127 citations · 717 across the 18 of their papers we have counts for
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PeV-EeV neutrinos from gamma-ray blazars due to ultrahigh-energy cosmic-ray propagation
Saikat Das, Nayantara Gupta, Soebur Razzaque
Blazars are potential candidates of cosmic-ray acceleration up to ultrahigh energies ( eV). For an efficient cosmic-ray injection from blazars, collisions wit…
Modeling the spectrum and composition of ultrahigh-energy cosmic rays with two populations of extragalactic sources
Saikat Das, Soebur Razzaque, Nayantara Gupta
We fit the ultrahigh-energy cosmic-ray (UHECR, EeV) spectrum and composition data from the Pierre Auger Observatory at energies eV, i.e., beyo…
Ultrahigh-energy cosmic ray interactions as the origin of very high energy rays from BL Lacs
Saikat Das, Nayantara Gupta, Soebur Razzaque
We explain the observed multiwavelength photon spectrum of a number of BL Lac objects detected at very high energy (VHE, GeV), using a lepto-hadronic emission model.…
Ultrahigh energy cosmic rays and neutrinos from light nuclei composition
Saikat Das, Soebur Razzaque, Nayantara Gupta
The baryonic mass composition of ultrahigh energy ( eV) cosmic rays (UHECRs) at injection accompanied by their interactions on universal photon backgrounds during…