The origin of the Crab Nebula and the electron capture supernova in 8-10 M solar mass stars

Details The origin of the Crab Nebula and the electron capture supernova in 8-10 M solar mass stars The origin of the Crab Nebula and the electron capture supernova in 8-10 M solar mass stars

Jul 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981stin...8132097n&link_type=abstract

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Computer Science

Chemical Composition, Crab Nebula, Neutron Stars, Supernova Remnants, Supernovae, Celestial Bodies, Electron Capture, Giant Stars, M Stars, Nebulae

Scientific paper

The chemical composition of the Crab Nebula is compared with several presupernova models. The small carbon and oxygen abundances in the helium-rich nebula are consistent with only the presupernova model of the star whose main sequence mass was MMS approximately 8-9.5 M. More massive stars contain too much carbon in the helium layer and smaller mass stars do not leave neutron stars. The progenitor star of the Crab Nebula lost appreciable part of the hydrogen-rich envelope before the hydrogen-rich and helium layers were mixed by convection. Finally it exploded as the electron capture supernova; the O+Ne+Mg core collapsed to form a neutron star and only the extended helium-rich envelope was ejected by the weak shock wave.

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