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- W2040226796 abstract "view Abstract Citations (12) References (17) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Emission Features in the Spectrum of NGC 7027 near 3.3 Microns at Very High Resolution Lowe, R. P. ; Moorhead, J. M. ; Wehlau, W. H. ; Maillard, J. -P. Abstract A very high resolution spectrum is presented of the planetary nebula NGC 7027 over a 200/cm interval centered at 2950/cm, and the features found are described: (1) nebular continuum, (2) atomic recombination lines of H and He II, and (3) three broader emission features of uncertain origin. For the latter the first evidence is presented that the 3.46 micron feature and possibly the 3.40 micron feature are resolvable into a sequence of narrower features. The interpretation of the broader features is discussed in terms of the hypothesis of identification with emission by polycyclic aromatic hydrocarbons. Publication: The Astrophysical Journal Pub Date: February 1991 DOI: 10.1086/169683 Bibcode: 1991ApJ...368..195L Keywords: Astronomical Spectroscopy; Emission Spectra; Infrared Spectra; Planetary Nebulae; Atomic Recombination; High Resolution; Hydrocarbons; Stellar Spectra; Astrophysics; NEBULAE: INDIVIDUAL NGC NUMBER: NGC 7027; NEBULAE: PLANETARY; INFRARED: SPECTRA; INTERSTELLAR: GRAINS full text sources ADS | data products SIMBAD (1)" @default.
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- W2040226796 date "1991-02-01" @default.
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- W2040226796 title "Emission features in the spectrum of NGC 7027 near 3.3 microns at very high resolution" @default.
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