NOAO > Observing Info > Approved Programs > 2011A-0083
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NOAO > Observing Info > Approved Programs > 2011A-0083 |
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PI: Tim Rawle, University of Arizona (Astronomy), trawle@as.arizona.edu
Address: Department of Astronomy and Steward Observatory, 933 North Cherry Avenue, Tucson, AZ 85721-0065, USA
CoI: John Lucey, University of Durham
CoI: Russell Smith, University of Durham
CoI: Mark Norris, University of North Carolina
Title: The origin of S0 discs in the dense cluster environment
Abstract:
Various mechanisms have been proposed to account for the large population of
S0 galaxies observed in the cores of local rich clusters. While the
transformation of spirals into S0s via star formation quenching is the
favoured model, the process and location within the cluster for removal or
exhaustion of gas is unknown. Stellar population studies are a powerful
diagnostic tool to investigate such mechanisms, but have been largely limited
to the bulge-dominated cores of S0s. By determining the age, metallicity and
[alpha/Fe] for both bulge and disc components of cluster S0s, spanning a wide
range of densities, we can investigate the effect of local environment on
galaxy formation processes. In 2009A we started a program to obtain GMOS
spectroscopy for a carefully selected sample of S0s in the Coma cluster. Here
we propose to complete the project by observing the nine remaining S0s in the
sample.
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 > 2011A-0083 |
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