Effect of null aether field on weak deflection angle of black holes

A. vgün, I. Sakalli, JOEL FRANCISCO SAAVEDRA ALVEAR

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

We study light rays in the static and spherically symmetric gravitational field of the null aether theory (NAT). To this end, we employ the Gauss-Bonnet theorem to compute the deflection angle formed by a NAT black hole in the weak limit approximation. Using the optical metrics of the NAT black hole, we first obtain the Gaussian curvature and then calculate the leading terms of the deflection angle. Our calculations indicate how gravitational lensing is affected by the NAT field. We also illustrate that the bending of light stems from global and topological effects.

Original languageEnglish
Article number125105
JournalChinese Physics C
Volume44
Issue number12
DOIs
StatePublished - 1 Dec 2020
Externally publishedYes

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