Speaker
Soebur Razzaque
(University of Johannesburg)
Description
We fit ultrahigh-energy cosmic ray spectrum and composition data from the Pierre Auger Observatory using two populations of astrophysical sources. One population, accelerating dominantly protons, follows typical cosmological evolution similar to luminous astrophysical sources; while another, mostly nearby, population of astrophysical sources accelerate light-to-heavy nuclei. We compute expected cosmogenic neutrino flux in such a hybrid source population scenario and discuss possibilities to detect these neutrinos by upcoming detectors to shade lights on the sources of ultrahigh-energy cosmic rays.
Authors
Mr
Saikat Das
Soebur Razzaque
(University of Johannesburg)
Prof.
Nayantara Gupta
