AAS 203rd Meeting, January 2004
Session 89 Galaxy Clusters at High Redshift
Poster, Wednesday, January 7, 2004, 9:20am-6:30pm, Grand Hall

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[89.06] Two- and Three-Dimensional Maps of Dark Matter Distribution in the GOODS survey

J. Albert, J. Rhodes, C. Conselice, R. Ellis (California Institute of Technology), A. Refregier (CEA Saclay), K. Bundy (California Institute of Technology)

We present measurements of weak gravitational lensing from large-scale structure. Using the two 10'x15' GOODS fields taken with the Hubble Space Telescope (HST) ACS camera, along with supporting ground-based observations in the U and K bands, we measure the ellipticities and photometric redshifts of galaxies in the redshift range 0 to 1.5. We use shear measurements of ~100 galaxies per sq.~arcmin to determine the mass distribution. We additionally subdivide the galaxy sample by redshift to determine some basic tomographic information. We present maps of the mass distribution in the two fields and correlate this dark matter distribution with the visible light.

The author(s) of this abstract have provided an email address for comments about the abstract: justin@hep.caltech.edu

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Bulletin of the American Astronomical Society, 35#5
© 2003. The American Astronomical Soceity.