NOAO >   Observing Info >   Approved Programs >   2012A-0288

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Proposal Information for 2012A-0288


PI: David Rupke, Rhodes College, drupke@gmail.com
Address: Department of Physics, 2000 N. Parkway, Memphis, TN 38112, USA

CoI: Sylvain Veilleux, University of Maryland
CoI: Kory Kreimeyer, University of Maryland

Title: QSO Feedback in Action: Surveying Large-Scale QSO Winds in Major Mergers

Abstract: We have recently discovered the first unambiguous evidence for QSO- mode feedback in a galaxy merger. Massive outflows of gas that quench star formation and regulate black hole growth in merging systems had been predicted by theory but not yet observed. GMOS/IFU observations of Mrk 231 have revealed a massive, wide-angle, kiloparsec-scale outflow with velocities exceeding 1000 km/s. We propose to search for and understand QSO feedback in other major mergers using the GMOS IFU to observe the neutral and warm ionized phases of QSO winds on large scales. By doubling our sample of QSOs with IFU data from three to six, we will much more reliably measure the frequency and properties of large- scale QSO winds in major mergers. We will compare our results to data from an extensive multiwavelength campaign of QSO winds, as well as IFU data on winds in major mergers powered by starbursts. Through observations of QSO feedback, we can inform prescriptions of such feedback in numerical simulations, enabling theorists to greatly improve estimates of their effects in mergers.


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NOAO >   Observing Info >   Approved Programs >   2012A-0288

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