Abstract
view Abstract Citations (4) References (29) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS A search for emission from vibrationally excited H2. Traub, W. A. ; Carleton, N. P. ; Black, J. H. Abstract A search has been conducted for the 8150-A emission line of interstellar H2 in Orion, in NGC 7027, and in the Rho Oph region, with negative results. In order that the results be consistent with the recently reported observations of H2 emission lines near 2 microns in Orion, the visual extinction must be greater than 10 mag for a 2500-K thermal-excitation model, or greater than 6-11 mag for a shock-excitation model. Finally, an ultraviolet-excitation model is introduced. Publication: The Astrophysical Journal Pub Date: July 1978 DOI: 10.1086/156244 Bibcode: 1978ApJ...223..140T Keywords: Astronomical Spectroscopy; Emission Spectra; Hydrogen Clouds; Nebulae; Astronomical Models; Interstellar Extinction; Molecular Excitation; Molecular Oscillations; Molecular Spectra; Astrophysics; Interstellar Matter:Molecular Hydrogen; Molecular Hydrogen:Orion Nebula full text sources ADS | data products SIMBAD (1)
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