Relating Galaxy Cluster X-Ray Luminosities to Gravitational Masses in Wide Angle Surveys
Thomas H. Reiprich, Hans Boehringer
Abstract
It is shown that galaxy cluster surveys selecting clusters by their X-ray luminosity effectively select by cluster mass. It is shown that a selection based solely on Abell galaxy richness is less efficient in terms of mass. Furthermore the empirical X-ray luminosity - gravitational mass relation and its scatter is quantified and the relation is compared to predicted relations.
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