Maximum likelihood estimation of the mean parallax and kinematic parameters of the Pleiades

Details Maximum likelihood estimation of the mean parallax and kinematic parameters of the Pleiades Maximum likelihood estimation of the mean parallax and kinematic parameters of the Pleiades

May 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997acasn..38..113c&link_type=abstract

Acta Astronomica Sinica, vol. 38, p. 113

Astronomy and Astrophysics

Astronomy

2

Pleiades Cluster, Parallax, Maximum Likelihood Estimates, Velocity Measurement, Distance, Celestial Mechanics

Scientific paper

A new approach for the simultaneous determination of the distance and kinematic parameters as well as their dispersions in a moving cluster is applied to the Pleiades cluster. We have found that the distance of the cluster is d = 135.56 +/- 0.72 pc with a dispersion sigma(d) = 7.66 +/- 0.80 pc. Its space velocity V = 25.94 +/- 0.13 km/s with a dispersion of 0.58 +/- 0.09 km/s. The coordinates of the convergent point are (A, D) = (101.95 +/- 0.47 deg, -41.36 +/- 0.29 deg).

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