Testing the Colliding Wind Paradigm: X-rays from the Wolf-Rayet Binary System WR 147

Details Testing the Colliding Wind Paradigm: X-rays from the Wolf-Rayet Binary System WR 147 Testing the Colliding Wind Paradigm: X-rays from the Wolf-Rayet Binary System WR 147

Sep 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008cxo..prop.2542z&link_type=abstract

Chandra proposal ID #10200509

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Scientific paper

We propose a deep HETG exposure of the Wolf-Rayet binary system WR 147. The excellent gratings and zero-order data will be used to put tight constraints on the validity of the colliding stellar wind (CSW) mechanism assumed responsible for the X-rays from this object. The detection of broad emission lines with profiles and centroids in agreement with synthetic colliding wind spectra, along with confirmation of the spatially extended X-ray emission reported from the previous short HRC-I exposure, would support the colliding wind picture. On the other hand, narrow (or unresolved) unshifted emission lines would require an interpretation other than CSW. Thus, this study will be the most rigorous test of the CSW paradigm in a WN+OB binary so far.

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