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J/A+A/397/921       VBLUW photometry of HD 93205            (van Genderen, 2003)

The effect of the apsidal motion on the light curve of the close binary HD 93205 (O3V+O8V). van Genderen A.M. <Astron. Astrophys. 397, 921 (2003)> =2003A&A...397..921V
ADC_Keywords: Stars, double and multiple ; Stars, early-type ; Photometry, VBLUW Keywords: stars: variable: general - stars: binaries: close - stars: early-type - stars: individual: HD 93205 Abstract: The 1982-1985 photometry (VBLUW system) of the O3V+O8V close binary HD 93205 has been rediscussed because of new insights into its true nature and orbital changes. By comparing this data set with the one obtained by Antokhina et al. (2000ApJ...529..463A) in 1993, and using the same ephemeris to construct the light curve in the phase diagram, the effect of the apsidal motion became obvious: a phase shift between the two light curves and a small change of the shape. A phase-locked light variation in the L passband (containing the higher Balmer lines) is clearly present in the 1982-1985 data set and is presumably due to absorption if the O8 star is seen through cooler inter-binary gas, e.g. the bow-shock between the two colliding winds. Objects: ----------------------------------------- RA (2000) DE Designation(s) ----------------------------------------- 10 44 33.7 -59 44 15 HD 93205 ----------------------------------------- File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 56 39 Journal of brightness and colour indices of HD 93205 (1982-1985) in the VBLUW system (in log intensity scale) and the computed brightness VJ of the UBV system
Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 11 F11.3 d HJD Heliocentric Julian date 13- 19 F7.4 mag Vwmag Walraven V magnitude 21- 26 F6.4 mag V-B V-B colour index 28- 34 F7.4 mag B-U B-U colour index 36- 42 F7.4 mag U-W U-W colour index 44- 50 F7.4 mag B-L B-L colour index 52- 56 F5.3 mag VJmag Johnson V magnitude
Acknowledgements: A.M. van Genderen
(End) Patricia Bauer [CDS] 03-Oct-2002
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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