The effect of interlopers on the mass estimation in systems of galaxies

Details The effect of interlopers on the mass estimation in systems of galaxies The effect of interlopers on the mass estimation in systems of galaxies

Aug 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990ap%26ss.170..347p&link_type=abstract

(IAU, European Regional Astronomy Meeting, 11th, La Laguna, Spain, July 3-8, 1989) Astrophysics and Space Science (ISSN 0004-640

Astronomy and Astrophysics

Astrophysics

1

Galactic Clusters, Galactic Mass, Parameter Identification, Anisotropy, Error Analysis, Histograms

Scientific paper

The influence of unbound galaxies in the estimation of mass is tested in
clusters of galaxies. Jacknife techniques have been used to assess the
effect. It is shown that the virial and projected mass estimators are
lowered by a factor of two at least when the samples are cleaned out for
interlopers.

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