NOAO >   Observing Info >   Approved Programs >   2014B-0079

Small NOAO Logo

Proposal Information for 2014B-0079


PI: Guilin Liu, Johns Hopkins University, liu@pha.jhu.edu
Address: Dept of Physics and Astronomy, 3400 N. Charles St., Baltimore, MD 21210, USA

CoI: Nadia L. Zakamska, Johns Hopkins University
CoI: Michael A. Strauss, Princeton University
CoI: Jenny E. Greene, Princeton University
CoI: Rachael Alexandroff, Johns Hopkins University

Title: Quasar Feedback at the Peak of the Galaxy Formation Epoch

Abstract: The correlations between properties of supermassive black holes and stellar spheroids in galaxies imply a physical connection between these two components. Using Gemini GMOS IFU, we demonstrated that powerful ionized gas winds are ubiquitous in luminous radio-quiet z~ 0.5 quasars. We now extend this study to the era of peak galaxy formation and quasar activity when quasar feedback likely shaped the properties of massive galaxies. Our GMOS IFU observations of 5 quasars at z~ 3 are now underway, and we plan for fall observations. We propose a GMOS IFU survey to map the spatial distribution and kinematics of Ly(alpha) and N \sc v 1240Aemission around 5 obscured quasars at z=3-3.3 that are extremely luminous (L_\rm Ly(alpha)~10^45 erg s^- 1). Obscured quasars likely constitute the majority of the quasar population and represent the early enshrouded phase of black hole growth, luminous obscured quasars are thus the most likely sites of quasar feedback, as we found at low redshifts. We will look for quasar- driven outflows, and directly probe the effects of quasars on their galaxy-wide and intergalactic environments close to the peak of the galaxy formation epoch.


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 >   2014B-0079

noaoprop-help@noao.edu

Small NOAO Logo