The Crab Nebula's progenitor

Details The Crab Nebula's progenitor The Crab Nebula's progenitor

Oct 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982natur.299..803n&link_type=abstract

Nature, vol. 299, Oct. 28, 1982, p. 803-805.

Computer Science

51

Crab Nebula, Helium, Nuclear Fusion, Stellar Evolution, Stellar Mass, Abundance, Carbon, Electron Capture

Scientific paper

The initial mass of the Crab Nebula's progenitor star is estimated by comparing the observed nebular chemical abundances with detailed evolutionary calculations for 2.4- and 2.6-solar-mass helium cores of stars with masses of 8 to 10 solar masses. The results indicate that the mass of the Crab's progenitor was between the upper limit of about 8 solar masses for carbon deflagration and the lower limit of about 9.5 solar masses set by the dredge-up of the helium layer before the development of the helium-burning convective region. A scenario is outlined for the evolution of the progenitor star. It is suggested that the Crab Nebula was probably the product of an electron-capture supernova.

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