WISE Flux Variables

Computer Science – Databases

Scientific paper

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Scientific paper

The Wide-field Infrared Survey Explorer (WISE) mapped the entire sky in four bands centered at wavelengths of 3.4, 4.6, 12, and 22 microns. The number of exposures for each point on the sky increases with ecliptic latitude, and ranges from 12 on the ecliptic to over 1000 at the ecliptic poles. The observing cadence is suited for studying flux variables with periods between 2 hours to 2 days near the ecliptic, with the maximum period increasing up to several weeks near the ecliptic poles. We present the method used to identify several types of variables in the WISE Preliminary and Final Source Databases, and the mid-IR light curves of many periodic and non-periodic variable sources. Many of these objects are new, and include RR Lyr, Algol, W UMa, Cepheid, and YSO -type variables, as well as several blazar candidates.

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