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2000AJ....119.2498J - Astron. J., 119, 2498-2531 (2000/May-0)
2MASS extended source catalog: overview and algorithms.
JARRETT T.H., CHESTER T., CUTRI R., SCHNEIDER S., SKRUTSKIE M. and HUCHRA J.P.
Abstract (from CDS):
This paper describes the basic algorithms used to detect and characterize extended sources in the 2MASS database and catalog. Critical procedures include tracking the point-spread function, image background removal, artifact removal, photometry and basic parameterization, star-galaxy discrimination, and object classification using a decision tree technique. We introduce and provide examples of the types of extended sources that 2MASS detects across the sky, including galaxies, Galactic nebulae and resolved stellar objects, multiple stars and clusters, and, finally, artifacts arising from bright stars and transient events. A future paper will provide a full statistical analysis and verification of the completeness, reliability, and integrity of the first release catalog, as well as some of the basic scientific results of the catalog, including galaxy colors, number counts, and redshift distribution.
Abstract Copyright: ∼
Journal keyword(s): Galaxies: General - Methods: Data Analysis - Surveys - Techniques: Image Processing - Techniques: Miscellaneous - Techniques: Photometric
Simbad objects: 1
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