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J/AJ/134/1488       MG1 Variable Star Catalog (MG1-VSC)      (Kraus+, 2007)

The first MOTESS-GNAT variable-star survey. Kraus A.L., Craine E.R., Giampapa M.S., Scharlach W.W.G., Tucker R.A. <Astron. J., 134, 1488-1502 (2007)> =2007AJ....134.1488K
ADC_Keywords: Surveys ; Stars, variable ; Photometry Keywords: binaries: eclipsing - catalogs - stars: variables: other - surveys - techniques: photometric Abstract: We present the results of the first MOTESS-GNAT variable-star survey, a deep, wide-field variability survey conducted over 2yr with a total sky coverage of 300deg2. In this survey, we identified 26042 variable-star candidates with magnitudes R=13-19, including 5271 that are periodic at the 99% confidence level. We recovered 59 out of 68 members of the General Catalogue of Variable Stars (GCVS) that are in this brightness range. We discuss the implications for completeness and accuracy for both this survey and the GCVS; the implied completeness for distinctly classifiable variable stars in our survey is ∼85%-90%. We also discuss some of the caveats of our survey results. We conclude that this instrument design is ideal for an inexpensive, longitudinally distributed telescope network that could be used to study faint or rare transient phenomena in a previously unexplored regime of parameter space. Description: This data set was collected between 2001 April and 2003 July with MOTESS, a cluster of three 0.35m telescopes operating at Goodricke-Pigott Observatory outside Tucson, Arizona. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file catalog.dat 90 26042 MG1 variable-star catalog (MG1-VSC)
See also: http://www.egnat.org : MG1 Home Page Byte-by-byte Description of file: catalog.dat
Bytes Format Units Label Explanations
1- 7 I7 --- MG1 Sequential number, MOTESS-GNAT NNNNNNN in Simbad 9- 10 I2 h RAh Right ascension (J2000) 12- 13 I2 min RAm Right ascension (J2000) 15- 18 F4.1 s RAs [0/60] Right ascension (J2000) 20 A1 --- DE- Declination sign (J2000) 21 I1 deg DEd Declination (J2000) 23- 24 I2 arcmin DEm Declination (J2000) 26- 27 I2 arcsec DEs [0/60] Declination (J2000) 29- 34 F6.3 mag Rmag MG1 R magnitude (unfiltered) 37- 41 F5.3 mag Amp Mean amplitude of the light curve in R band 45- 49 F5.3 mag e_Amp Standard deviation around the mean amplitude 53- 57 F5.3 mag Err Assigned photometric error 60- 66 F7.2 --- SKEW Skew of the light curve 69- 71 I3 --- Nobs Number of observations 77- 81 F5.3 [d] log(Per) Period 85- 90 F6.2 [-] logPFA Probability of false alarm
History: Copied at http://www.egnat.org
(End) Patricia Vannier [CDS] 31-Oct-2009
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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