Аннотация:The spin light of neutrino (SLν) is a new recently introduced mechanism of electromagnetic
radiation emitted by a massive neutrino (with a nonzero magnetic moment) moving in external
media. Although this effect is very weak due to smallness of the neutrino magnetic moment, it
can be of interest for astrophysical environments involving compact relativistic objects because
its efficiency is higher, the higher the neutrino energy and background matter density. In this
note we summarize conditions for best SLν efficiency in astrophysical settings and conclude that
the most suitable astrophysical site for manifestation of this phenomenon is represented by short
Gamma-Ray Bursts (sGRBs) where generation of ultra-high energy neutrinos is anticipated and
the matter density can be of the order of the nuclear density. We also give an estimation of the
SLν efficiency in the sGRB environment.