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This profile was last updated on 6/17/13  and contains information from public web pages and contributions from the ZoomInfo community.

Dr. Tommaso Treu

Wrong Dr. Tommaso Treu?


Phone: (805) ***-****  HQ Phone
Email: t***@***.edu
University of California , Santa Barbara
ICA Building
Santa Barbara, California 93106
United States

Company Description: The University of California, Santa Barbara (UCSB) is one of 10 universities in the University of California system, and is one of only 62 research-intensive...   more

Employment History


  • Ph.D. , Astronomy and Astrophysics
    Scuola Normale Superiore
65 Total References
Web References
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.
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.
NSF Awards $1.72 Million to Improve the Keck I Laser Guide Star Adaptive Optics System | W. M. Keck Observatory, 12 June 2009 [cached]
I study topics like galaxy formation, black holes, and gravitational lensing, all of which require the study of extremely faint and small targets," said Tommaso Treu, an astronomer at the University of California, Santa Barbara and the principal scientist for the Observatory's tip-tilt sensor.
Astronomers have long relied on simulated ... [cached]
Astronomers have long relied on simulated data, but it is novel for the fake data to be created independently from the developers of analysis methods, says Tommaso Treu, an astrophysicist at the University of California, Santa Barbara, and an organizer of the contest. "This is something that is becoming more and more common as we become more aware of unconscious bias," he says.
Tommaso Treu
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