J/AZh/92/323 V1239 Her light curves in quiescence (Khruzina+, 2015)
The dwarf nova V1239 Herculis in quiescence.
Khruzina T.S., Golysheva P.Yu., Katysheva N.A., Shugarov S.Yu., Shakura N.I.
<Astron. Zh. 92, 323 (2015)>
=2015AZh....92..323K 2015AZh....92..323K
=2015ARep...59..288K 2015ARep...59..288K
ADC_Keywords: Stars, variable ; Photometry
Abstract:
The results of a study of the integrated brightness of the SU UMa
eclipsing binary V1239 Her are presented. The system was monitored on
nine nights in 2013-2014 when the binary was in quiescence. The
orbital period is refined (Porb=0.100082222(2)d) and the system's
light curves obtained. These curves provide evidence for active
processes in the system between outbursts: the depths of both minima
and the amplitude of the pre-eclipse hump vary, and one of the light
curves exhibits no hump at all. The parameters of the accretion disk,
hot spot, and gas stream in V1239 Her for several epochs are
determined in a "combined" model taking into account the
contributions to the total radiation flux from the opaque part of the
gas stream and the hot spot on the lateral surface of the disk.
Description:
Our observations of V1239 Her began in 2004 and continued until July
2014. This paper presents the results of our analysis for data from
nine nights in 2013-2014 obtained without a filter (in white, or
integrated, light) during the system's quiescence. We observed the
object with the 1.25-m telescope of Moscow State University's
Crimean Station using a VersArray 1340 CCD, with the 60-cm Zeiss-600
telescope of the Astronomical Institute of the Slovak Academy of
Sciences (Tatranska Lomnica, Slovak Republic) using a FLI ML 3041 CCD,
and with the Zeiss-1000 telescope of the Special Astrophysical
Observatoty (SAO, Russian Academy of Sciences) using a E2V 4000x2000
CCD camera.
Objects:
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RA (2000) DE Designation(s)
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17 02 13.25 +32 29 54.3 V1239 Her = V* V1239 Her
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 31 429 Mean light curves of V1239 Her obtained in 2013-2014
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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- 7 I7 d JD Julian date of the curve
9- 14 F6.4 --- Phase [0/1] Phase
16- 21 F6.4 mag dmag [5.4/7.3] Magnitude difference between the
target and the comparison star
23- 28 F6.4 mag e_dmag [0.03/0.09] rms uncertainty on dmag
30- 31 I2 --- n [1/20] Number of observations
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 03-Sep-2015