Application of maximum likelihood and Monte Carlo methods to local studies of stellar velocity fields

Details Application of maximum likelihood and Monte Carlo methods to local studies of stellar velocity fields Application of maximum likelihood and Monte Carlo methods to local studies of stellar velocity fields

Nov 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983esasp.201...85o&link_type=abstract

In ESA Statist. Methods in Astron. p 85-89 (SEE N84-19196 09-89)

Astronomy and Astrophysics

Astronomy

2

Galaxies, Maximum Likelihood Estimates, Monte Carlo Method, Velocity Distribution, Equations Of Motion, Iterative Solution, Radial Velocity

Scientific paper

The gradients of the ellipsoid of residual velocity in the galactic plane in the directions of the center and of galactic rotation are calculated. A maximum likelihood algorithm for the equations of motion and radial velocity is outlined. The resulting system of nonlinear equations is tackled by a Monte Carlo method, with random sampling of solutions. Successive sampling enables errors to be detected, avoiding the need for numerical simulation. A large number of unknown variables can be included.

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