J/A+A/506/1269 V light curve of WR29 (Gamen+, 2009)
The massive Wolf-Rayet binary LSS 1964 (= WR 29). II. The V light curve.
Gamen R.C., Fernandez-Lajus E., Niemela V.S., Barba R.H.
<Astron. Astrophys. 506, 1269 (2009)>
=2009A&A...506.1269G 2009A&A...506.1269G (SIMBAD/NED BibCode)
ADC_Keywords: Stars, variable ; Photometry, CCD
Keywords: stars: binaries: close - stars: binaries: eclipsing -
stars: binaries: spectroscopic - stars: Wolf-Rayet
Abstract:
WR 29 is a known WN7h+O double-lined binary system with a rather short
period (3.164-days). We search for light variations to determine the
inclination of the system and thus the absolute masses of both
components. We observed photometrically the field of WR 29 between
December, 2002 and February, 2006. We find that the V light of WR 29
varies in phase with the spectroscopic period of 3.16412-days,
presenting two minima corresponding to the conjunctions of the binary
components. Numerical models fitted to the light curve indicate an
orbital inclination of about 44°, and masses of 53M☉ and
42M☉ for the O- and WN-type components, respectively.
Objects:
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RA (2000) DE Designation(s)
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10 50 46.3 -60 28 41 WR29 = LS 1964
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 36 1215 V light curve of WR 29
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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- 12 F12.4 d JD Julian date
14- 19 F6.3 mag Dmag Differential V magnitude (WR29-C1) (1)
21- 25 F5.3 --- Phase Orbital phase
27- 36 A10 --- Config Observatory and configuration
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Note (1): Star C1 is S1113013266, in the GSC2.2 catalog.
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Acknowledgements:
Eduardo Fernandez-Lajus, eflajus(at)fcaglp.unlp.edu.ar
Roberto C. Gamen, rgamen(at)fcaglp.unlp.edu.ar
References:
Niemela & Gamen, Paper I 2000A&A...362..973N 2000A&A...362..973N
(End) Patricia Vannier [CDS] 03-Sep-2009