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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 (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: ----------------------------------------- RA (2000) DE Designation(s) ----------------------------------------- 10 50 46.3 -60 28 41 WR29 = LS 1964 ----------------------------------------- File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table2.dat 36 1215 V light curve of WR 29
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
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
Note (1): Star C1 is S1113013266, in the GSC2.2 catalog.
Acknowledgements: Eduardo Fernandez-Lajus, eflajus(at) Roberto C. Gamen, rgamen(at) References: Niemela & Gamen, Paper I 2000A&A...362..973N
(End) Patricia Vannier [CDS] 03-Sep-2009
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