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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Journal ArticleDOI
First Results from the Lick AGN Monitoring Project: The Mass of the Black Hole in Arp 151
Misty C. Bentz,Jonelle L. Walsh,Aaron J. Barth,Nairn Baliber,Nairn Baliber,Nicola Bennert,Nicola Bennert,Gabriela Canalizo,Alexei V. Filippenko,Mohan Ganeshalingam,Elinor L. Gates,Jenny E. Greene,M. G. Hidas,M. G. Hidas,Kyle D. Hiner,Nicholas Lee,Weidong Li,Matthew A. Malkan,Takeo Minezaki,Frank J. D. Serduke,J. Shiode,Jeffrey M. Silverman,Thea N. Steele,Daniel Stern,Rachel Street,Rachel Street,Carol E. Thornton,Tommaso Treu,Xiaofeng Wang,Xiaofeng Wang,Jong-Hak Woo,Jong-Hak Woo,Yuzuru Yoshii +32 more
TL;DR: In this article, the mass of the central black hole in Arp 151 was determined by measuring the width of the Hbeta emission line in the variable spectrum, which was then matched with the expected masses in the range of ~10^6-10^7 M_sun.
Journal ArticleDOI
BROAD Hβ EMISSION-LINE VARIABILITY IN A SAMPLE OF 102 LOCAL ACTIVE GALAXIES
Jordan N. Runco,Maren Cosens,Vardha N. Bennert,Bryan Scott,S. Komossa,Matthew A. Malkan,Mariana S. Lazarova,Matthew W. Auger,Tommaso Treu,Daeseong Park +9 more
TL;DR: Runco et al. as discussed by the authors studied profile changes of the broad Hbeta emission line within the 3-9 year time-frame between the two sets of spectra, and discussed potential causes for these changing-look AGNs.
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Data mining for gravitationally lensed quasars
TL;DR: A systematic exploration of machine learning techniques and demonstrate that a two step strategy can be highly effective in target/candidate selection of Gravitationally lensed quasars.
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Extending the Calibration of C iv-based Single-epoch Black Hole Mass Estimators for Active Galactic Nuclei
Daeseong Park,Daeseong Park,Daeseong Park,Aaron J. Barth,Jong-Hak Woo,Matthew A. Malkan,Tommaso Treu,Tommaso Treu,Vardha N. Bennert,Roberto J. Assef,A. Pancoast +10 more
TL;DR: In this paper, the authors provide an updated calibration of the CIV broad emission line-based single-epoch (SE) black hole (BH) mass estimators for active galactic nuclei (AGNs) using new data for six reverberation-mapped AGNs at redshift $z=0.005-0.234$ with BH masses (bolometric luminosities) in the range $10^{6.5-9.5}-10^{7.9$).
Journal ArticleDOI
TDCOSMO IV: Hierarchical time-delay cosmography -- joint inference of the Hubble constant and galaxy density profiles
Simon Birrer,Anowar J. Shajib,A. Galan,M. Millon,Tommaso Treu,Adriano Agnello,Matthew W. Auger,Geoff C. F. Chen,Lise Christensen,Thomas E. Collett,Frederic Courbin,Christopher D. Fassnacht,Christopher D. Fassnacht,Léon V. E. Koopmans,Philip J. Marshall,Ji Won Park,Cristian E. Rusu,Dominique Sluse,Chiara Spiniello,Chiara Spiniello,Sherry H. Suyu,Sherry H. Suyu,Sherry H. Suyu,Sebastian Wagner-Carena,Kenneth C. Wong,Matteo Barnabè,Adam S. Bolton,Oliver Czoske,Xuheng Ding,Joshua A. Frieman,Joshua A. Frieman,L. Van de Vyvere +31 more
TL;DR: In this paper, a hierarchical approach was proposed to estimate the mass-sheet transform (MST) with respect to the stellar anisotropic kinematics of the lensing observables, which was validated on hydrodynamically simulated lenses.