TY - JOUR

T1 - Probing a non-linear electrodynamics black hole with thin accretion disk, shadow, and deflection angle with M87* and Sgr A* from EHT

AU - Uniyal, Akhil

AU - Pantig, Reggie C.

AU - Övgün, Ali

N1 - Publisher Copyright:
© 2023 Elsevier B.V.

PY - 2023/5

Y1 - 2023/5

N2 - Non-linear interaction between the electromagnetic fields (EMF) occurs when vacuum polarization in quantum electrodynamics (QED) happens. The field of non-linear electrodynamics, which may result from this interaction, could have important effects on black hole physics. This paper considers the asymptotically flat black hole solution in Einstein-nonlinear electrodynamics (NLE) fields. We study the effect of the NLE parameters on the black hole deflection angle using the Gauss–Bonnet theorem in weak field limits, shadow cast using the null geodesics method, and thin accretion disk using the Novikov–Thorne model. In particular, we studied the time-averaged energy flux, the disk temperature, the differential luminosity, the different emission profiles, and infalling spherical accretion. Then we show how the physical quantities depend on β and C parameters of NLE and provide some constraints on the NLE parameters using the observations of M87* and Sgr A* from EHT.

AB - Non-linear interaction between the electromagnetic fields (EMF) occurs when vacuum polarization in quantum electrodynamics (QED) happens. The field of non-linear electrodynamics, which may result from this interaction, could have important effects on black hole physics. This paper considers the asymptotically flat black hole solution in Einstein-nonlinear electrodynamics (NLE) fields. We study the effect of the NLE parameters on the black hole deflection angle using the Gauss–Bonnet theorem in weak field limits, shadow cast using the null geodesics method, and thin accretion disk using the Novikov–Thorne model. In particular, we studied the time-averaged energy flux, the disk temperature, the differential luminosity, the different emission profiles, and infalling spherical accretion. Then we show how the physical quantities depend on β and C parameters of NLE and provide some constraints on the NLE parameters using the observations of M87* and Sgr A* from EHT.

KW - Black hole

KW - Event horizon telescope

KW - Gauss–Bonnet theorem

KW - Non-linear electrodynamics

KW - Shadow cast

KW - Thin accretion disk

KW - Weak deflection angle

UR - http://www.scopus.com/inward/record.url?scp=85147288438&partnerID=8YFLogxK

U2 - 10.1016/j.dark.2023.101178

DO - 10.1016/j.dark.2023.101178

M3 - Article

AN - SCOPUS:85147288438

SN - 2212-6864

VL - 40

JO - Physics of the Dark Universe

JF - Physics of the Dark Universe

M1 - 101178

ER -