Signatures of particle acceleration at SN1987aYoung SNRs may be bright sources of energetic photons and neutrinos generated by the collisions of particles accelerated within the remnant. Due to the large opacity of the shell at these early times, a photon signal may be suppressed; at later times, due to adiabatic losses of the magnetically-trapped particles in the expanding envelope, both neutron and neutrino signals will begin to decrease. There is therefore a window during which the secondary photon signal will be at its maximum. It is presently noted that if the observed decline of the optical light curve of SN1987a is due to Ni-56, Co-56 decay, this may place upper limits on such other sources of light as a central pulsar.
Document ID
19890041528
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Gaisser, T. K. (Delaware Univ. Newark, DE, United States)
Stanev, Todor (Delaware, University Newark, United States)
Harding, Alice (NASA Goddard Space Flight Center Greenbelt, MD, United States)