Umananda Dev Goswami

activity

20232025

most citedQuasinormal modes, temperatures and greybody factors of black holes in a generalized Rastall gravity theory

18 citations · 26 across the 6 of their papers we have counts for

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3 papers · 1 filter

astro-ph.HE2025

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…

astro-ph.HE2024★ 2 cited

Analysing Ultra High Energy Cosmic Rays' Anisotropy in $f (R, T)$ 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 $f (R, T)$ gravity theo…

astro-ph.HE2024★ 4 cited

Magnetic Suppression of Cosmic Rays' Flux in $f (R)$ and $f (Q)$ 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…

Study of Flat Spectrum Radio Quasars and BL Lacertae Objects as Sources of Diffusive Ultra High-Energy Cosmic Rays

Analysing Ultra High Energy Cosmic Rays' Anisotropy in f(R,T) Gravity Theory

Magnetic Suppression of Cosmic Rays' Flux in f(R) and f(Q) Theories of Gravity

Analysing Ultra High Energy Cosmic Rays' Anisotropy in $f (R, T)$ Gravity Theory

Magnetic Suppression of Cosmic Rays' Flux in $f (R)$ and $f (Q)$ Theories of Gravity