/ftp/cats/J/ApJS/175/./191



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J/ApJS/175/191   NIR variability in 2MASS calibration fields   (Plavchan+, 2008)
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	table2.dat table[45].dat table8.dat table1[34].dat
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Beginning of ReadMe : J/ApJS/175/191 Variables from 2MASS calibration fields (Plavchan+, 2008) ================================================================================ Near-infrared variability in the 2MASS calibration fields: a search for planetary transit candidates. Plavchan P., Jura M., Kirkpatrick J.D., Cutri R.M., Gallagher S.C. <Astrophys. J. Suppl. Ser., 175, 191-228 (2008)> =2008ApJS..175..191P ================================================================================ ADC_Keywords: Stars, variable ; Photometry, infrared Keywords: binaries: eclipsing - methods: statistical - stars: variables: other Abstract: 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 K_s_ 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.