The Massive Young Star-forming Complex Study in Infrared and X-Ray: X-Ray Sources in 10 Star-forming Regions
Abstract
The Massive Young star-forming complex Study in Infrared and X-ray (MYStIX) uses data from the Chandra X-Ray Observatory to identify and characterize the young stellar populations in 20 Galactic (d < 4 kpc) massive star-forming regions. Here, the X-ray analysis for Chandra ACIS-I observations of 10 of the MYStIX fields is described, and a catalog of >10,000 X-ray sources is presented. In comparison to other published Chandra source lists for the same regions, the number of MYStIX-detected faint X-ray sources in a region is often doubled. While the higher catalog sensitivity increases the chance of false detections, it also increases the number of matches to infrared stars. X-ray emitting contaminants include foreground stars, background stars, and extragalactic sources. The X-ray properties of sources in these classes are discussed.
- Publication:
-
The Astrophysical Journal Supplement Series
- Pub Date:
- December 2013
- DOI:
- 10.1088/0067-0049/209/2/27
- arXiv:
- arXiv:1309.4484
- Bibcode:
- 2013ApJS..209...27K
- Keywords:
-
- H II regions;
- stars: activity;
- stars: formation;
- stars: pre-main sequence;
- X-rays: stars;
- Astrophysics - Solar and Stellar Astrophysics;
- Astrophysics - High Energy Astrophysical Phenomena
- E-Print:
- 32 pages, 6 figures. Accepted for publication in Astrophysical Journal Supplements (with 6 other MYStIX papers). Complete versions of all MYStIX papers are available at http://www.astro.psu.edu/mystix