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OATS-UNI/TS SEMINAR
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Speaker: Marusa Bradac (Univ. California, Davis, USA)

Title: KECK, VLT, HST, and the universe's largest cosmic telescopes team up to study z~7 galaxies
Date: Tuesday, June 26th, 2012
Time: 11:30
Venue: Villa Bazzoni
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Abstract: The advent of Wide Field Camera 3 (WFC3) on HST enabled us to detect galaxies at z~7. They are likely beacons of the epoch of reionization, which marked the end of the so-called ``Dark Ages'' and signified the transformation of the universe from opaque to transparent. Clusters of galaxies, when used as cosmic telescopes, can greatly simplify the task of studying and finding these galaxies. With a massive cluster one can gain sever al magnitudes of magnification over a typical observing field, enabling imaging and spectroscopic studies of intrinsically lower-luminosity galax ies than would otherwise be observable, even with the largest telescopes. In this talk I will present the new spectroscopy results we have obtained with LRIS@Keck and FORS2@VLT to study these galaxies behind some of the most powerful cosmic telescopes and discuss our future goals with MOSFIRE@Keck.
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Contact: Stefano Borgani (OATS)