Hypernovae and light dark matter as possible Galactic positron sources

@inproceedings{Schanne2004HypernovaeAL,
  title={Hypernovae and light dark matter as possible Galactic positron sources},
  author={St{\'e}phane Schanne and Michel Casśe and Jacques Paul and Bertrand Cordier},
  year={2004}
}
The electron-positron annihilation source in the Galactic center region has recently been observed with INTEGRAL/SPI, which shows that this 511 keV source is strong and its extension is consistent with the Galactic bulge geometry. The positron production rate, estimated to more than 10 43 per second, is very high and raises a challenging question about the nature of the Galactic positron source. Commonly considered astrophysical positron injectors, namely type Ia supernovae are rare events and… CONTINUE READING