The Search for Powerful Molecular Hydrogen Emission in Hickson Compact Groups

Details The Search for Powerful Molecular Hydrogen Emission in Hickson Compact Groups The Search for Powerful Molecular Hydrogen Emission in Hickson Compact Groups

Mar 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008sptz.prop50764a&link_type=abstract

Spitzer Proposal ID #50764

Astronomy and Astrophysics

Astronomy

Scientific paper

We propose to search for powerful molecular hydrogen emission in 29 Hickson Compact Groups of galaxies. The proposal is the first systematic attempt to understand the new class of H2-powerful galaxies, called MOHEGs, which have recently been discovered by Spitzer. These galaxies are characterized as having huge luminosities emitted in the pure-rotational lines of H2 in the MID-IR, and are very likely shock excited. This proposal targets the very environments in which MOHEGs have been discovered, and will for the first time attempt to understand the conditions that lead to this activity. The results will have lasting value for IR astronomy, providing a starting point for similar searches of H2 bright galaxies at high-z with the next generation of IR telescopes.

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