Explosions of O-Ne-Mg cores, the Crab supernova, and subluminous type II-P supernovae F. S. Kitaura, H.-Th. Janka and W. Hillebrandt A&A, 450 1 (2006) 345-350 Published online: 03 April 2006 DOI: 10.1051/0004-6361:20054703