主持人：刘四明 教授
时间：2024年1月16日（周二）上午10：00
地点：犀浦校区二教2539会议室
ZOOM：93597239645
会议密码：123456
题目：Probing Galactic and Extragalactic Cosmic Ray Factories with high energy gamma -rays
主讲人：Felix Aharonian 国际著名粒子天体物理学家
EDUCATION
1979 PhD Moscow Engineering-Physics Institute, Department: Nuclear and Particle Physics, USSR
1975 Master Moscow Engineering-Physics Institute, Department: Nuclear and Particle Physics, USSR
CURRENT POSITION
since 2006 Professor, Dublin Institute for Advanced Studies (DIAS), Ireland
Since 2006 External Member of the Max-Planck Institute for Nuclear Physics (MPIK), Germany
since 2023. Chief Scientist, Physics Department, Yerevan State University, Armenia
PREVIOUS POSITIONS
1979 – 1991 Junior/Senior/Leading Researcher, Yerevan Physics Institute, Armenia
1993 – 2020 Leader of the High Energy Astrophysics Group, MPIK, Heidelberg, Germany
AWARDS
1975 Best Master Thesis in Physics (Ministry of Education of USSR)
2005 Prize of the President of Armenia;
2006. EU Descartes prize (as a member of the HESS collaboration)
2010 Bruno Rossi Prize (shared with Werner Hofmann and Heinz Völk) for the HESS project
2014 Victor Ambartsumian International Prize (shared with I. Karachentsev and B.Tully)
PUBLICATIONS
> 650 papers in peer reviewed international journals, > 44,000 citations; h-index: 113 (Nov 2023)
Books:
F.A. Aharonian "Very high energy cosmic gamma radiation : a crucial window on the extreme
Universe", River Edge, NJ: World Scientific Publishing (512pp), 2004
F.A. Aharonian, C.Dermer, L. Bergstrom, “Gamma ray astronomy at very high energies”, Springer, 2013
F.A. Aharonian, S.R. Kelner, D. Khangulyan “Radiation Processes in High Energy Astrophysics” , Oxford University Press, to
be submitted in 2023
Abstract：
Extraterrestrial gamma rays tell us about the most energetic and violent phenomena in the Universe. The respective research area - Gamma Ray Astronomy - addresses a broad range of nonthermal high-processes of particle acceleration, propagation, and radiation on all astronomical scales, from compact neutron stars and black holes to large-scale cosmological structures. Gamma-ray studies cover a wide range of areas linked to the physics and astrophysics of SNRs, Star Formation,Magnetospheres of Pulsars and Black Holes, physics of relativistic outflows - Pulsar Winds, AGN jets, GRBs, etc. The major objectives of Gamma Ray Astronomy are linked, in one way or another, to the "centuries-old mystery" of the Origin of Cosmic Rays. Therefore,identifying the main CR contributors with different astronomical source populations is considered one of the top priorities of high-energy astrophysics. The search for the sites of Cosmic Ray production ("Cosmic Ray Factories") can be done best with space-borne and ground-based $\gamma$-ray detectors covering an unprecedented energy range over ten energy decades, from MeV to PeV energies. Studies of the physics of CR factories, especially the so-called extreme accelerators responsible for the production of particles up to 10^15 eV in our Galaxy (the so-called PeVatrons) and > 10^20 eV in extragalactic objects (the so-called ZeVatrons) are of particular interest. In this lecture, I briefly describe the recent exciting results obtained in the very-high (VHE) and ultra-high (UHE) energy bands in the context of the origin of cosmic rays.
