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He was the first to detect cosmic shear, or weak lensing by the large-scale structure of the universe. He was also the first to detect a cluster of galaxies through its gravitational effects alone, and the first to combine source redshift information with lensing to probe structure in three dimensions (tomography).
Articles 1–20. Associate Professor of Physics, University of California, Davis - Cited by 10,192 - astrophysics.
As of June 2024 I have 79 refereed papers and 292 nonrefereed publications, with 10,144 total citations and an h-index of 34. For your convenience I provide this link to the full list on NASA’s Astrophysics Data System (once there you can change the sorting from by-citations to by-date).
David Wittman at UC Davis. High-redshift cluster of galaxies discovered through its gravitational effects alone, in the Deep Lens Survey.
May 10, 2018 · David M. Wittman is a professor at the University of California, Davis. He has discovered millions of galaxies as co-PI of the Deep Lens Survey, which was awarded over 100...
Prof. David Wittman was awarded 8 orbits of Hubble Space Telescope time to study collisions of galaxy clusters. These are the largest masses in the universe and a large fraction of their mass is dark matter.
I was lead author on the discovery of gravitational lensing by large-scale structure and on the first discovery of a galaxy cluster via lensing and the first use of tomography in lensing, and I continue to pursue these topics through the Deep Lens Survey and the planned Large Synoptic Survey Telescope described below.
