NOAO >   Observing Info >   Approved Programs >   2016A-0107

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Program Information for 2016A-0107


PI: Tommaso Treu, UCLA, tt@astro.ucla.edu
Address: Physics Department, Physics and Astronomy Building, Los Angeles, CA 90095 USA

CoI: Adriano Agnello, UCLA
CoI: Daniel Gilman, UCLA
CoI: Veronica Motta, Universidad de Valparaiso
CoI: Timo Anguita, Universidad Andres Bello
CoI: Richard McMahon, University of Cambridge
CoI: Chris Fassnacht, UC Davis
CoI: C E Rusu, UC Davis
CoI: Ferndanda Ostrovski, University of Cambridge

Title: High-resolution imaging confirmation of gravitationally lensed quasars discovered in STRIDES

Abstract: Gravitationally lensed quasars are valuable probes of: (1) cosmological distances and the expansion history of the Universe; (2) the luminous and dark matter content in massive lens galaxies up to $zsim1$; (3) the co-evolution of quasars and their host galaxies since $zsim2$; (4) inner structure of AGN. Progress in these fields has been limited just by the paucity of systems with good ancillary data. For this reason, as STRIDES team we have selected a large sample of new lensed quasar candidates, previously undiscovered, in the Southern Hemisphere. Use of diverse techniques, from data mining to multi-band modelling, maximizes the number of high-grade candidates. From a final set of 150 prioritized candidates in the DES Y1+Y2, VST-ATLAS DR1 and SDSS, we expect to confirm 75 lensed quasars at least, the rest being mainly binary quasars, which are interesting astrophysical systems themselves. Six nights are required on the SOAR Adaptive Optics Module in $z^{prime}$ band for this program. With our Chilean collaborators, we are splitting the time evenly between Chilean and North-American allocation. Here we request three nights.

Program Type: Standard/Extragalactic

Scheduled Nights:
Run 1 (2016A):  SOAR/SAMI -- 3n on Jun 24 - Jun 26 2016


National Optical Astronomy Observatory, 950 North Cherry Avenue, P.O. Box 26732, Tucson, Arizona 85726, Phone: (520) 318-8000, Fax: (520) 318-8360



NOAO >   Observing Info >   Approved Programs >   2016A-0107

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