A weak lensing study of the Coma cluster

Abstract

Due to observational constraints, dark matter determinations in nearby clusters based on weak lensing are still extremely rare, in spite of their importance for the determination of cluster properties independent of other methods. We present a weak lensing study of the Coma cluster (redshift 0.024) based on deep images obtained at the CFHT. After obtaining photometric redshifts for the galaxies in our field based on deep images in the u (1x1 deg2), and in the B, V, R and I bands (42'x52'), allowing us to eliminate foreground galaxies, we apply weak lensing calculations on shape measurements performed in the u image. We derive a map of the mass distribution in Coma, as well as the radial shear profile, and the mass and concentration parameter at various radii. We obtain M_200c = 5.1+4.3-2.1 x10^14 Msun and c_200c=5.0+3.2-2.5, in good agreement with previous measurements. With deep wide field images it is now possible to analyze nearby clusters with weak lensing techniques, thus opening a broad new field of investigation.

References in corpus (7)

• Concentration, Spin and Shape of Dark Matter Haloes as a Function of the Cosmological Model: WMAP1, WMAP3 and WMAP5 results
• The Shear TEsting Programme 2: Factors affecting high precision weak lensing analyses
• Weak lensing survey of galaxy clusters in the CFHTLS Deep
• Deep and wide field imaging of the Coma cluster: the data
• Spatial variations of the optical galaxy luminosity functions and red sequences in the Coma cluster: clues to its assembly history
• Photometric redshifts as a tool to study the Coma cluster galaxy populations
• Orientations of very faint galaxies in the Coma cluster

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