A comparison of x-ray and lensing mass estimates in Abell 1689 and Abell 2218

Details A comparison of x-ray and lensing mass estimates in Abell 1689 and Abell 2218 A comparison of x-ray and lensing mass estimates in Abell 1689 and Abell 2218

Nov 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996nuphs..51..114l&link_type=abstract

Nuclear Physics B Proceedings Supplements, v. 51, p. 114-117.

Physics

Nuclear Physics

2

Scientific paper

Estimates of the total gravitational mass in the clusters Abell 1689 and Abell 2218 are derived from the density and temperature distributions of the x-ray emitting intracluster gas under the assumption of hydrostatic equilibrium. The x-ray values are found to be significantly less than recent estimates derived from weak gravitational lensing of background sources. Possible explanations for this discrepancy are discussed.

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