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Open star clusters and Galactic structure

Published online by Cambridge University Press:  07 March 2018

Yogesh C. Joshi
Affiliation:
Aryabhatta Research Institute of Observational Sciences, Nainital, India - 263002 email: yogesh@aries.res.in
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Abstract

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.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2018 

References

Joshi, Y. C., 2005, MNRAS, 362, 1259 CrossRefGoogle Scholar
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Kharchenko, N. V., Piskunov, A. E., Schilbach, E., et al., 2013, A&A, 2013, 558, 53 Google Scholar
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Scholz, R.-D., Kharchenko, N. V., Piskunov, A. E., et al., 2015, A&A, 581, 39 Google Scholar

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