Expectations for the Hard X-ray Continuum and Gamma-ray Line Fluxes from the Type Ia supernova SN 2014J in M82

摘要: The hard X-ray continuum and gamma-ray lines from a Type Ia supernova dominate its integrated photon emissions can provide unique diagnostics of the mass ejecta, 56Ni yield spatial distribution, kinetic energy expansion speed, mechanism explosion. Such signatures their time behavior "X-ray" bulk debris field in direct fashion, do not depend on ofttimes problematic elaborate UV, optical, near-infrared spectroscopy radiative transfer that have informed study these events for decades. However, to date no photons ever been detected With advent SN 2014J M82, at distance ~3.5 Mpc, this situation may soon change. Both NuSTAR INTEGRAL potential detect 2014J, and, if spectra light curves be measured, would usefully constrain various explosion models published during last ~30 yr. In support observational campaigns, we predictions gamma-line 15 gleaned literature. model set, containing as it does deflagration, delayed detonation, merger pulsational sub-Chandrasekhar helium detonation models, collectively spans wide range properties, hence signatures. We brief discussion (with examples), but importantly make spectral line results available electronically aid interpretation anticipated data.