We present an improved calculation of the cumulative gamma-ray spectrum of Type Ia supernovae during the history of the universe. We follow Clayton & Ward (1975) in using a few Friedmann models and two simple histories of the average galaxian nucleosynthesis rate, but we improve their calculation by modeling the gamma-ray scattering in detailed numerical models of SN Ia\u27s. The results confirm that near 1 MeV the SN Ia background may dominate, and that it is potentially observable, with high scientific importance. A very accurate measurement of the cosmic background spectrum between 0.1 and 1.0 MeV may reveal the turn-on time and the evolution of the rate of Type Ia supernova nucleosynthesis in the universe
The explosion mechanism associated with thermonuclear supernovae (SNIa) is still a matter of debate....
Gamma rays offer unique probes of supernovae as cosmic-ray accelerators and as nucleosynthesis sites...
Monte Carlo simulations of the expected gamma-ray signatures of galactic supernovae of all types are...
The observed cosmic gamma-ray background at ~ MeV has often been attributed to Type Ia supernovae (S...
10 págs.; 13 figs.There has been much debate about the origin of the diffuse γ-ray background in the...
There has been much debate about the origin of the diffuse γ-ray background in the MeV range. At low...
The $\gamma$-ray background from supernovae is calculated on the basis of the reconstructed efficien...
Context. Although the question of progenitor systems and detailed explosion mechanisms still remains...
The OrIgm of the diffuse extragalactic gamma-ray background (EGB) has been intensively studied but r...
The gamma-ray light curves and spectra are presented for a set of theoretical Type Ia supernova mode...
Received xxxx xx, xxxx / accepted xxxx xx, xxxx Context. Although the question of progenitor systems...
Diffusive shock acceleration operating at expanding supernova remnant shells is by far the most popu...
Ongoing searches for supernovae (SNe) at cosmological distances have recently started to provide a l...
The light curves of Type Ia supernovae (SNe Ia) are powered by gamma rays emitted by the decay of ra...
The light curves of Type Ia Supernovae (SN Ia) are powered by gamma-rays emitted by the decay of rad...
The explosion mechanism associated with thermonuclear supernovae (SNIa) is still a matter of debate....
Gamma rays offer unique probes of supernovae as cosmic-ray accelerators and as nucleosynthesis sites...
Monte Carlo simulations of the expected gamma-ray signatures of galactic supernovae of all types are...
The observed cosmic gamma-ray background at ~ MeV has often been attributed to Type Ia supernovae (S...
10 págs.; 13 figs.There has been much debate about the origin of the diffuse γ-ray background in the...
There has been much debate about the origin of the diffuse γ-ray background in the MeV range. At low...
The $\gamma$-ray background from supernovae is calculated on the basis of the reconstructed efficien...
Context. Although the question of progenitor systems and detailed explosion mechanisms still remains...
The OrIgm of the diffuse extragalactic gamma-ray background (EGB) has been intensively studied but r...
The gamma-ray light curves and spectra are presented for a set of theoretical Type Ia supernova mode...
Received xxxx xx, xxxx / accepted xxxx xx, xxxx Context. Although the question of progenitor systems...
Diffusive shock acceleration operating at expanding supernova remnant shells is by far the most popu...
Ongoing searches for supernovae (SNe) at cosmological distances have recently started to provide a l...
The light curves of Type Ia supernovae (SNe Ia) are powered by gamma rays emitted by the decay of ra...
The light curves of Type Ia Supernovae (SN Ia) are powered by gamma-rays emitted by the decay of rad...
The explosion mechanism associated with thermonuclear supernovae (SNIa) is still a matter of debate....
Gamma rays offer unique probes of supernovae as cosmic-ray accelerators and as nucleosynthesis sites...
Monte Carlo simulations of the expected gamma-ray signatures of galactic supernovae of all types are...