X-ray emission and to provide a benchmark for future spectrographic observations with XMM and CHANDRA. The observations we propose, combined with previous CHANDRA and XMM observations, will determine the importance of colliding wind X-ray emission from this system and will also help constrain how the X-ray emission depends on the variable mass loss from the LBV component.

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