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 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:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
catalog.dat 90 26042 MG1 variable-star catalog (MG1-VSC)
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See also:
http://www.egnat.org : MG1 Home Page
Byte-by-byte Description of file: catalog.dat
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Bytes Format Units Label Explanations
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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
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History:
Copied at http://www.egnat.org
(End) Patricia Vannier [CDS] 31-Oct-2009