Luminous Molecular Hydrogen Emission in the Galaxy System NGC 3690-IC 694

Abstract

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 S(l) line alone is approximately 1.5 x l0(exp 7) solar luminosity. We also detected Br(gamma) line emission of the system; its observed luminosity indicates that at least 4 X 10(exp 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 lO(exp 4) solar mass.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1983
Accession Number
ADA464696

Entities

People

  • Janet M. Benson
  • John Fischer
  • M. Simon
  • P. M. Solomon

Organizations

  • United States Naval Research Laboratory

Tags

DTIC Thesaurus Topics

  • Abstracts
  • Availability
  • Classification
  • Contracts
  • Detection
  • Elements
  • Emission
  • Hydrogen
  • Information Operations
  • Instructions
  • Ionization
  • Luminosity
  • Military Research
  • Monitoring
  • Security

Fields of Study

  • Physics

Readers

  • Astronomy and Astrophysics.
  • Mathematics or Statistics
  • Spectroscopy.