The Chandra survey of Carina OB stars
Abstract
We have combined 22 deep Chandra ACIS-I pointings to map over one square degree of the Carina complex. Our x-ray survey detects 69 of 70 known O-type stars and 61 of 130 known early B stars. The majority of single O stars display soft X-ray spectra and have a mean log LX/Lbol ~ -7.5 suggesting shocks embedded in the O-star winds. Over OB stars show unusually high X-ray luminosities, high shock temperatures or time variability, not predicted for embedded wind shocks.
- Publication:
-
Active OB Stars: Structure, Evolution, Mass Loss, and Critical Limits
- Pub Date:
- July 2011
- DOI:
- Bibcode:
- 2011IAUS..272..608G
- Keywords:
-
- X-rays: stars;
- X-rays: binaries;
- stars: early-type;
- stars: pre-main-sequence