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Thin accretion disk around a rotating Kerr-like black hole in Einstein-bumblebee gravity model

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arxiv 1910.13259 v2 pith:NSUML35U submitted 2019-10-26 gr-qc hep-th

Changqing Liu Chikun Ding , Jiliang Jing This is my paper · ORCID
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keywords accretionaroundblackeinstein-bumblebeegravityholekerr-likemodel
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We study the accretion process in the thin disk around a rotating Kerr-like black hole in Einstein-bumblebee gravity model where Lorentz symmetry is spontaneously broken once a vector field acquires a vacuum expectation value. In the present paper we obtain the energy flux, the emission spectrum and accretion efficiency from the accretion disks around the rotating Kerr-like black hole, and we compare them to the general Kerr case. These significant features in the mass accretion process may provide a possibility to test whether the Lorentz symmetry is spontaneously broken or not in the Einstein-bumblebee gravity model by future astronomical observations.

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Cited by 4 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Signatures of Lorentz violation in bright ring for Sgr A* images by radiation ineffective accretion flows

    astro-ph.HE 2026-08 conditional novelty 6.0 of 10

    For a rotating Lorentz-violating black hole, increasing the LV parameter shrinks and broadens Sgr A*'s image ring, and EHT data bound the parameter over a spin-dependent range.

  2. How does nonmetricity shape quantum emission from rotating bumblebee black holes?

    gr-qc 2026-08 conditional novelty 6.0 of 10

    In rotating metric-affine bumblebee black holes, nonmetricity makes the surface gravity and Hawking temperature depend on latitude and couples angular channels, so a global thermal spectrum does not exist.

  3. Boson Stars in Bumblebee Gravity and Their Gravitational Waveforms from Extreme-Mass-Ratio Inspirals

    gr-qc 2025-12 conditional novelty 5.0 of 10

    In bumblebee gravity, the Lorentz-violating parameter ℓ makes mini-boson stars more compact for positive ℓ and produces LISA-detectable, sustained EMRI waveforms for penetrating orbits.

  4. Spherical photon orbits around the Kerr-like black hole in Einstein-Bumblebee gravity

    gr-qc 2025-07 conditional novelty 5.0 of 10

    In Einstein-Bumblebee Kerr-like spacetimes, spherical photon orbits are governed by a sixth-order polynomial whose roots and critical inclination angle depend on the Lorentz-violation parameter.

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