NOAO > Observing Info > Approved Programs > 2013B-0104
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NOAO > Observing Info > Approved Programs > 2013B-0104 |
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PI: David Rupke, Rhodes College, drupke@gmail.com
Address: 2000 N. Parkway, Memphis, TN, 38112, USA
CoI: Nahum Arav, Virginia Polytechnic Institute
Title: Verifying the Spatial Extent of QSO Outflows Discovered in Absorption
Abstract:
Two recent lines of evidence point to the existence of QSO feedback in the
form of large-scale outflows: (1) detections of large-scale, high-velocity
winds in mergers containing QSOs; (2) new, sensitive observations and
detailed photoionization modeling of excited transitions in UV absorbers in
QSOs. The first method has the strength of direct spatial resolution, while
the second probes a larger range of ionization and density. We propose to
connect these two probes by observing three low-redshift AGN which have
UV-absorbing and outflowing clouds which are indirectly inferred to lie at
radii of 1-10 kpc. We will use the GMOS IFU to probe the spatial extent of
ionized emission line and neutral absorption line gas in these systems. The
optical and UV diagnostics should measure gas clouds with similar physical
conditions; thus the spatially-resolved optical data will allow us to confirm
and quantify the sizes of the outflows discovered in the UV. This would be a
major step forward in constraining the sizes and structure of outflows
previously detected using only single-aperture UV spectroscopy, and thereby
their masses, energetics and potential to serve as feedback.
National Optical Astronomy Observatory, 950 North Cherry Avenue, P.O. Box 26732, Tucson, Arizona 85726, Phone: (520) 318-8000, Fax: (520) 318-8360
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NOAO > Observing Info > Approved Programs > 2013B-0104 |
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