The Chandra X-ray Grating Spectrum of Eta Car and WR 140

Details The Chandra X-ray Grating Spectrum of Eta Car and WR 140 The Chandra X-ray Grating Spectrum of Eta Car and WR 140

Dec 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aas...19913309c&link_type=abstract

American Astronomical Society, 199th AAS Meeting, #133.09; Bulletin of the American Astronomical Society, Vol. 33, p.1500

Astronomy and Astrophysics

Astronomy

Scientific paper

Eta Carinae is perhaps the most massive star in the Galaxy, and strongly suspected to be a long-period (P=5.52 years) colliding wind binary. WR140 is a known long period (P=7.9 years) colliding wind binary consisting of a Wolf-Rayet star and O star companion. We have recently obtained high resolution X-ray spectra of Eta Carinae (near apastron in the putative binary orbit) and WR 140 (near periastron). We compare both spectra and find that they are consistent with X-ray emission formed in the shocked region where the wind from the primary and secondary star collide.

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