A one-dimensional Chandrasekhar-mass delayed-detonation model for the broad-lined Type Ia supernova 2002bo

摘要: We present 1D non-local thermodynamic equilibrium time-dependent radiative transfer simulations of a Chandrasekhar-mass delayed-detonation model which synthesizes 0.51 M-circle dot Ni-56, and confront our results to the Type Ia supernova (SN Ia) 2002bo over first 100 d its evolution. Assuming only homologous expansion, this same reproduces bolometric multiband light curves, secondary near-infrared (NIR) maxima, optical NIR spectra. The chemical stratification qualitatively agrees with previous inferences by Stehle et al., but reveals significant quantitative differences for both iron-group intermediate-mass elements. show that +/- 0.1 (i.e. 20 per cent) variations in Ni-56 mass have modest impact on colour evolution model. One notable exception is U band, where larger abundance elements less opaque ejecta through ionization effects, more displaying higher near-ultraviolet flux level. In range, such affect timing maxima not their magnitude, agreement observational results. Moreover, variation I, J, K-s magnitudes than mag within similar 10 from maximum, confirming potential photometry SNe cosmology. Overall, mechanism single white dwarf progenitors seems well suited SN broad Si II 6355 angstrom line. Whatever multidimensional processes are at play during explosion leading these events, they must conspire produce an comparable spherically symmetric