https://doi.org/10.1140/epjc/s10052-022-11037-x
Regular Article - Theoretical Physics
Thin accretion disks around a black hole in Einstein-Aether-scalar theory
1
College of Physics Science and Technology, Hebei University, 071002, Baoding, China
2
Hebei Key Lab of Optic-Electronic Information and Materials, Hebei University, 071002, Baoding, China
3
National-Local Joint Engineering Laboratory of New Energy Photoelectric Devices, Hebei University, 071002, Baoding, China
4
Key Laboratory of High-precision Computation and Application of Quantum Field Theory of Hebei Province, Hebei University, 071002, Baoding, China
Received:
9
August
2022
Accepted:
14
November
2022
Published online:
27
November
2022
We consider the accretion process in the thin disk around a supermassive black hole in Einstein-aether-scalar theory. We probe the effects of the model parameter on the physical properties of the disk. The results show that with increasing value of the parameter, the energy flux, the radiation temperature, the spectra cut-off frequency, the spectra luminosity, and the conversion efficiency of the disk decrease. The disk is hotter and more luminous than that in general relativity for negative parameter, while it is cooler and less luminous for positive parameter. We also find some values of the parameter allowed by the theory are excluded by the physical properties of the disk.
© The Author(s) 2022
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