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Paper: Looking at Nuclei: Megamasers and Molecules
Volume: 320, The Neutral ISM in Starburst Galaxies
Page: 167
Authors: Baan, W.; Klockner, H.-R.
Abstract: Molecular emissions are powerful tracers of intense heating and star-formation processes. In this paper we consider the characteristics of Megamaser emission that originate in some active nuclei that are powered by intense star-formation or accretion onto a massive compact object. The OH Megamaser and possibly the H2CO Megamaser activity occurs among the most luminous sources in the population of (Ultra-) Luminous Infrared Galaxies. In addition, we consider the systematic behavior of the line emission of high-density tracer molecules. An evolutionary scenario is presented for ULIRGs that may explain the molecular line ratios observed in the population of FIR galaxies.
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