论文标题

伽马射线观察大力神群的前景

Prospects for gamma-ray observations of Hercules cluster

论文作者

Voitsekhovskyi, Vadym

论文摘要

星系簇(GC)是宇宙大规模结构中最大,最大的重力物体。由于簇内培养基(ICM)和宇宙射线(CRS)的keV温度,GC是热X射线辐射的有效来源和非热的Leptonic(Synchrotron)无线电发射。 GC也是HADRONIC CRS的储藏室,但尚未检测到GCS的非热辐射伽玛射线排放(主要是由于PP碰撞和随后的Pion Decay引起的)。在这项工作中,我们模拟了从Hercules群集的主要部分-GC A2151中的预期非热态伽马射线和中微子排放,并估计了通过现有(Fermi-Lat,Lhass,lhasso,icecube)和计划的(CTA,ICECUBE,ICECUBE-GEN2)地面基于基于基础的Ans Spectors的观察的观点。

Galaxy clusters (GCs) are the largest and most massive gravitationally bound objects in the large-scale structure of the Universe. Due to keV temperatures of virialized gas in the intracluster medium (ICM) and presence of cosmic rays (CRs), GCs are effective sources of thermal X-ray radiation and non-thermal leptonic (synchrotron) radio emission. GCs are also store-rooms for hadronic CRs, but non-thermal hadronic gamma-ray emission (mainly, due to pp collisions and subsequent pion decay) from GCs has not been detected yet. In this work we simulate the expected non-thermal hadronic gamma-ray and neutrino emission from dominant part of Hercules cluster - GC A2151 - and estimate a perspective of detection of this emission by existing (Fermi-LAT, LHASSO, IceCube) and planned (CTA, IceCube-Gen2) ground-based ans space-based detectors.

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