The Physics Society of Iran Iranian Journal of Physics Research 1682-6957 20 4 2021 02 19 Study of spinning particles around rotating black holes‎ Study of spinning particles around rotating black holes‎ 693 698 1660 10.47176/ijpr.20.4.37971 FA J Khodagholizadeh Department of Physics, Farhangian University, Tehran, Iran ‎ A Vahedi Department of Physics, Kharazmi university, Tehran, Iran‎ ‎ Journal Article 2019 06 10 The orbital velocity profile around the Kerr black holes has a non-monotonic radial behavior in the Locally ‎Nonrotating Frames (LNRF)‎. ‎Using Mathisson- Papapetrou- Dixon equation for a massive spinning particle‎, ‎again this ‎maximum-minimum feature has been shown by considering the linear spin approximation‎. ‎Also the spin of black holes ‎and absolute value of particle's spin have an important rule ‏ ‏in Aschenbach effect‎‎.   The orbital velocity profile around the Kerr black holes has a non-monotonic radial behavior in the Locally ‎Nonrotating Frames (LNRF)‎. ‎Using Mathisson- Papapetrou- Dixon equation for a massive spinning particle‎, ‎again this ‎maximum-minimum feature has been shown by considering the linear spin approximation‎. ‎Also the spin of black holes ‎and absolute value of particle's spin have an important rule ‏ ‏in Aschenbach effect‎‎.   https://ijpr.iut.ac.ir/article_1660_9a4400501febb2a95e79248486a5f6d3.pdf