activity
20232026
most citedPhoton rings as tests for alternative spherically symmetric geometries with thin accretion disks

47 citations · 143 across the 12 of their papers we have counts for

collaborators

12 papers

gr-qc2026

Accretion dynamics of thin and thick disks in charged Kalb-Ramond black holes

Ednaldo L. B. Junior, José Tarciso S. S. Junior, Francisco S. N. Lobo +5

In this work, we investigate the accretion properties of an electrically charged, static, spherically symmetric black hole in Kalb-Ramond (KR) gravity, where a dimensionless parame…

gr-qc2026

Black bounce sourced by non-minimally coupled linear electrodynamics and a canonical scalar field through a thin shell at the throat

Ednaldo L. B. Junior, José Tarciso S. S. Junior, Francisco S. N. Lobo +5

We construct a novel class of black bounce solutions within General Relativity, sourced by a canonical scalar field non-minimally coupled to linear electrodynamics, establishing a…

gr-qc2026

Black bounce solutions in a realistic dark matter halo from M60*

Ednaldo L. B. Junior, José Tarciso S. S. Junior, Francisco S. N. Lobo +5

We formulate a Simpson-Visser black bounce solution embedded in a dark matter halo. The latter is modeled using an empirical density profile calibrated from observations of the ell…

gr-qc20261 cited

Regular Black Holes in General Relativity from Nonlinear Electrodynamics with de Sitter Cores

A. A. Araújo Filho, Ednaldo L. B. Junior, José Tarciso S. S. Junior +6

We present new regular black hole solutions in general relativity (GR) within a static, spherically symmetric framework governed by a variable equation of state, following the appr…

gr-qc2026

Black hole shadows in nonminimally coupled Weyl connection gravity

Cláudio Gomes, Margarida Lima, Francisco S. N. Lobo +1

We study black hole shadows in nonminimally coupled Weyl connection gravity, a metric-affine extension of general relativity in which spacetime is described by a metric and a Weyl…

gr-qc20251 cited

Black bounce solutions via nonminimal scalar-electrodynamic couplings

Daniela S. J. Cordeiro, Ednaldo L. B. Junior, José Tarciso S. S. Junior +5

Black-bounce (BB) solutions generalize the spacetimes of black holes, regular black holes, and wormholes, depending on the values of certain characteristic parameters. In this work…