| Issue |
A&A
Volume 433, Number 2, April II 2005
|
|
|---|---|---|
| Page(s) | 591 - 596 | |
| Section | Stellar structure and evolution | |
| DOI | https://doi.org/10.1051/0004-6361:20041190 | |
| Published online | 22 March 2005 | |
Orbits of new Hipparcos binaries. I*
1
Special Astrophysical Observatory, N. Arkhyz, Karachai-Cherkesia 369167, Russia e-mail: balega@sao.ru
2
Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
3
Isaac Newton Institute of Chile, SAO RAS Branch, Russia
Received:
29
April
2004
Accepted:
2
August
2004
We present first orbits for 6 new Hipparcos binaries. The orbits were determined from speckle interferometric measurements collected mainly at the 6 m BTA telescope of the Special Astrophysical Observatory in Zelenchuk. Three of the systems, HIP 11352, HIP 14075 and HIP 14230, have late G- or early K-type components, while HIP 14669 = GJ 125, HIP 106972 = GJ 4210 and HIP 111685 = GJ 4287 have M-type components. The periods of the orbits are in the range of 6-28 years. Mass sums and their errors are derived for the systems. The Hipparcos parallax error is the dominating error source of the mass determination.
Key words: stars: binaries: visual / stars: fundamental parameters / stars: late-type
© ESO, 2005
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