Article,
VOSA: virtual observatory SED analyzer. An application to the Collinder 69 open cluster
\aap, (December 2008)
DOI: 10.1051/0004-6361:200810395
Abstract
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. <BR
/>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. <BR />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. <BR />Results: We present this new
tool, and provide physical parameters such as T\_eff, gravity,
luminosity, etc. for ˜170 candidate members of
Collinder 69, and an upper-limit for the age of this stellar
association. <BR />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.
Table 2 is only available in electronic form at the CDS via
anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via
http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/492/277
Tags
- (hr)
- 14mast
- 69,
- and
- associations:
- astronomía
- astronomical
- astrophysics
- bases:
- brown
- c-m
- circumstellar
- clusters
- collinder
- data
- diagrams,
- dwarfs,
- formation,
- galaxy:
- hertzsprung-russell
- individual:
- low-mass,
- matter,
- miscellaneous,
- open
- stars:
