Molecular hydrogen emission from W51

Technical Report · Tue Sep 01 04:00:00 EDT 1981

OSTI ID:5577187

Beckwith, S; Zuckerman, B

The detection of emission from the v 1 approaches 0 S(1) quadrupole transition of H2 toward the cluster of intense infrared and H2O maser sources in W51 (north) is reported. The apparent luminosity of this line in W51 (north) is only about 4% of the luminosity of the same line toward the Kleinmann-Low infrared cluster in Orion however, additional line-of-sight extinction and spatial extent of the source may account for the lower apparent power in W51. Similarity in the infrared and H2O properties of these clusters is addressed. The implications of the H2 emission for mass loss in the W51 region is discussed and some proposed models of radiation-driven mass outflow from pre-main sequence stars are briefly considered.

• Research Organization: Cornell Univ., Ithaca, NY (USA)
• OSTI ID: 5577187
• Report Number(s): NASA-CR-164608
• Country of Publication: United States
• Language: English

Related Subjects

640105* -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AMPLIFIERS
COSMIC RADIO SOURCES
ELECTRONIC EQUIPMENT
ELEMENTS
EQUIPMENT
H1 REGIONS
HYDROGEN
INFRARED SPECTRA
MAIN SEQUENCE STARS
MASERS
MICROWAVE AMPLIFIERS
MICROWAVE EQUIPMENT
NONMETALS
SPECTRA
STAR CLUSTERS
STARS