XMM-Newton Proposal 02007401

Details XMM-Newton Proposal 02007401 XMM-Newton Proposal 02007401

Mar 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003xmm..prop...36s&link_type=abstract

XMM-Newton Proposal ID #02007401

Computer Science

Wr147, Xmm-Newton Proposal 02007401

Scientific paper

The X-ray emission of massive WR + OB binaries is thought to originate mainly in a colliding wind (CW) shock between the two stars. Rigorous observational tests of CW shock models have been hampered by imprecise knowledge of the binary components and their winds and by the dearth of WR + OB binaries bright enough in X-rays to acquire good spectra. An exception is the WN8 + O5-7 binary WR 147 whose stellar properties are well-constrained by HST STIS spectra and radio interferometry. We propose to obtain the first high-quality X-ray spectrum of WR 147 with XMM. The EPIC spectra will remove temperature ambiguities that are present in faint ASCA spectra and comparisons of the data with synthetic spectra from numerical hydrodynamic simulations will stringently test CW models.

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