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This profile was last updated on 4/27/15  and contains information from public web pages and contributions from the ZoomInfo community.

Dr. Tommaso Treu

Wrong Dr. Tommaso Treu?

Project's Principal Investigator

University of California Los Angeles , USA
Phone: (310) ***-****  
Email: t***@***.edu
Local Address:  California , United States
405 Hilgard Ave
Los Angeles , California 90095
United States

Company Description: Founded in 1949, UCLA School of Law is the youngest major law school in the nation and has established a tradition of innovation in its approach to teaching,...   more

Employment History


  • Ph.D. , Astronomy and Astrophysics
    Scuola Normale Superiore
83 Total References
Web References
"Astronomers have been looking ..., 5 Mar 2015 [cached]
"Astronomers have been looking to find one ever since," said Tommaso Treu of the University of California Los Angeles, USA, the GLASS project's principal investigator.
Tommaso Treu University of California
Courtesy of Tommaso ..., 5 Mar 2015 [cached]
Courtesy of Tommaso Treu
Tommaso Treu
"The supernova's different light paths are like different routes through Los Angeles traffic," said Tommaso Treu, a professor of physics and astronomy in the UCLA College, a co-author of the research and principal investigator of the Grism Lens Amplified Survey from Space project, or GLASS, that is analyzing the supernova.
Treu said that by studying the delays between the times that the different images reach Earth, astronomers can glean clues about the type of warped-space terrain the supernova's light had to cover.
"With this discovery, we can learn something new about dark matter. The brightness and delays of future images could tell us something about the clumpiness of dark matter," he said, adding that standard cosmological models predict that dark matter is predicted to be clumpy.
"Astronomers have been looking to find one ever since," Treu said.
Tommaso Treu
Tommaso Treu
Tommaso Treu
Courtesy of Tommaso Treu
Scientists 'Weigh' Tiny Galaxy Halfway Across Universe, 4 Oct 2007 [cached]
Second author Tommaso Treu, assistant professor of physics at UCSB , explained that the imaging is made possible by the fact that the newly discovered galaxy is positioned behind a massive galaxy, creating an "Einstein ring.
Treu and his colleagues in the Sloan Lens ACS Survey (SLACS) collaboration are at the forefront of the study of Einstein ring gravitational lenses . With gravitational lensing, light from distant galaxies is deflected on its way to Earth by the gravitational field of any massive object that lies in the way. Because the light bends, the galaxy is distorted into an arc or multiple separate images. When both galaxies are exactly lined up, the light forms a bull's-eye pattern, called an Einstein ring, around the foreground galaxy.
The mass estimate for the galaxy, and the inference that many of its stars have only recently formed, is made possible by the combination of optical and near infrared images from the Hubble Space Telescope with longer wavelength images obtained with the Keck Telescope . "If the galaxy is representative of a larger population, it could be one of the building blocks of today's spiral galaxies, or perhaps a progenitor of modern dwarf galaxies," said Treu.
Another UCSB researcher, Tommaso ..., 20 Jan 2012 [cached]
Another UCSB researcher, Tommaso Treu, was involved in the discovery of the most distant protocluster of newly forming galaxies ever seen, 13.1 billion light years away and composed of five protogalaxies.
The protocluster was found using the Hubble telescope and is helping scientists understand the formation of structures in the early history of the universe. Treu said the discovery reveals a wealth of information about the formation of galaxies.
"It tells us that groups of galaxies are already in place a mere 600 million years after the Big Bang and that the universe is already almost completely ionized by this time," Treu said in an email. "At the time when the light that left these galaxies was emitted, galaxies were much smaller, more irregular in shape and more actively star-forming than present day galaxies."
The discovery represents the oldest galactic structures observable and thus the furthest look back into the history of galaxies in the universe. It was made possible by recent modifications to the Hubble telescope, Treu said.
"We used the infrared camera Wide Field Camera 3 on board the Hubble Space Telescope," Treu said.
An Evening With Dr. Tommaso Treu, 19 Mar 2009 [cached]
Guest Speaker: Dr. Tommaso Treu
The speaker for this evening will be Dr. Tommaso Treu. Dr. Tommaso Treu is an Associate Professor of Physics at the University of California at Santa Barbara. He received his Ph.D. in Astronomy and Astrophysics from the Scuola Normale Superiore, Pisa, Italy, in 2001. He is an observer with broad expertise in extragalactic astronomy and cosmology. He brings knowledge about both ground-based and space-based astronomy, mainly at optical and near-infrared (IR) wavelengths, but also in the X-ray and mid-IR bands. Dr. Treu has been a NASA Hubble Fellow and is currently an Alfred P. Sloan Research Fellow and David and Lucille Packard Research Fellow.
Dr.Treu is a member of the Space Telescope Users Committee and of the University of California Observatory Advisory Committee. He has been a member of time allocation committees for the Hubble Space Telescope, the Spitzer Space Telescope, the Chandra X-Ray Observatory, the W.M. Keck Observatory, and a review panel for the National Science Foundation. He served as external referee for all major astronomical journals (The Astrophysical Journal, Monthly Notices of the Royal Astronomical Society, The Astronomical Journal, Astronomy & Astrophysics), and for the Italian Space Agency, Dutch Science Foundation, Chilean Science Foundation, British Science and Technology Facilities Council, and the Canadian Gemini Time Allocation Committee.
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