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摘要
We present a new determination of the Galactocentric distance by a pure kinematical model. Two subgroups of components from the Galactic thin disk, the O-B5 stars and the Galactic open clusters, were selected for our analysis. On the basis of kinematical data of around 1200 O-B5 stars, we obtained an estimated value of R-0=8.25 +/- 0.79 kpc, while a similar evaluation from 270 Galactic open clusters gives R-0=7.95 +/- 0.62 kpc. Considering the scatter of R-0 given by individual investigators with different methods, our present determinations agree well with the best value proposed by Reid.
- 出版日期2007
- 单位南京大学
