A NAIVE BAYES SOURCE CLASSIFIER FOR X-RAY SOURCES

Journal Article · Sun May 01 00:00:00 EDT 2011 · Astrophysical Journal, Supplement Series

DOI:https://doi.org/10.1088/0067-0049/194/1/4· OSTI ID:21562679

Broos, Patrick S; Getman, Konstantin V; Townsley, Leisa K; Feigelson, Eric D; Garmire, Gordon P

The Chandra Carina Complex Project (CCCP) provides a sensitive X-ray survey of a nearby starburst region over >1 deg{sup 2} 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.

• OSTI ID: 21562679
• Journal Information: Astrophysical Journal, Supplement Series, Vol. 194, Issue 1; Other Information: DOI: 10.1088/0067-0049/194/1/4; ISSN 0067-0049
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
CATALOGS
CLASSIFICATION
DATA ANALYSIS
STARS
X-RAY SOURCES
DOCUMENT TYPES
RADIATION SOURCES