Supervised selection of galaxy candidates from the IRAS PSC: The quality of the selection and the infrared properties of the galaxy candidates

Details Supervised selection of galaxy candidates from the IRAS PSC: The quality of the selection and the infrared properties of the galaxy candidates Supervised selection of galaxy candidates from the IRAS PSC: The quality of the selection and the infrared properties of the galaxy candidates

Jan 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992stin...9315284b&link_type=abstract

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Astronomy and Astrophysics

Astronomy

Active Galaxies, Astronomical Catalogs, Galaxies, Infrared Radiation, Infrared Sources (Astronomy), X Ray Astronomy, Cross Correlation, Rosat Mission, Selection

Scientific paper

A galaxy sample was prepared from the IRAS Point Source Catalog (PSC) for subsequent study in the Rosat X-ray band. The methodology of the trainable statistical classifier of Meurs et al. (1988), which was applied to select extragalactic sources from the IRAS PSC, is summarized. The classifiers performance is assessed using Wolstencroft et al.'s (1986) and Legget at al.'s (1987) identifications of IRAS objects in selected fields and by cross correlating the galaxy sample with the SIMBAD catalog. The selected sample is less than 6 percent contaminated by galactic sources, allowing to undertake a study of statistical correlations with X-ray properties determined from the Rosat all sky survey. The mean infrared colors of the IRAS galaxy sample are compared with those derived from the two selected fields as an additional indicator of the quality of the selection.

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