NOAO >   Observing Info >   Approved Programs >   2011A-0030

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Program Information for 2011A-0030


PI: John J Salzer, Indiana U., slaz@astro.indiana.edu
Address: Astronomy Department, 727 E. Third Street, Swain West 319, Bloomington, IN 47405 USA

CoI: Angela Parker, Indiana U.
CoI: Martha Haynes, Cornell U.
CoI: Riccardo Giovanelli, Cornell U.
CoI: Eric M Wilcots, U. of Wisconsin, Madison
CoI: Nathalie Haurberg, Indiana U.

Title: Making Hay with ALFALFA: The Star-Formation Properties of an HI-Selected Galaxy Sample

Abstract: We are requesting time through the NOAO Survey Program to carry out an extensive program of narrow-band H$\alpha$ imaging. Our two primary goals are to derive the most accurate value possible for the local star- formation rate (SFR) density and to explore possible environmental impacts on galaxian star-formation properties. Both projects require large, unbiased samples of galaxies. Our target sample is drawn from ALFALFA, a blind HI survey being carried out using the Arecibo 305-m radio telescope. We argue that this HI-selected sample provides the best available catalog of sources to be used for measuring SFRs. We have constructed a {\bf volume-limited sample} of HI-detected objects (553 galaxies).Data for this new sample will be combined with the images from our ongoing narrow-band project currently taking place on the WIYN 0.9-m telescope to yield the largest ($>00$), most comprehensive sample of H$\alpha$ images available beyond the Local Supercluster. We will also be able to use the survey data to address a number of important issues regarding galaxy evolution. All data from both projects will be made available to the community.

Program Type: Survey

Scheduled Nights:
Run 1 (2011A):  KP-2.1m/CFIM -- 13.5n on Mar 24 - Mar 30 2011, May 04 - May 10 2011
Run 1 (2011B):  KP-2.1m/CFIM -- 8n on Oct 27 - Nov 03 2011
Run 1 (2012A):  KP-2.1m/CFIM -- 11.5n on Mar 16 - Mar 27 2012
Run 1 (2012B):  KP-2.1m/CFIM -- 7.5n on Sep 17 - Sep 24 2012
Run 1 (2013A):  KP-2.1m/CFIM -- 16.5n on Mar 04 - Mar 11 2013, Apr 01 - Apr 09 2013


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 >   2011A-0030

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