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20112026
most citedThe CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics

299 citations · 966 across the 66 of their papers we have counts for

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gr-qc2026

Testing Charged Black Holes Embedded in Anisotropic Matter and Surrounded by Plasma through Gravitational Lensing: Bounds from the Sloan Lens ACS Survey

Ritesh Pandey, Shubham Kala, Amare Abebe +2

We investigate weak gravitational lensing by a charged black hole surrounded by anisotropic matter, described by the two-component Kiselev metric, and immersed in a homogeneous pla…

gr-qc2026

Constraint closure and gravitational-wave content of shear-free cosmologies in metric f(R) gravity

Mudhahir Al Ajmi, Amare Abebe

We derive the consistency conditions governing the propagating content of linear shear-free perturbations of Friedmann-Lema\^ıtre-Robertson-Walker cosmologies in metric grav…

gr-qc2026

Rotating traversable wormholes and particle dynamics in gravity

G. G. L. Nashed, Waleed El Hanafy, Amare Abebe +2

Traversable wormholes are among the most interesting solutions of gravitational theories, but within General Relativity they generally require exotic matter violating the null ener…

gr-qc2026

Light Deflection and Greybody Bound Around a BTZ-ModMax Black Hole in Plasma Medium

Ritesh Pandey, Shubham Kala, Amare Abebe +2

We study the deflection of light in a homogeneous plasma medium around a BTZ-ModMax black hole, focusing on the effects of the ModMax nonlinear electrodynamics parameter and the co…

gr-qc2026

Cosmological Tensions as Consistency Conditions for f(Q) Gravity

Amare Abebe

Cosmology has entered a precision era in which discrepancies between independent datasets, most notably the and tensions, have become robust and statistically significa…

gr-qc2026

Gravitational lensing around a Kerr-Sen black hole in plasma background

Saswati Roy, Shubham Kala, Sayanika Modak +2

We investigate the gravitational lensing of massless particles around a Kerr-Sen black hole immersed in a magnetized, cold, pressureless plasma medium. Both homogeneous and inhomog…