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Astrophysics and Astronomy

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University of Massachusetts Amherst

Gopal Narayanan

2013

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The Lmt Galaxies 3 Mm Spectroscopic Survey: First Results, D. Rosa Gonzalez, P. Schloerb, O. Vega, L. Hunt, Gopal Narayanan, D. Calzetti, M. Yun, E. Terlevich, R. J. Terlevich, Y. D. Mayya, M. Chavez, A. Montana, A. M. Perez Garcia Jan 2013

The Lmt Galaxies 3 Mm Spectroscopic Survey: First Results, D. Rosa Gonzalez, P. Schloerb, O. Vega, L. Hunt, Gopal Narayanan, D. Calzetti, M. Yun, E. Terlevich, R. J. Terlevich, Y. D. Mayya, M. Chavez, A. Montana, A. M. Perez Garcia

Gopal Narayanan

The molecular phase of the interstellar medium (ISM) in galaxies offers fundamental insight for understanding star-formation processes and how stellar feedback affects the nuclear activity of certain galaxies. We present here Large Millimeter Telescope spectra obtained with the Redshift Search Receiver, a spectrograph that covers simultaneously the 3 mm band from 74 to 111 GHz with a spectral resolution of around 100 km/s. Our selected galaxies, have been detected previously in HCN, and have different degrees of nuclear activity — one normal galaxy (NGC 6946), the starburst prototype (M82) and two %ultraluminous infrared galaxies (ULIRGs, IRAS 17208-0014 and Mrk 231). …