Black hole shadow in symmergent gravity

İrfan Çimdiker; Durmuş Demir; Ali Övgün

doi:10.1016/j.dark.2021.100900

Black hole shadow in symmergent gravity

İrfan Çimdiker, Durmuş Demir, Ali Övgün

Research output: Contribution to journal › Article › peer-review

37 Scopus citations

Abstract

Symmergent gravity is the R+R² gravity theory which emerges in a way restoring gauge symmetries broken explicitly by the ultraviolet cutoff in effective field theories. To test symmergent gravity we construct novel black hole solutions in four dimensions, and study their shadow in the vacuum as well as plasma medium. Our detailed analyses show that the horizon radius, Hawking temperature, Bekenstein–Hawking entropy, shadow angular radius, and photon deflection angle are sensitive probes of the symmergent gravity and particle spectrum of the underlying quantum field theory.

Original language	English
Article number	100900
Journal	Physics of the Dark Universe
Volume	34
DOIs	https://doi.org/10.1016/j.dark.2021.100900
State	Published - Dec 2021
Externally published	Yes

Keywords

Black hole
Deflection angle
Emergent gravity
Exact solutions
Shadow

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10.1016/j.dark.2021.100900

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title = "Black hole shadow in symmergent gravity",

abstract = "Symmergent gravity is the R+R2 gravity theory which emerges in a way restoring gauge symmetries broken explicitly by the ultraviolet cutoff in effective field theories. To test symmergent gravity we construct novel black hole solutions in four dimensions, and study their shadow in the vacuum as well as plasma medium. Our detailed analyses show that the horizon radius, Hawking temperature, Bekenstein–Hawking entropy, shadow angular radius, and photon deflection angle are sensitive probes of the symmergent gravity and particle spectrum of the underlying quantum field theory.",

keywords = "Black hole, Deflection angle, Emergent gravity, Exact solutions, Shadow",

author = "İrfan {\c C}imdiker and Durmu{\c s} Demir and Ali {\"O}vg{\"u}n",

note = "Publisher Copyright: {\textcopyright} 2021 Elsevier B.V.",

year = "2021",

month = dec,

doi = "10.1016/j.dark.2021.100900",

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T1 - Black hole shadow in symmergent gravity

AU - Çimdiker, İrfan

AU - Demir, Durmuş

AU - Övgün, Ali

PY - 2021/12

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AB - Symmergent gravity is the R+R2 gravity theory which emerges in a way restoring gauge symmetries broken explicitly by the ultraviolet cutoff in effective field theories. To test symmergent gravity we construct novel black hole solutions in four dimensions, and study their shadow in the vacuum as well as plasma medium. Our detailed analyses show that the horizon radius, Hawking temperature, Bekenstein–Hawking entropy, shadow angular radius, and photon deflection angle are sensitive probes of the symmergent gravity and particle spectrum of the underlying quantum field theory.

KW - Black hole

KW - Deflection angle

KW - Emergent gravity

KW - Exact solutions

KW - Shadow

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DO - 10.1016/j.dark.2021.100900

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SN - 2212-6864

VL - 34

JO - Physics of the Dark Universe

JF - Physics of the Dark Universe

M1 - 100900

ER -

Black hole shadow in symmergent gravity

Abstract

Keywords

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