J/AZh/87/1087 New variable stars in 66 Oph field (Kolesnikova+, 2010)
New variable stars on digitized Moscow collection plates.
The field of 66 Ophiuchi.
Kolesnikova D.M., Sat L.A., Sokolovsky K.V., Antipin S.V., Belinskii A.A.,
Samus N.N.
<Astron. Zh. 87, 1087 (2010)>
=2010AZh....87.1087K 2010AZh....87.1087K
=2010ARep...54.1000K 2010ARep...54.1000K
ADC_Keywords: Stars, variable ; Photometry
Abstract:
In the course of a program to digitize the astronomical plates of the
Sternberg Astronomical Institute's plate stacks, we are developing
algorithms for searching for new variable stars and studying them
using digitized photographic plates. We have discovered and studied
480 new variable stars in a 10°x10° field of view centered on
66 Ophiuchi. The digitized plate negatives used are from the 40-cm
astrograph, and are 30x30cm in size. These stars include three new
Cepheids of the Galaxy's spherical component, 157 eclipsing binaries,
11 high-amplitude δ Scuti stars (HADSs), 144 RR Lyrae stars, 110
irregular variables (109 LB and one white star), and 55 semi-regular
red variables.
Description:
66 Oph (18 00.3, +4 22, J2000) was the center of 254 plates taken in
1976-1995. In our plate-collection digitizing program, we scan all
plates with a resolution of 2540 dpi (dots per inch), or 1.2" per
pixel.
Individual light curves are available at
http://www.sai.msu.su/groups/cluster/gcvs/digit/mdv/data/mdvNNN.dat
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 36 38 Variable stars of the MDV series discovered in
the pilot projects
table2.dat 88 480 New variable stars
notes.dat 79 92 Notes
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See also:
B/gcvs : General Catalogue of Variable Stars (Samus+ 2007-2010)
http://www.sai.msu.su/groups/cluster/gcvs/digit/mdv/ : MDV Home Page
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- MDV [1/38] Sequential number
5- 6 I2 h RAh Right ascension (J2000)
8- 9 I2 min RAm Right ascension (J2000)
11- 15 F5.2 s RAs Right ascension (J2000)
17 A1 --- DE- Declination sign (J2000)
18- 19 I2 deg DEd Declination (J2000)
21- 22 I2 arcmin DEm Declination (J2000)
24- 27 F4.1 arcsec DEs Declination (J2000)
29- 33 A5 --- Type Variable type
36 I1 --- Ref [2/5] References (1)
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Note (1): Reference as follows:
2 = Sololovsky, 2006PZP.....6...18S 2006PZP.....6...18S
3 = Manannikov et al., 2006PZP.....6...34M 2006PZP.....6...34M
4 = Kolesnikova et al., 2007PZP.....7....3K 2007PZP.....7....3K
5 = Kolesnikova et al., 2007PZP.....7...24K 2007PZP.....7...24K
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- MDV [39/518] Sequential number
5- 6 I2 h RAh Right ascension (J2000)
8- 9 I2 min RAm Right ascension (J2000)
11- 15 F5.2 s RAs Right ascension (J2000)
17 A1 --- DE- Declination sign (J2000)
18- 19 I2 deg DEd Declination (J2000)
21- 22 I2 arcmin DEm Declination (J2000)
24- 27 F4.1 arcsec DEs Declination (J2000)
29- 33 A5 --- Type Variable type
35- 39 F5.2 mag mMax Magnitude at maximum brightness
41- 45 F5.2 mag mMin Magnitude at minimum brightness
46 A1 --- u_mMin Uncertainty flag on magMin
48- 52 F5.2 mag mMin2 ? Magnitude at second minimum brightness
53 A1 --- u_mMin2 Uncertainty flag on magMin2
55- 63 F9.3 d Epoch ? Epoch of extremum brightness (2400000+) (1)
64 A1 --- u_Epoch Uncertainty flag on Epoch
65- 75 F11.7 d Per ? Period
76 A1 --- u_Per Uncertainty flag on Period
78- 88 A11 --- Notes Notes, in notes.dat file
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Note (1): Epochs of minimum brightness are given for eclipsing stars and
epochs of maximum brightness in other cases.
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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- 2 I2 --- Note Note number
4- 79 A76 --- Text Text of the note
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 29-Nov-2010