Annu. Rev. Astron. Astrophys. 1998. 36: 17-55
Copyright © 1998 by . All rights reserved

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4.5. Summary

SNe Ia appear to be carbon ignitors. If normal SNe Ia are Chandrasekhar-mass explosions in single-degenerate progenitor systems, their light curves and spectra indicate that they eject MNi appeq 0.6 Modot. If they are mergers of double degenerates, they should be at least mildly super-Chandrasekhar and then should eject somewhat more 56Ni to achieve the temperature needed to account for their spectra.