报告题目:Energetic and Observational Properties of Black Holes and Magnetized Neutron Stars

报告人：Bobomurat Ahmedov

报告时间：上午10:00-11:00

报告地点：理学楼A110

Bobomurat Ahmedov   教授学术报告
报告题目 Title：
Energetic and Observational Properties of Black Holes and Magnetized Neutron Stars
报告时间(Time)： 2019年9月20日上午10:00-11:00 (周五)
报告地点 (Room)： 理学楼A110
报告摘要 (Abstract): Various energetic and observational properties of rotating black holes (BH) and magnetized neutron stars (NS) will be discussed. There are two processes that extract energy from a rotating black hole sitting in magnetic field environment. One is known as magnetic Penrose process (MPP) and the other as Blandford-Znajek mechanism (BZ). For both the processes, magnetic field works as a catalytic agent and extracted energy is rotational energy of black hole. However MPP could have super efficiency exceeding 100%.
The possibilities of probing various black holes nature through the study of their observational properties will be discussed. The scalar, electromagnetic and gravitational perturbations of regular black holes will be also presented.
A qualitative model for the explanation of the phenomenology of intermittent pulsars in terms of stellar oscillations that are periodically excited by star glitches has been proposed. The conditions for radio emission in rotating and oscillating magnetars, by focusing on the main physical processes determining when the magnetars may be radio-loud or radio-quiet will be discussed. I will also discuss the subpulse drift phenomena adopting the space-charge limited flow (SCLF) model and comparing the plasma drift velocity in the inner region of pulsar magnetospheres with the observed velocity of drifting subpulses.
报告人简介 (Bio)：
Bobomurat Ahmedov,
Full professor of astronomy & theoretical physics from the supreme attestation committee of the republic of uzbekistan
Research position: head, theoretical astrophysics department in ai, tashkent
Ulugh Beg Astronomical Institute (AI), Uzbekistan Academy of Sciences
Awards received
"The Researcher of the Year 2018" in Uzbekistan, awarded by Scopus database on 23/11/2018
“Science Leader” Web of Science award – 2017, selection by the Clarivate Analytics Web of Science as the highly cited author in the country
(Uzbekistan) with 77 papers published in the refereed journals during the last 10 years.
Uzbekistan State Order “Glory of Labor”, 2012 (Mehnat Shuhrati ordeni/Orden Trudovoj Slavy).
Award of The World Academy of Sciences for Young Scientists in Physics in Year 2001.

Award of Uzbekistan Academy of Sciences for Young Scientists in Physics in Year 1996. International Science Foundation (ISF) Award, 1994.

欢迎感兴趣的老师和同学参加。