18 citations · 26 across the 6 of their papers we have counts for
6 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…
Galactic dynamics in the presence of scalaron: A perspective from gravity
Gayatri Mohan, Umananda Dev Goswami
We consider modified gravity theory incorporating the chameleon mechanism to address galactic dynamics. By employing the metric formalism and utilizing a conformal transform…
Quasinormal modes, temperatures and greybody factors of black holes in a generalized Rastall gravity theory
Ronit Karmakar, Umananda Dev Goswami
We introduce a modification in the energy-momentum conservation violating Rastall's theory of gravity and obtain a Reissner-Nordström-type black hole solution in spacetime surround…