A Kinematical Calibration of the Galactocentric Distance

Details A Kinematical Calibration of the Galactocentric Distance A Kinematical Calibration of the Galactocentric Distance

Feb 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007chjaa...7..120s&link_type=abstract

Chinese Journal of Astronomy and Astrophysics, Volume 7, Issue 1, pp. 120-128 (2007).

Astronomy and Astrophysics

Astrophysics

8

Scientific paper

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 R0=8.25+/-0.79 kpc, while a similar evaluation from 270 Galactic open clusters gives R0=7.95+/-0.62 kpc. Considering the scatter of R0 given by individual investigators with different methods, our present determinations agree well with the best value proposed by Reid.

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