Color Distributions of Stars in the WISE Preliminary Data Release

Details Color Distributions of Stars in the WISE Preliminary Data Release Color Distributions of Stars in the WISE Preliminary Data Release

Jan 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21915216h&link_type=abstract

American Astronomical Society, AAS Meeting #219, #152.16

Astronomy and Astrophysics

Astronomy

Scientific paper

We present a preliminary characterization of the Galactic stellar populations from the Wide-field Infrared Space Explorer (WISE) Preliminary Data Release. We trace the main sequence color locus in 16 dimensions using a matched sample between IRAS, SDSS and 2MASS for several million stars. This exquisite characterization of "normal” stars enables efficient and robust searches for non-main-sequence stars. For example, the excellent faint limit of WISE yields a sample of AGB candidates using the 4.6, 12, and 22 micron bandpasses that exceeds the IRAS AGB catalog by up to an order of magnitude. Our preliminary analysis suggests that the WISE database will be a goldmine for studies of Galactic stellar populations.

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