The Hubble constant, supernova light curves and spectra, and radiation transport

摘要: As luminous events that can be physically modeled, supernovae provide an attractive route to the value of Hubble constant. The modeling involves radiation transport through matter undergoing homologous expansion with velocity gradient on order 10−6 s−1. For type Ia, which are thermonuclear disruptions mass accreting or coalescing carbon–oxygen white dwarfs, one wants able calculate light curve (luminosity in some optical passband versus time), is powered by radioactivity decay chain 56Ni→56Co→56Fe. all kinds supernovae, including those types II, Ib, and Ic, result from gravitational collapse cores massive stars, goal accurately emergent ultraviolet–optical–infrared spectra, as a function time. Local-thermodynamic-equilibrium (LTE) light-curve calculations for Ia Hoflich co-workers, our spectrum based fully relativistic non-LTE radiative transfer code, are...