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J/A+A/503/651 Variable stars in a VLT/VIMOS field in Carina (Pietrukowicz+ 2009)

Deep census of variable stars in a VLT/VIMOS field in Carina. Pietrukowicz P., Minniti D., Fernandez J.M., Pietrzynski G., Ruiz M.T., Gieren W., Diaz R.F., Zoccali M., Hempel M. <Astron. Astrophys. 503, 651 (2009)> =2009A&A...503..651P
ADC_Keywords: Stars, variable ; Binaries, eclipsing ; Stars, flare ; Photometry Keywords: stars: variables: general - variables: delta Sct - binaries: eclipsing - stars: flare - planetary systems - stars: statistics Abstract: We have searched for variable stars in deep V-band images of a field towards the Galactic plane in Carina. The images were taken with VIMOS instrument at ESO VLT during 4 contiguous nights in April 2005. We detected 348 variables among 50897 stars in the magnitude range between V=15.4 and V=24.5mag. Upon detection, we classified the variables by direct eye inspection of their light curves. All variable objects but 9 OGLE transits in the field are new discoveries. We provide a complete catalog of all variables which includes eclipsing/ellipsoidal binaries, miscellaneous pulsators (mostly delta Scuti-type variables), stars with flares and other (irregular and likely long-period) variables. Only two of the stars in our sample are known to host planets. Our result give some implications for future large variability surveys. Description: Data table with 348 variables detected in the field of Carina. For each object it contain data on: equatorial coordinates, magnitudes and possible periods. Instrumentation: 8.2-m Unit Telescope 3 + VIMOS imager with a scale of 0.205 arcsec/pixel at ESO Very Large Telescope at Paranal Observatory. Date of observations: Apr 9-12, 2005 File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file vimosvar.dat 80 348 Data on detected variables phot/* 28 348 Individual time-series photometry
Byte-by-byte Description of file: vimosvar.dat
Bytes Format Units Label Explanations
1- 4 A4 --- Name Variable identification number, VNNN 7- 8 I2 h RAh Right ascension J2000 (hours) 10- 11 I2 min RAm Right ascension J2000 (minutes) 13- 17 F5.2 s RAs Right ascension J2000 (seconds) 19 A1 --- DE- Declination J2000 (sign) 20- 21 I2 deg DEd Declination J2000 (degrees) 23- 24 I2 arcmin DEm Declination J2000 (minutes) 26- 29 F4.1 arcsec DEs Declination J2000 (seconds) 32- 37 F6.4 d Per ?=0.0000 Period (1) 40- 44 F5.2 mag Vmax ?=00.00 V minimum magnitude (1) 46- 50 F5.2 mag Vmin ?=00.00 V maximum magnitude (1) 52- 56 F5.3 mag Vamp Amplitude in V band 58- 62 F5.2 mag Vmag V magnitude 65- 67 A3 --- Type Variable type (2) 70- 80 A11 --- OName other name, if exists
Note (1): Magic numbers 0.0000 for Per or 00.00 for Vmax,min mean no estimation Note (2): Abbreviations used for different types of variables as follows: del = delta Scuti ecl = eclipsing flr = star with a flare pul = other pulsating variable plf = pulsating star with a flare tra = planetary transiting star var = a variable star
Byte-by-byte Description of file: phot/*
Bytes Format Units Label Explanations
2- 13 F12.6 d MJD Modified Julian Date 16- 21 F6.3 mag Vmag V magnitude 24- 28 F5.3 mag e_Vmag V magnitude error
Acknowledgements: Pawel Pietrukowicz, Pontificia Universidad Catolica de Chile, pietruk(at)
(End) Pawel Pietrukowicz, [PUC, Chile], Patricia Vannier [CDS] 05-Jun-2009
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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