The weak interaction and gravitational collapse

Abstract

view Abstract Citations (58) References (24) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS The weak interaction and gravitational collapse. Schramm, D. N. ; Arnett, W. D. Abstract Recent developments in weak-interaction physics as well as a more careful examination of previously known phenomena should yield a much clearer picture of the gravitational collapse of an evolved stellar core than has previously been possible. It is shown that the dominant neutrino-emitting process throughout much of the collapse is ordinary electron capture. The effects of neutral currents and the coherent scattering of neutrinos is discussed. A modified neutrino transport supernova model, whereby momentum transfer from neutrino scattering blows off the outer part of a star while leaving a dense remnant, may be quite resonable. The boundary between collapse and ejection is near a region with a density of about 2 by 10 to the 11th power g/cu cm. Possible implications for origin of the cosmic rays and the heavy elements in the interstellar medium are discussed. Publication: The Astrophysical Journal Pub Date: June 1975 DOI: 10.1086/153641 Bibcode: 1975ApJ...198..629S Keywords: Gravitational Collapse; Neutrinos; Stellar Evolution; Supernovae; Astronomical Models; Cosmic Rays; Electron Capture; Heavy Elements; Interstellar Matter; Momentum Transfer; Particle Interactions; Astrophysics full text sources ADS |