4 papers
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…
Galaxy Evolution in the Local Universe: Group Richness Effects on Mergers and Non-Mergers
Pius Privatus, Umananda Dev Goswami
In this study, we use the luminous volume-limited samples obtained from the twelfth release of Sloan Digital Sky Survey data and mergers from Galaxy Zoo Project to investigate the…
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…
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…