Accession Number:

ADA464696

Title:

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

Descriptive Note:

Journal article

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON DC E O HULBURT CENTER FOR SPACE RESEARCH

Report Date:

1983-10-01

Pagination or Media Count:

5.0

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 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.

Subject Categories:

  • Astrophysics
  • Astronomy
  • Atomic and Molecular Physics and Spectroscopy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE