/ftp/cats/aliases/W/WRA2013



==========================================================================
J/AJ/145/113     JHK photometry in Cyg OB7. II. Variable stars     (Wolk+, 2013)
The following files can be converted to FITS (extension .fit or fit.gz)
	table[345].dat
==========================================================================
Query from: http://vizier.cds.unistra.fr/viz-bin/VizieR?-source=J/AJ/145/113
==========================================================================

drwxr-xr-x 51 cats archive 4096 Jan 12 13:24 [Up] drwxr-xr-x 3 cats archive 319 Jan 13 2023 [TAR file] -rw-r--r-- 1 cats archive 471 Dec 19 2022 .message -rw-r--r-- 1 cats archive 10029 Dec 19 2015 ReadMe -rw-r--r-- 1 cats archive 610 Apr 2 2015 +footg5.gif -rw-r--r-- 1 cats archive 2198 Apr 2 2015 +footg8.gif -r--r--r-- 1 cats archive 6938 May 16 2014 table3.dat [txt] [txt.gz] [fits] [fits.gz] [html] -r--r--r-- 1 cats archive 5357 May 16 2014 table4.dat [txt] [txt.gz] [fits] [fits.gz] [html] -r--r--r-- 1 cats archive 2664 May 16 2014 table5.dat [txt] [txt.gz] [fits] [fits.gz] [html]
Beginning of ReadMe : J/AJ/145/113 JHK photometry in Cyg OB7. II. Variable stars (Wolk+, 2013) ================================================================================ Near-infrared periodic and other variable field stars in the field of the Cygnus OB7 star-forming region. Wolk S.J., Rice T.S., Aspin C.A. <Astron. J., 145, 113 (2013)> =2013AJ....145..113W ================================================================================ ADC_Keywords: Binaries, eclipsing ; Photometry, infrared ; Stars, variable Keywords: binaries: eclipsing - infrared: stars - stars: variables: general Abstract: We present a subset of the results of a three-season, 124 nights, near-infrared monitoring campaign of the dark clouds Lynds 1003 and Lynds 1004 in the Cygnus OB7 star-forming region. In this paper, we focus on the field star population. Using three seasons of UKIRT J, H, and K-band observations spanning 1.5 years, we obtained high-quality photometry on 9200 stars down to J=17mag, with photometric uncertainty better than 0.04mag. After excluding known disk-bearing stars we identify 149 variables-1.6% of the sample. Of these, about 60 are strictly periodic, with periods predominantly <2days. We conclude this group is dominated by eclipsing binaries. A few stars have long period signals of between 20 and 60 days. About 25 stars have weak modulated signals, but it was not clear if these were periodic. Some of the stars in this group may be diskless young stellar objects with relatively large variability due to cool starspots. The remaining  60 stars showed variations which appear to be purely stochastic. Description: J, H, and K observations of the Cygnus OB7 region were obtained using the Wide-Field Camera (WFCAM) instrument on the United Kingdom InfraRed Telescope (UKIRT), an infrared-optimized 3.8m telescope atop Mauna Kea, Hawaii at 4200m elevation. Our data consist of WFCAM observations taken from 2008 May to 2009 October in three observing seasons (Season 1 from 2008 Apr 26 to 2008 May 22; Season 2 from 2008 Sep 19 to 2008 Nov 27; Season 3 from 2009 Aug 28 to 2009 Oct 13) as part of a special observation program. Data were taken on a total of 124 nights during this period. The data set used here was fully described in Paper I (Rice et al., 2012ApJ...755...65R).