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Galactic kinematics near the sun from open clusters†

Published online by Cambridge University Press:  01 October 2007

M. Shen
M. Shen*
Affiliation:
Department of Astronomy, Nanjing University, China email: [email protected]
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Abstract

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A catalogue of open clusters is used to analyze the Galactic kinematics near the Sun. The Galactic open clusters, which are components of Galactic thin disk, were selected for our analysis. Based on kinematical data for around 270 Galactic open clusters, we found the Galactic rotation curve remains flat near the Sun. We also found Ve = 6.40±3.39 km s−1 inside the solar circle, which shows a weak trend of stars moving toward the Galactic anti-center.

Keywords

Galaxy: kinematics and dynamicsopen clusters and associations: general
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 3 , Symposium S248: A Giant Step: from Milli- to Micro-arcsecond Astrometry , October 2007 , pp. 502 - 503
Copyright
Copyright © International Astronomical Union 2008

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