Dynamic evidence on massive coronas of galaxies

Details Dynamic evidence on massive coronas of galaxies Dynamic evidence on massive coronas of galaxies

Jul 1974

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974natur.250..309e&link_type=abstract

Nature, Volume 250, Issue 5464, pp. 309-310 (1974).

Astronomy and Astrophysics

Astronomy

166

Scientific paper

A LONGSTANDING unresolved problem in galactic astronomy is the mass discrepancy observed in clusters of galaxies. The virial mass of the cluster per galaxy and the mass-luminosity ratio are considerably larger than the corresponding quantities for individual galaxies. This discrepancy cannot be a result of expansion or be because of the recent origin of clusters: these ideas contradict our present knowledge of the physical evolution and ages of galaxies1. Therefore it is necessary to adopt an alternative hypothesis: that the clusters of galaxies are stabilised by hidden matter.

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