Shadow of novel rotating black hole in GR coupled to nonlinear electrodynamics and constraints from EHT results

Raza, Muhammad Ali; Rayimbaev, Javlon; Sarikulov, Furkat; Zubair, M.; Ahmedov, Bobomurat; Stuchlík, Zdeněk

doi:10.1016/j.dark.2024.101488

Physics of the Dark Universe

2024

DOI: 10.1016/j.dark.2024.101488

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Shadow of novel rotating black hole in GR coupled to nonlinear electrodynamics and constraints from EHT results

Muhammad Ali Raza,

Javlon Rayimbaev,

Furkat Sarikulov

et al.

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Cited by 5 publications

References 85 publications

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Apparent and emergent dark matter around a Schwarzschild black hole

Pantig

2024

Physics of the Dark Universe

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Apparent and emergent dark matter around a Schwarzschild black hole

Pantig

2024

Physics of the Dark Universe

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Accretion disks properties around regular black hole solutions obtained from non-linear electrodynamics

Kurmanov,

Boshkayev,

Konysbayev

et al. 2024

Physics of the Dark Universe

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Event Horizon Telescope observations exclude compact objects in baseline mimetic gravity

Khodadi,

Vagnozzi,

Firouzjaee

2024

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Mimetic gravity has gained significant appeal in cosmological contexts, but static spherically symmetric space-times within the baseline theory are highly non-trivial: the two natural solutions are a naked singularity and a black hole space-time obtained through an appropriate gluing procedure. We study the shadow properties of these two objects, finding both to be pathological. In particular, the naked singularity does not cast a shadow, whereas the black hole casts a shadow which is too small. We argue that the Event Horizon Telescope images of M87$$^{\star }$$ and Sgr A$$^{\star }$$ rule out the baseline version of mimetic gravity, preventing the theory from successfully accounting for the dark sector on cosmological scales. Our results highlight an interesting complementarity between black hole imaging observations and modified gravity theories of cosmological interest.

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Shadow of novel rotating black hole in GR coupled to nonlinear electrodynamics and constraints from EHT results

Cited by 5 publications

References 85 publications

Apparent and emergent dark matter around a Schwarzschild black hole

Apparent and emergent dark matter around a Schwarzschild black hole

Accretion disks properties around regular black hole solutions obtained from non-linear electrodynamics

Event Horizon Telescope observations exclude compact objects in baseline mimetic gravity

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