Spectrophotometry of emission nebulae in the 5000-6000 A spectral region

Details Spectrophotometry of emission nebulae in the 5000-6000 A spectral region Spectrophotometry of emission nebulae in the 5000-6000 A spectral region

May 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984pasp...96..349p&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 96, May 1984, p. 349-353. Research supported by the Nat

Astronomy and Astrophysics

Astronomy

12

Emission Spectra, Hydrogen Clouds, Interstellar Matter, Molecular Clouds, Planetary Nebulae, Triatomic Molecules, Absorption Spectra, H Lines, Spectrophotometry

Scientific paper

High-sensitivity spectrophotometry has been obtained over the spectral range 5000-6000 A for the planetary nebulae NGC 6210, NGC 7027, and IC 351 and for the bipolar nebula AFGL 2688. The observations of NGC 7027 show an emission feature at 5624 A which is tentatively attributed to the molecule H3. For the first time diffuse interstellar bands (at 5780 A and 5796 A) have been found in absorption against the continuum of NGC 7027; their existence may place interesting constraints on the origin of the diffuse interstellar bands.

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