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Detection of molecular hydrogen emission from five planetary nebulaeThe v = 1 to 0 S(1) line of molecular hydrogen has been detected in five planetary nebulae. They are the Ring Nebula (M57, NGC 6720), BD+30 deg 3639, Hb 12, CRL 618, and CRL 2688. A region in the northeast of the Ring Nebula has been mapped in both the v = 1 to 0 S(1) molecular hydrogen line and the Brackett gamma line of atomic hydrogen. The H2 emission is not spatially correlated with the B-gamma, but is correlated with the (OI) emission as determined from interference filter photographs.
Document ID
19780037779
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
doi:10.1086/182601
Authors
Beckwith, S. (California Inst. of Tech. Pasadena, CA, United States)
Gatley, I. (California Institute of Technology Pasadena, Calif., United States)
Persson, S. E. (Hale Observatories Pasadena, Calif., United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1978
Publication Information
Publication: Astrophysical Journal
Subject Category
Astronomy
Accession Number
78A21688
Funding Number(s)
CONTRACT_GRANT: NGL-05-002-207
CONTRACT_GRANT: NSF AST-74-18555-A2
Distribution Limits
Public
Copyright
Other

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