J/other/PZ/27.2 86 new variables in Andromeda (Dimitrov+, 2007)
Variable stars in NSVS database I. 86 new variables in Andromeda.
Dimitrov D., Popov V.
<Perem. Zvezdy, 27, 2 (2007)>
=2007PZ.....27....2D 2007PZ.....27....2D (SIMBAD/NED BibCode)
ADC_Keywords: Galaxies, nearby ; Stars, variable
Description:
One of the most extensive sky surveys in the recent years is the
Northern Sky Variability Survey (NSVS, Wozniak et al.,
2004AJ....127.2436W 2004AJ....127.2436W). Light curves of about 14000000 objects with
instrumental magnitudes between 8 and 15.5 are included in the
database of that survey, for the period April 1999 - March 2000,
covering all of the Northern hemisphere and reaching DE=-38° in
the South.
To look for different types of variables, we rely only upon internal
NSVS data. We select an area on the sky and check for variability in
the NSVS database. Our test area covers 46 deg in Andromeda, its
coordinates are: 23:00≤RA≤23:45 and 43:30≤DE≤29:30 (2000.0). The
galactic latitude is in the -10° - -20° range. The total
number of NSVS light curves in this area is and every star has between
1 and 4 light curves, the mean value being 1.875 light curves per
star.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 80 136 Variable stars found in the field
notes.dat 80 36 Individual notes
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See also:
B/gcvs : General Catalogue of Variable Stars (Samus+ 2007-2013)
II/140 : New Catalogue of Suspected Variable Stars (Kukarkin+, 1982)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- Seq [1/136] Sequential number
4 A1 --- n_Seq [*] * indicates a note in notes.dat file
6- 17 A12 --- Name USNO B1.0/Tycho2 ID
19- 20 I2 h RAh Right ascension (J2000)
22- 23 I2 min RAm Right ascension (J2000)
25- 29 F5.2 s RAs Right ascension (J2000)
31 A1 --- DE- Declination sign (J2000)
32- 33 I2 deg DEd Declination (J2000)
35- 36 I2 arcmin DEm Declination (J2000)
38- 42 F5.2 arcsec DEs Declination (J2000)
43- 47 F5.2 mag mmax Maximum magnitude
49- 52 F4.2 mag Amp Amplitude of variation
54- 62 F9.5 d Per ? Period
65- 70 A6 --- Type Variable type
72- 80 A9 --- OName Other name
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Byte-by-byte Description of file: notes.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- Seq Star sequential number
5- 80 A76 --- Note Text of the note
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 17-May-2016