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- Deakin UniversityAU7 papers
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8 papers · 1 filter
Study of Flat Spectrum Radio Quasars and BL Lacertae Objects as Sources of Diffusive Ultra High-Energy Cosmic Rays
Swaraj Pratim Sarmah, Umananda Dev Goswami
We examine whether Flat Spectrum Radio Quasars (FSRQs) and BL Lacertae objects (BL Lacs) can act as plausible astrophysical sources of diffuse ultra-high-energy cosmic rays (UHECRs…
Propagation of UHE cosmic rays in the light of f(R) gravity power-law model
Swaraj Pratim Sarmah
While the origins of ultra-high energy (UHE) cosmic rays (CRs) remain shrouded in uncertainty, several important milestones have been reached in recent years in the experimental st…
Ultra-high energy cosmic rays with UFA-15 source model in Bumblebee gravity theory
Swaraj Pratim Sarmah. Pranjal Sarmah, Umananda Dev Goswami
We explore the effects of Bumblebee gravity on the propagation of ultra-high energy cosmic rays (UHECRs) using astrophysical sources modelled in the Unger-Farrar-Anchordoqui (UFA)…
Analysing Ultra High Energy Cosmic Rays' Anisotropy in Gravity Theory
Swaraj Pratim Sarmah, Umananda Dev Goswami
In this study, we investigated the anisotropy of diffusive Ultra-High Energy Cosmic Rays (UHECRs) by employing three cosmological models: two models from the gravity theo…
Modelling Cosmic Rays Flux with Pierre Auger and Telescope Array Data in and Theories of Gravity
Swaraj Pratim Sarmah, Umananda Dev Goswami
We investigate the effects of the magnetic field and the redshift on the propagation of galactic and extragalactic cosmic rays (CRs) in a modified theory of gravity (MTG) and an al…
Magnetic Suppression of Cosmic Rays' Flux in and Theories of Gravity
Swaraj Pratim Sarmah, Umananda Dev Goswami
We investigate the effects of magnetic diffusion on the spectrum of ultra-high energy cosmic rays (UHECRs) from a cosmological perspective. To this end, we consider two modified th…