Author:
Broos Patrick S.,Getman Konstantin V.,Povich Matthew S.,Townsley Leisa K.,Feigelson Eric D.,Garmire Gordon P.
Abstract
ABSTRACT
The Chandra Carina Complex Project (CCCP) provides a sensitive
X-ray survey of a nearby starburst region over >1 deg2 in extent.
Thousands of faint X-ray sources are found, many concentrated into rich young
stellar clusters. However, significant contamination from unrelated Galactic and
extragalactic sources is present in the X-ray catalog. We describe the use of a
naive Bayes classifier to assign membership probabilities to individual sources,
based on source location, X-ray properties, and visual/infrared properties. For
the particular membership decision rule adopted, 75% of CCCP sources are
classified as members, 11% are classified as contaminants, and 14% remain
unclassified. The resulting sample of stars likely to be Carina members is used
in several other studies, which appear in this special issue devoted to the
CCCP.
Publisher
American Astronomical Society
Subject
Space and Planetary Science,Astronomy and Astrophysics
Cited by
49 articles.
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