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Open star clusters and Galactic structure

Published online by Cambridge University Press:  07 March 2018

Yogesh C. Joshi Open the ORCID record for Yogesh C. Joshi [Opens in a new window]
Yogesh C. Joshi*
Affiliation:
Aryabhatta Research Institute of Observational Sciences, Nainital, India - 263002 email: yogesh@aries.res.in
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Abstract

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In order to understand the Galactic structure, we perform a statistical analysis of the distribution of various cluster parameters based on an almost complete sample of Galactic open clusters yet available. The geometrical and physical characteristics of a large number of open clusters given in the MWSC catalogue are used to study the spatial distribution of clusters in the Galaxy and determine the scale height, solar offset, local mass density and distribution of reddening material in the solar neighbourhood. We also explored the mass-radius and mass-age relations in the Galactic open star clusters. We find that the estimated parameters of the Galactic disk are largely influenced by the choice of cluster sample.

Keywords

open clusters: general; Galaxy: evolutionGalaxy: structure,method: statisticalastronomical data bases
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 12 , Symposium S330: Astrometry and Astrophysics in the Gaia sky , April 2017 , pp. 227 - 228
Copyright
Copyright © International Astronomical Union 2018 

References

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