J/AcA/56/219 OGLE variable stars in NGC 6259 (Ciechanowska+, 2006)
The Optical Gravitational Lensing Experiment.
Variable stars in the field of open cluster NGC 6259.
Ciechanowska A., Pietrzynski G., Wyrzykowski L., Szewczyk O., Kubiak M.,
Udalski A., Szymanski M.K.
<Acta Astron., 56, 219-236 (2006)>
=2006AcA....56..219C 2006AcA....56..219C (SIMBAD/NED BibCode)
ADC_Keywords: Clusters, open ; Stars, variable ; Magnitudes
Keywords: binaries: eclipsing - stars: oscillations -
open clusters and associations: individual: NGC 6259
Abstract:
We present the results of a search for variable stars in the field of
NGC6259. Altogether 85 variable stars have been discovered. 36 of them
are eclipsing systems. This group contains 13 EA, 2 EB and 21 EW-type
stars. Light curves of two variable stars resemble those of Miras. The
remaining 47 variable stars detected in the field of this open cluster
are most probably highly obscured red giants (OSARG, irregular). For
all detected variable stars we provide their light curves, preliminary
classification, discussion on the possible cluster membership,
equatorial coordinates, finding charts and periods when possible.
Description:
The presented data were collected from July 1997 to September 1999
during 44 nights in the course of the OGLE project (Udalski, Kubiak
and Szymanski, 1997AcA....47..319U 1997AcA....47..319U) at the time, when the weather
conditions were too poor to observe the very dense OGLE fields. All
observations were made with 1.3m Warsaw telescope located at the Las
Campanas Observatory, Chile which is operated by the Carnegie
Institution of Washington.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 86 36 Eclipsing variable stars in NGC 6259
table4.dat 77 49 Miscellaneous variable stars in NGC 6259
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 3 A3 --- VName Variable name (V1-V36)
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- 34 F6.3 mag Vmag ?=- V magnitude
36- 40 F5.3 mag e_Vmag ?=- rms uncertainty on Vmag
42- 47 F6.3 mag Imag I magnitude
49- 53 F5.3 mag e_Imag rms uncertainty on Imag
55- 59 F5.3 mag V-I ?=- V-I colour index
61- 66 F6.4 d Per ?=- Period
68- 73 F6.4 --- Phase ?=- Phase
75- 83 F9.4 d t0 ?=- Time of maximum brightness (HJD-2350000)
85- 86 A2 --- Type Type of eclipsing binary
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Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 3 A3 --- VName Variable name (V37-V85)
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- 34 F6.3 mag Vmag ?=- V magnitude
36- 40 F5.3 mag e_Vmag ?=- rms uncertainty on Vmag
42- 47 F6.3 mag Imag ?=- I magnitude
49- 53 F5.3 mag e_Imag ?=- rms uncertainty on Imag
55- 59 F5.3 mag V-I ?=- V-I colour index
61- 77 A17 --- Type Variable type
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 17-May-2016