Maximumlikelihood estimation of precession corrections and kinematic parameters
Abstract
A maximumlikelihood algorithm for determining precession corrections and stellar kinematic parameters is presented. It takes into account the ellipsoidal distribution of residual velocities, as well as observational errors. Numerical tests of the algorithm and the least squares method using a set of synthetic data are described. Both the algorithm of maximumlikelihood and the least squares method are applied to the 512 FK4/FK4 sup. stars selected by Fricke (1967).
 Publication:

Vistas in Astronomy
 Pub Date:
 1988
 DOI:
 10.1016/00836656(88)902899
 Bibcode:
 1988VA.....31..677W
 Keywords:

 Astrometry;
 Maximum Likelihood Estimates;
 Precession;
 Stellar Motions;
 Least Squares Method;
 Normal Density Functions;
 Velocity Distribution;
 Astronomy