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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).
Jun 29, 2023 · A mathematician working in the life sciences and an astrophysicist studying dark matter from the College of Letters and Science at UC Davis are among the recent cohort awarded Chancellor’s Fellowships for Diversity, Equity and Inclusion.
David Wittman at UC Davis. High-redshift cluster of galaxies discovered through its gravitational effects alone, in the Deep Lens Survey.
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.
David Wittman at UC Davis. Animations for Understanding Astrophysics. If a picture is worth a thousand words, then an interactive figure is worth even more. I have worked with a series of UC Davis undergraduates to produce these interactive tools for understanding a variety of astronomy concepts.
