Luminous Molecular Hydrogen Emission in the Galaxy System NGC 3690-IC 694
NAVAL RESEARCH LAB WASHINGTON DC E O HULBURT CENTER FOR SPACE RESEARCH
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We report the detection of fine emission of vibrationally excited H2 from the galaxy system NGC 3690-IC 694. The line emission is distributed within the system. The total observed luminosity in the H2 upsilon 1-0 Sl line alone is approximately 1.5 x l0exp 7 solar luminosity. We also detected Brgamma line emission of the system its observed luminosity indicates that at least 4 X 10exp 54 ionizing photons per second are required to maintain ionization of the H II. The H2 is probably heated by shocks, and the mass of hot H2 exceeds 2 x lOexp 4 solar mass.
- Atomic and Molecular Physics and Spectroscopy