Abstract
view Abstract Citations (67) References (28) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Emission-line spectra of condensations in the Crab Nebula. Davidson, K. Abstract Relative line intensities have been measured, with a rather good degree of reliability, at nine definite positions in the Crab Nebula. Although a proper analysis of these data will require detailed and specific photoionization calculations, some preliminary statements about elemental abundances are proposed here. An interesting detail is the possible appearance of a carbon recombination line in one spectrum; if confirmed, this would indicate that a large abundance of carbon is present at one place in the supernova remnant. Finally, it is suggested that certain other investigations of the Crab Nebula, although they have probably not yet been seriously attempted, deserve high priorities in modern observational astronomy. Publication: The Astrophysical Journal Pub Date: February 1979 DOI: 10.1086/156834 Bibcode: 1979ApJ...228..179D Keywords: Astronomical Spectroscopy; Crab Nebula; Emission Spectra; Interstellar Matter; Line Spectra; Supernova Remnants; Abundance; Astronomical Models; Carbon; H Lines; Helium; Oxygen; Astrophysics; Crab Nebula:Element Abundances; Crab Nebula:Line Intensities; Spectra:Supernova Remnants full text sources ADS |
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