Evaluating GAIA performances on eclipsing binaries - III. Orbits and stellar parameters for UW LMi, V432 Aur and CN Lyn

被引：18

作者：

Marrese, PM

Munari, U ^{[1
]}

Siviero, A

Milone, EF

Zwitter, T

Tomov, T

Boschi, F

Boeche, C

机构：

[1] Osserv Astron Padova, Sede Asiago, I-36012 Asiago, VI, Italy

[2] Univ Padua, Dipartimento Astron, Osservatorio Astrofis, I-36012 Asiago, VI, Italy

[3] Univ Padua, CISAS, I-35100 Padua, Italy

[4] Univ Calgary, Dept Phys & Astron, Calgary, AB T2N 1N4, Canada

[5] Univ Ljubljana, Dept Phys, Ljubljana 1000, Slovenia

[6] Nicholas Copernicus Univ, Ctr Astron, PL-87100 Torun, Poland

来源：

ASTRONOMY & ASTROPHYSICS | 2004年 / 413卷 / 02期

关键词：

surveys : GAIA; stars : fundamental parameters; binaries : eclipsing; binaries : spectroscopic;

D O I：

10.1051/0004-6361:20031544

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The orbits and physical parameters of three detached F and G-type eclipsing binaries have been derived combining Hipparcos H-P photometry with 8480-8740 Angstrom ground-based spectroscopy, simulating the photometric + spectroscopic observations that the GAIA mission will obtain. Tycho B-T and V-T light curves are too noisy to be modeled for the three targets, and only mean Tycho colors are retained to constrain the temperature. No previous combined photometric + spectroscopic solution exists in the literature for any of the three targets. Quite remarkably, CN Lyn turned out to be an equal-masses F5 triple system. Distances from the orbital solutions agree within the astrometric error with the Hipparcos parallaxes.

引用

页码：635 / 642

页数：8

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