期刊
ASTRONOMY & ASTROPHYSICS
卷 492, 期 1, 页码 277-287出版社
EDP SCIENCES S A
DOI: 10.1051/0004-6361:200810395
关键词
astronomical data bases: miscellaneous; stars: formation; stars: circumstellar matter; stars: low-mass, brown dwarfs; stars: Hertzsprung-Russell (HR) and C-M diagrams; Galaxy: open clusters and associations: individual: Collinder 69
资金
- Spanish [2007-65475-C02-02, MEC/Consolider-CSD2006-0070, CAM/PRICIT-S0505/ESP/0361]
- Spanish MEC [AyA2005-04286, AyA2005-24102-E. A]
Context. The physical properties of almost any kind of astronomical object can be derived by fitting synthetic spectra or photometry extracted from theoretical models to observational data. Aims. We want to develop an automatic procedure to perform this kind of fitting to a relatively large sample of members of a stellar association and apply this methodology to the case of Collinder 69. Methods. We combine the multiwavelength data of our sources and follow a work-flow to derive the physical parameters of the sources. The key step of the work-flow is performed by a new VO-tool, VOSA. All the steps in this process are done in a VO environment. Results. We present this new tool, and provide physical parameters such as T(eff), gravity, luminosity, etc. for similar to 170 candidate members of Collinder 69, and an upper-limit for the age of this stellar association. Conclusions. This kind of study of star forming regions, clusters, etc. produces a huge amount of data, very tedious to analyse using the traditional methodology. Thus, they are excellent examples of where to apply the VO techniques.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据