Astronomy and Astrophysics – Astronomy
Scientific paper
May 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000aas...196.0701s&link_type=abstract
American Astronomical Society, 196th AAS Meeting, #07.01; Bulletin of the American Astronomical Society, Vol. 32, p.685
Astronomy and Astrophysics
Astronomy
Scientific paper
We present new results from several weak lensing analyses conducted with commissioning data from the Sloan Digital Sky Survey. We show that SDSS data can be used to measure the average mass and halo profile of galaxies accurately to radii approaching 1 h-1 Mpc. Preliminary analyses will be presented showing the dependence of lensing on galaxy environment and type. We also describe the first detection of weak lensing by clusters in SDSS data. We detect the lensing by clusters to a radius of 2.5 h-1 Mpc. These initial results demonstrate the power of weak lensing analyses of SDSS data, and we conclude with a discussion of prospects for the coming year. The SDSS is a joint project of the University of Chicago, Fermilab, the Institute for Advanced Study, the Japan Participation Group, Johns Hopkins University, Max-Planck-Institute for Astronomy, Princeton University, United States Naval Observatory and the University of Washington. Funding has been provided by the Alfred P. Sloan Foundation, the member institutions, NASA, NSF, the U.S. DoE, and the Ministry of Education of Japan.
Centurion Martin
Fischer Paul
Frieman Josh
Jain Bhuvnesh
Joffre Michael
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