Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984abas.symp..164d&link_type=abstract
In NASA. Ames Research Center Airborne Astron. Symp. p 164-171 (SEE N85-17848 08-89)
Astronomy and Astrophysics
Astronomy
Astronomical Spectroscopy, Emission Spectra, Hydrogen, Infrared Astronomy, Interstellar Matter, Near Infrared Radiation, Orion Constellation, C-141 Aircraft, Infrared Radiation, Line Spectra, Molecular Clouds, Molecular Structure, Radiation Sources, Shock Fronts, Stellar Spectra
Scientific paper
A synopsis of current research with near infrared airborne spectroscopy of the Orion molecular hydrogen emission line source is presented. It is suggested that (H2) is the most abundant molecular species in the interstellar medium and is of paramount importance to understand its behavior and distribution in that medium. The H2 has no permanent electric dipole moment which precludes dipole transitions. It is, however, detected in absorption against background starlight by UV electronic transitions and in the IR through electric quadrupole rotation/vibration and pure rotation emission lines. The physical parameters of this region, in the context of their relationships to other members of the complex family of Orion objects, molecular clouds, compact IR sources, H 2 regions, and shock fronts are described.
Davis David S.
Hofmann Ralf
Larson Harold P.
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