High-energy cosmic rays and neutrinos from semirelativistic hypernovae
High-energy cosmic rays and neutrinos from semirelativistic hypernovae
The origin of the ultrahigh-energy (UHE) cosmic rays (CRs) from the second knee ($\ensuremath{\sim}6\ifmmode\times\else\texttimes\fi{}{10}^{17}\text{ }\text{ }\mathrm{eV}$) above in the CR spectrum is still unknown. Recently, there has been growing evidence that a peculiar type of supernovae, called hypernovae, are associated with subenergetic gamma-ray bursts, such as SN1998bw/GRB980425 and SN2003lw/GRB031203. Such …