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Gravitational synchrotron radiation and Penrose process in STVG theory

Bobur TurimovUlugh Beg Astronomical Institute, Astronomy St. 33, Tashkent 100052, UzbekistanHusan AlibekovNational University of Uzbekistan, Tashkent 100174, UzbekistanPulat TadjimuratovUlugh Beg Astronomical Institute, Astronomy St. 33, Tashkent 100052, UzbekistanAhmadjon AbdujabbarovUlugh Beg Astronomical Institute, Astronomy St. 33, Tashkent 100052, Uzbekistan

Physics Letters Bjournal2023en

Ochiq kirishOlmos

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Annotatsiya

The paper has explored analogue of gravitational synchrotron massive particle and Penrose process in MOdified Gravity (MOG) known as Scalar-Tensor-Vector-Gravity (STVG). Investigation of the gravitational field around Kerr-MOG black hole showed that it has strong gravitational field with large horizon and can rotate faster than Kerr black hole due to the effect of STVG. We have studied influence of STVG in circular motion of massive particle around Kerr-MOG black hole and discussed the Innermost Stable Circular Orbit (ISCO) of massive test particle. It is shown that STVG plays a crucial role in energy extraction from a rotating black hole, with an energy efficiency of more than 100% according to the Penrose process. Furthermore, we have explored the gravitational synchrotron radiation analogue produced by a massive particle orbiting around a Kerr-MOG black hole. It has been shown that the intensity of gravitational radiation from binary systems of stellar black holes (SBH) and supermassive black holes (SMBH).

Hali tarjima qilinmagan

Mavzular

Astrophysical Phenomena and Observations Pulsars and Gravitational Waves Research Astrophysics and Cosmic Phenomena

Identifikatorlar

DOI: 10.1016/j.physletb.2023.138040

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