J/AJ/138/466 NSVS variables automated classification (Hoffman+, 2009)
Automated variable star classification using the Northern Sky Variability
Survey.
Hoffman D.I., Harrison T.E., McNamara B.J.
<Astron. J., 138, 466-477 (2009)>
=2009AJ....138..466H 2009AJ....138..466H
ADC_Keywords: Stars, variable ; Photometry, infrared ;
MK spectral classification
Keywords: binaries: close - binaries: eclipsing - Cepheids - delta Scuti -
stars: oscillations - stars: variables: other
Abstract:
We have identified 4659 variable objects in the Northern Sky
Variability Survey. We have classified each of these objects into one
of the five variable star classes: (1) Algol/alpha Lyr systems
including semidetached, and detached eclipsing binaries, (2) W Ursae
Majoris overcontact and ellipsoidal variables, (3) long-period
variables such as Cepheid and Mira-type objects, (4) RR Lyr pulsating
variables, and (5) short-period variables including delta Scuti stars.
All the candidates have outside of eclipse magnitudes of ∼10-13.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 128 551 Algol/βLyrae Candidates
table2.dat 128 522 RR Lyr Candidates
table3.dat 128 672 Cepheid/Long Period Variable Candidates
table4.dat 123 2332 W UMa Candidates
table5.dat 123 57 Short Period/δScuti Candidates
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See also:
B/gcvs : General Catalogue of Variable Stars (Samus+ 2007-2011)
J/AJ/119/1901 : ROTSE all-sky surveys for variable stars (Akerlof+, 2000)
http://skydot.lanl.gov : NSVS database
Byte-by-byte Description of file: table*.dat
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Bytes Format Units Label Explanations
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1- 9 F9.5 deg RAdeg Right Ascension in decimal degrees (J2000)
11- 19 F9.5 deg DEdeg Declination in decimal degrees (J2000)
21- 28 I8 --- Obj NSVS Object identification number
30- 38 F9.5 d Per Period
40- 45 F6.3 mag J-H ? 2MASS (J-H) color index
47- 52 F6.3 mag H-K ? 2MASS (H-K) color index
54- 59 F6.3 mag Kmag ? 2MASS KS band magnitude
61- 66 F6.3 mag mROTSE Mean ROTSE unfiltered magnitude
68- 72 F5.3 mag Amp Fourier fit amplitude of oscillation
74- 99 A26 --- ID Previous identification from Simbad
101-124 A24 --- Class Prior classification from Simbad
126-128 A3 --- Note Object flag (1)
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Note (1): Notes as follows:
Yes = In Fourier region where β Lyr are expected
No = Not in Fourier region where β Lyr are expected
1 = RR Lyr candidate identified by Kinemuchi et al. 2006
(Cat. J/AJ/132/1202)
2 = Possible W UMa candidate misidentified as an RR Lyr variable
because it has a period in overlap region (see text)
5 = Possible false period, as discussed in the text
6 = Candidate exibits irregular photometric variations
7 = Candidate exibits semi-regular photometric variations
8 = Candidate does not contain sufficient data for classification,
but is variable
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 31-Dec-2011