NOAO >   Observing Info >   Approved Programs >   2013A-0537

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Proposal Information for 2013A-0537


PI: Colin Ross, Dalhousie University, cl274187@dal.ca
Address: canada

CoI: Susannah Alaghband-Zadeh, University of Cambridge
CoI: Scott Chapman, Dalhousie University
CoI: Peter Smith, Dalhousie University
CoI: Desika Narayanan, University of Arizona (Astronomy)
CoI: Romeel Dave, University of Arizona
CoI: chris conselice, Nottingham
CoI: Caitlin Casey, Institute for Astronomy, University of Hawaii
CoI: Mark Swinbank, Durham

Title: Gas morpholigies and dyamics of SMGs; comparing the ionized and molecular gas

Abstract: We propose to use NIFS to observe 12 Sub-Millimeter Galaxies (SMGs) which have already been mapped in various transitions of CO from the Bothwell et al. (2012) sample. We will trace the Halpha and [NII] emission lines within the sources, mapping the gas morphologies, dynamics and metallicities. We will compare the ionized and molecular gas components in these SMGs, and test the hypothesis that the extreme star formation observed in these systems is triggered by multiple components merging together. The proposed targets already have high resolution interferometric CO observations available allowing a detailed study of the complicated gas processes occurring in these extreme systems and the link between the ionized and molecular gas. The broad redshift range of the target sample also allows for an investigation into the evolution of the trigger of the intense star formation in SMGs, probing if this burst is an extremely active phase in the formation of the massive ellipticals observed today.


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 >   2013A-0537

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