T
Tommaso Treu
Researcher at University of California, Los Angeles
Publications - 796
Citations - 56051
Tommaso Treu is an academic researcher from University of California, Los Angeles. The author has contributed to research in topics: Galaxy & Redshift. The author has an hindex of 126, co-authored 715 publications receiving 49090 citations. Previous affiliations of Tommaso Treu include Space Telescope Science Institute & University of California.
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A Compact Early-type Galaxy at z = 0.6 Under a Magnifying Lens: Evidence For Inside-out Growth
TL;DR: In this article, a two-component fit is required to model accurately the surface brightness distribution, including an extended low-surface-brightness component, which may arise from the evolution of higher-redshift ''red nuggets' or may already be in place at z ~ 2 but is unobservable due to cosmological surface brightness dimming.
Journal Article
Measuring the Hubble Constant Near and Far in the Era of ELT's
Rachael L. Beaton,Simon Birrer,Ian P. Dell'Antonio,Christopher D. Fassnacht,Danny Goldstein,Chien-Hsiu Lee,Peter Nugent,Michael J. Pierce,Anowar J. Shajib,Tommaso Treu +9 more
TL;DR: In this paper, the authors demonstrate how the approaching era of Extremely Large Telescopes (ELTs) will transform the astrophysical measure of H0 from the limited and few into a fundamentally new regime where (i) multiple, independent techniques are employed with modest use of large aperture facilities and (ii) 1% or better precision is readily attainable.
Dark energy with gravitational lens time delays
TL;DR: In this paper, the authors show that a single lens can provide a distance measurement with 6-7% accuracy (including random and systematic uncertainties), provided sucient data are available to determine the time delay and reconstruct the gravitational potential of the deector.
Journal ArticleDOI
AMUSE-Field I: Nuclear X-ray Properties of Local Field and Group Spheroids across the Stellar Mass Scale
TL;DR: In this paper, the authors present the first results from AMUSE-Field, a Chandra survey designed to characterize the occurrence and intensity of low-level accretion onto supermassive black holes (SMBHs) at the center of local early-type field galaxies.