Conveners
session: Gamma rays
- Qi Feng (B)
Dr
sara tomita
(Tohoku University)
26/10/2021, 08:30
oral
Cosmic rays are thought to be efficiently produced in collisionless shocks in high-energy astrophysical sources, where cosmic rays are diffusively scattered by magnetic fluctuations. The magnetic field near the shock decides the maximum energy of cosmic rays accelerated in the sources and emission mechanisms by the accelerated particles. However, magnetic field strength and structure around...
Dr
Shangming Chen
(Huazhong University of Science and Technology)
26/10/2021, 08:55
oral
TeV gamma-ray binaries, consisting of a compact object in orbit with a massive star, emit broad-band radiations from radio to TeV gamma-rays. The energy spectra of gamma-ray binaries peak above 1 MeV, distinguishing them from the well-known X-ray binaries. So far, less than ten such kinds of binaries have been found, and only 2 of them with the compact objects being identified as rotational...
Tsunefumi Mizuno
(Hiroshima University)
26/10/2021, 10:10
oral
In studying the interstellar medium (ISM) and Galactic cosmic rays (CRs), uncertainty of the interstellar gas density has always been an issue. To overcome this difficulty, we newly considered HI line profiles in the analysis of gamma-ray data from the Fermi Large Area Telescope (LAT) for the MBM 53, 54, and 55 molecular clouds and the Pegasus loop. We decomposed the ISM gas into...
Mr
Kai-Kai Duan
(PMO)
26/10/2021, 10:35
oral
DArk Matter Particle Explorer (DAMPE), a space-borne high energy cosmic ray and gamma-ray detector, has surveyed the whole sky for five years and collected more than 220,000 photons above 2 GeV since the launching on Dec. 17, 2015. Based on the 5-yr DAMPE observation, we have detected more than 200 gamma-ray sources and the Fermi Bubbles. With the excellent energy resolution, DAMPE has an...
Olga Sergijenko
(Taras Shevchenko National University of Kyiv)
26/10/2021, 11:00
oral
Astrophysical objects capable of hadronic acceleration to relativistic energies have long been believed to be sources of astrophysical neutrinos. Nevertheless, the long exposure neutrino sky map shows no significant indication of point sources so far. This may point to a large population of faint, steady sources or flaring objects as origins of this flux. The spatially and temporally 3σ...
