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20142026
most citedQuasinormal modes, thermodynamics and shadow of black holes in Hu-Sawicki f(R) gravity theory

28 citations · 78 across the 29 of their papers we have counts for

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Showing 2025Show all

7 papers · 1 filter

gr-qc2025★ 2 cited

Black Hole Quasi-Periodic Oscillations in the Presence of Gauss-Bonnet Trace Anomaly

Rupam Jyoti Borah, Umananda Dev Goswami

We investigate the effects of the Gauss-Bonnet (GB) gravitational trace anomaly on the circular motion of test particles around black holes (BHs) and its implications for quasi-per…

astro-ph.GA2025

Mapping Nearby Galaxies with Apache Point Observatory: Group and field galaxies' morphologies in the colour-magnitude plane

Pius Privatus, Umananda Dev Goswami

This study involves the use of integral field spectroscopy (IFS) data from Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) to investigate whether the morphology influen…

gr-qc2025★ 3 cited

Quasinormal Modes and Shadows of Black Holes in Infinite Derivative Theory of Gravity

Rupam Jyoti Borah, Umananda Dev Goswami

In this work, we study the quasinormal modes (QNMs) and shadow of a Schwarzschild black hole (BH) with higher-order metric corrections, in the framework of the Infinite Derivative…

astro-ph.HE2025

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)…

gr-qc2025★ 4 cited

Strong Lensing Effect and Quasinormal Modes of Oscillations of Black Holes in Gravity Theory

Gayatri Mohan, Ronit Karmakar, Rupam Jyoti Borah +1

In this work, we analyze the strong lensing phenomenon and quasinormal modes (QNMs) in the case of black holes (BHs) surrounded by fluids within the framework of gravity,…

astro-ph.GA2025

Analysis of the Effect of Bars on Environmental Dependence of Disc Galaxies with MaNGA Survey Data

Pius Privatus, Umananda Dev Goswami

Bars are fundamental structures in disc galaxies, although their role in galaxy evolution is still not fully known. This study investigates the effect of the presence of bars on th…

gr-qc2025

Phase space analysis of Bianchi III Universe with gravity theory

Pranjal Sarmah, Umananda Dev Goswami

The Bianchi type III (BIII) metric is a useful geometry to study cosmic anisotropies. It includes an extra exponential term multiplied by a directional scale factor and recasts the…