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

Details Two- and Three-Dimensional Maps of Dark Matter Distribution in the GOODS survey Two- and Three-Dimensional Maps of Dark Matter Distribution in the GOODS survey

Dec 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aas...203.8906a&link_type=abstract

American Astronomical Society Meeting 203, #89.06; Bulletin of the American Astronomical Society, Vol. 35, p.1349

Astronomy and Astrophysics

Astronomy

Scientific paper

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.

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