Observing Fast and Massive Hot Star Winds in the CYG OB2 Association

Details Observing Fast and Massive Hot Star Winds in the CYG OB2 Association Observing Fast and Massive Hot Star Winds in the CYG OB2 Association

Sep 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001cxo..prop..774c&link_type=abstract

Chandra Proposal ID #03200743

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Chandra Proposal Id #03200743

Scientific paper

We will use HETG spectra of the very luminous star Cyg OB2 8a to investigate the effects of higher speeds and denser winds on resolved X-ray line profiles. Higher ion stages and a greater attenuation of line emission from the far side of the star are expected. These observations could explain the anomalous broadening of X-ray emission lines in Chandra spectra of other O-stars. We can simultaneously obtain another HETG spectrum and several ACIS spectra of other early-type stars in the association.

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