XMM-Newton observation of the dust-making Wolf-Rayet star WR106

Details XMM-Newton observation of the dust-making Wolf-Rayet star WR106 XMM-Newton observation of the dust-making Wolf-Rayet star WR106

Oct 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010xmm..prop...56d&link_type=abstract

XMM-Newton Proposal ID #06713301

Physics

Stars, White Dwarfs, Solar System, Wr106

Scientific paper

The issue of the X-ray emission from Wolf-Rayet (WR) stars is far from being elucidated. Thanks to previous observations, we know indeed that even though several WN-type WR are detected in X-rays, it appears that single WC stars are not detected, most probably because of the strong opacity of the stellar wind. However, significant X-ray emission is expected if WC stars are part of a colliding-wind binary system. In the case of dust-making WR stars (WC-type with dense stellar winds), dust is most probably produced in a wind-wind interaction region. Performed and forthcoming interferometric observations in the near-infrared (VLTI, PI: De Becker) will help us to investigate the multiplicity of WR106 (abridged).

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