Variables from 2MASS calibration fields (Plavchan+, 2008)

Details Variables from 2MASS calibration fields (Plavchan+, 2008) Variables from 2MASS calibration fields (Plavchan+, 2008)

Jun 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009ycat..21750191p&link_type=abstract

VizieR On-line Data Catalog: J/ApJS/175/191. Originally published in: 2008ApJS..175..191P

Computer Science

Stars: Variable, Photometry: Infrared

Scientific paper

The Two Micron All Sky Survey (2MASS) photometric calibration observations cover ~6 square degrees on the sky in 35 "calibration fields", each sampled in nominal photometric conditions between 562 and 3692 times during the 4 years of the 2MASS mission. We compile a catalog of variables from the calibration observations to search for M dwarfs transited by extrasolar planets. We present our methods for measuring periodic and nonperiodic flux variability. From 7554 sources with apparent Ks magnitudes between 5.6 and 16.1, we identify 247 variables, including extragalactic variables and 23 periodic variables. We have discovered three M dwarf eclipsing systems, including two candidates for transiting extrasolar planets.
(6 data files).

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