Other
Scientific paper
Oct 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986pasp...98.1044h&link_type=abstract
Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 98, Oct. 1986, p. 1044-1048.
Other
12
Abundance, Crab Nebula, Nuclear Fusion, Stellar Evolution, Supernova Remnants, Photoionization, Stellar Mass
Scientific paper
Current photoionization models of the Crab nebula filaments are discussed and the inferred elemental abundances compared with nuclear theory and predictions from a stellar evolution model. In contrast to the conventional picture, which predicts a large overabundance of N in the He-rich filaments, results of one filament model indicate that the gas is actually He and Ne rich, suggesting that much of the N-14 was transformed into Ne-22 during helium shell burning just prior to the explosion. This scenario is consistent with a progenitor mass of slightly greater than 9.5 solar masses. In addition, it is pointed out that the observation of strong forbidden N II 7378 A in the Crab filaments is unlikely to be related to an overabundance of Ni, since similar line strengths have been observed in other diverse objects.
No associations
LandOfFree
Elemental abundances in the Crab nebula does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Elemental abundances in the Crab nebula, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Elemental abundances in the Crab nebula will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1740319