Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...336..207t&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 336, Jan. 1, 1989, p. 207-211. Research supported by the Japan Society for
Astronomy and Astrophysics
Astrophysics
65
Hydrogen Clouds, Infrared Spectroscopy, Interstellar Chemistry, Interstellar Gas, Molecular Excitation, Fluorescence, Molecular Collisions, Photodissociation, Thermal Emission
Scientific paper
High-resolution spectroscopic observations of vibrationally excited H2 are reported for nine Galactic sources. Data were obtained using a cooled circular variable filter wheel in tandem with an ambient-temperature Fabry-Perot interferometer on the UKIRT in August 1987. It is found that collisional and fluorescent excitation processes are both evident in most of the sources, although one may be dominant. The ortho/para ratio is determined for sources with fluorescent excitation and found to range from 1.0 to 1.8, in contrast with the high-temperature equilibrium value of 3.
Brand Peter W. J. L.
Gatley Ian
Hasegawa Tetsuo
Hayashi Saeko Suzuki
Tanaka Masuo
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