J/MNRAS/402/226 NGC 5053 variables VrI light curves (Arellano Ferro+, 2010)
CCD time-series photometry of the globular cluster NGC 5053: RR Lyrae,
blue stragglers and SX Phoenicis stars revisited.
Arellano Ferro A., Giridhar S., Bramich D.M.
<Mon. Not. R. Astron. Soc., 402, 226-244 (2010)>
=2010MNRAS.402..226A 2010MNRAS.402..226A
ADC_Keywords: Clusters, globular ; Stars, variable ; Photometry, VRI
Keywords: stars: horizontal branch - stars: individual: RR Lyrae -
globular clusters: individual: NGC 5053
Abstract:
We report the results of CCD V, r and I time-series photometry of the
globular cluster NGC 5053. New times of maximum light are given for
the eight known RR Lyrae stars in the field of our images, and their
periods are revised. Their V light curves were Fourier decomposed to
estimate their physical parameters.
Description:
The observations employed in the present work were performed using the
Johnson V, R and I filters and obtained with the 2.0-m telescope of
the Indian Astronomical Observatory (IAO), Hanle, India, located at
4500m above sea level, during several runs between 2006 April and
2009 January. The cluster was observed during a total of 10 nights,
and 151 images were gathered in the Johnson V, 139 in R and 13 in I.
Objects:
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RA (2000) DE Designation(s)
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13 16 27.0 +17 41 52 NGC 5053 = C 1313+179
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
stars.dat 35 37 List of stars
table2.dat 82 5561 V, r, I magnitudes of the RR Lyrae, variable blue
stragglers and new variable stars in NGC 5053
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Byte-by-byte Description of file: stars.dat
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Bytes Format Units Label Explanations
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1- 4 A4 --- Star Star name (1)
6- 14 F9.7 d Per ? Period
16- 35 A20 --- SName Simbad name
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Note (1): Nomenclature note:
BSNN = Cl* NGC 5053 SMBS NN, Sarajedini and Milone, 1995AJ....109..269S 1995AJ....109..269S
NCNN = Cl* NGC 5053 NC NN, Nemec and Cohen, 1989ApJ...336..780N 1989ApJ...336..780N
VNN = New variables, this paper
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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- 4 A4 --- Star Star name
6- 17 F12.4 d HJDV ? Heliocentric Julian date for V-band observation
19- 24 F6.3 mag Vmag ? Johnson V magnitude
26- 30 F5.3 mag e_Vmag ? rms uncertainty on Vmag
32- 43 F12.4 d HJDr ? Heliocentric Julian date for r-band observation
45- 50 F6.3 mag rmag ? Instrumental r magnitude
52- 56 F5.3 mag e_rmag ? rms uncertainty on rmag
58- 69 F12.4 d HJDI ? Heliocentric Julian date for I-band observation
71- 76 F6.3 mag Imag ? Johnson I magnitude
78- 82 F5.3 mag e_Imag ? rms uncertainty on Imag
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 02-Jul-2010