Dynamics of charged particles and magnetic dipoles around magnetized quasi-Schwarzschild black holes

نویسندگان

چکیده

In the present paper, we have investigated motion of charged particles together with magnetic dipoles to determine how well spacetime deviation parameter $\epsilon$ and external uniform field can mimic spin a rotating Kerr black hole. Investigation particle has shown that in absence fields rotation up $a/M \approx0.5$. The combination do even better job mimicking $a/M\simeq0.93$, which corresponds rapidly case. Study dynamics around quasi-Schwarzschild holes there are degeneracy values ISCO radius test at $\epsilon_{cr}>\epsilon\geq 0.35$ may lead two different innermost stable circular orbit (ISCO) radius. When is range $\epsilon \in (-1,\ 1)$, it hole (0.0537, \ 0.3952)$ for coupling $\beta [-0.25,\ 0.25]$ corotating orbits.

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ژورنال

عنوان ژورنال: European Physical Journal C

سال: 2021

ISSN: ['1434-6044', '1434-6052']

DOI: https://doi.org/10.1140/epjc/s10052-021-09074-z