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Studies of bipolar nebulae. VI - Optical spectrophotometric mapping of GL 2688 /the Cygnus EGG Nebula/Optical scanner spectra are presented for ten positions in the lobes of GL 2688. Color gradients exist across the nebulae, probably due to systematic variations in the sizes of typical scattering grains. Molecular emissions C2, C3, and SiC2 are found, similar to the spectra of comets. Resonance fluorescence seems to be indicated.
Document ID
19810033568
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
doi:10.1086/130739
Authors
Cohen, M. (NASA Ames Research Center Moffett Field, Calif., United States)
Kuhi, L. V. (California, University Berkeley, Calif., United States)
Date Acquired
August 11, 2013
Publication Date
November 1, 1980
Publication Information
Publication: Astronomical Society of the Pacific
Subject Category
Astronomy
Accession Number
81A17972
Funding Number(s)
CONTRACT_GRANT: NSF GP-29684
CONTRACT_GRANT: NSF AST-79-02866
Distribution Limits
Public
Copyright
Other

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