NOAO > Observing Info > Approved Programs > 2013B-0429
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NOAO > Observing Info > Approved Programs > 2013B-0429 |
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PI: Danielle Nielsen, University of Wisconsin at Madison (Astronomy), nielsen@astro.wisc.edu
Address: Department of Astronomy, 475 North Charter Street, Madison, WI 53706, USA
CoI: Eric Wilcots, University of Wisconsin at Madison (Astronomy)
Title: Exploring the intragroup medium with bent double lobe radio sources
Abstract:
Galaxy groups are the most common environment in which galaxies reside. The
intragroup medium (IGM) of these gravitationally bound structures are thought
to contain a significant fraction of the baryonic content of the local
universe. We have used bent-double lobed radio sources to estimate the
density of these groups by assuming that ram pressure is the cause of the
bending observed in the jets. We are engaged in expanding the sample of
groups hosting bent-double sources to which we apply this method. Knowledge
of the dynamical state and velocity dispersion of these groups is key to our
analysis. We propose to use GMOS to measure the velocities of the member
galaxies in 5 groups hosting bent-double lobed radio sources.
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-0429 |
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