J/AZh/86/158 UBVR light curves of GSC 4596-1254 = SAO 3282 (Volkov+, 2009)
The physical parameters and orbit of the eclipsing binary system
GSC 4596 1254 = SAO 3282.
Volkov I.M., Volkova N.S.
<Astron. Zh. 86, 158 (2009)>
=2009AZh....86..158V 2009AZh....86..158V
=2009ARep...53..136V 2009ARep...53..136V
ADC_Keywords: Binaries, eclipsing ; Photometry, UBVRI
Abstract:
We have obtained the first UBVR photoelectric light curves for a
recently discovered eclipsing binary with a period of 9.33d and
an appreciable eccentricity (e=0.08). We have used these data to
determine the photometric elements of the system for a model with two
spherical stars with linear limb darkening. The high accuracy of the
observations enabled determination of the absolute parameters of the
components using available calibrations. The masses of the components
are 1.28 and 1.08M☉, and their ages are two billion years. The
present orientation of the orbital ellipse is unfavorable for studies
of the apsidal rotation, which is essentially due to relativistic
effects.
Description:
We observed the star for five nights in the Summer and Fall of 2007.
The observations began on the Zeiss-600 reflector (D=600mm, F=7500mm)
of the Zvenigorod Observatory of the Institute of Astronomy of the
Russian Academy of Sciences and a single-channel UBV photometer
designed by I.M.Volkov and equipped with an EMI-9789 photomultiplier.
Objects:
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RA (2000) DE Designation(s)
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19 44 18.4 +81 47 32 GSC 4596-1254 = SAO 3282
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 20 475 Individual observations in V
table4.dat 20 349 Individual observations in B
table5.dat 20 276 Individual observations in R
table6.dat 20 53 Individual observations in U
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Byte-by-byte Description of file: table?.dat
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Bytes Format Units Label Explanations
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1- 13 F13.5 d HJD Heliocentric Julian deate
15- 20 F6.3 mag mag Magnitude (V, B, R or U)
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 12-Mar-2009