In published papers H A Bethe and G E Brown worked out  the collapse of large stars and supernova explosions. They went on to  evolve binaries of compact stars, finding that in the standard  scenario the first formed neutron star always went into a black hole  in common envelope evolution. C J Lee joined them in the study of  black hole binaries and gamma ray bursts. They found the black holes  to be the fossils of the gamma ray bursts. From their properties they  could reconstruct features of the burst and of the accompanying  hypernova explosions.    
This invaluable book contains 23 papers on astrophysics, chiefly on  compact objects, written over 23 years. The papers are accompanied by  illuminating commentary. In addition there is an appendix on kaon  condensation which the editors believe to be relevant to the equation  of state in neutron stars, and to explain why black holes are formed  at relatively low masses.