| Issue |
A&A
Volume 437, Number 2, July II 2005
|
|
|---|---|---|
| Page(s) | 769 - 774 | |
| Section | Astronomical instrumentation | |
| DOI | https://doi.org/10.1051/0004-6361:20042448 | |
| Published online | 21 June 2005 | |
Photometric study of the eclipsing binary V1034 Sco
1
Astronomy Group, Vrije Universiteit Brussels (VUB), Pleinlaan 2, 1050 Brussels, Belgium e-mail: [ybouzid;csterken]@vub.ac.be
2
Astronomical Institute of the Slovak Academy of Sciences, 05960 Tatranská Lomnica, The Slovak Republic e-mail: pribulla@ta3.sk
Received:
29
November
2004
Accepted:
14
March
2005
We present multi-colour Strömgren photometry of the eclipsing binary V1034 Sco
in the galactic open cluster NGC 6231, providing for the first time a full coverage
of the orbital period (
days) and a complete analysis of the orbit. This extensive
new photometry was analyzed together with multiband spectroscopy and results in an improved ephemeris,
photometric elements and absolute parameters of the components.
The system is close, but clearly detached. The masses of the components 
and 
do not correspond to the published spectral classification
(O9III + B1III). The parameters of the components are consistent with the main-sequence luminosity
class. We independently derive a distance modulus 
.
Key words: instrumentation: photometers / binaries: eclipsing / methods: data analysis / methods: observational / techniques: photometric / Hertzspring-Russell and C-M diagrams
© ESO, 2005
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