从电磁波谱看 γCygni SNR 形态

IF 1.1 4区物理与天体物理 Q3 ASTRONOMY & ASTROPHYSICS

Astronomische Nachrichten Pub Date : 2024-02-01 DOI:10.1002/asna.20240008

Vera G. Sinitsyna, Vera Y. Sinitsyna, K. A. Balygin, S. S. Borisov, A. I. Klimov, R. M. Mirzafatikhov, N. I. Moseiko

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引用次数: 0

摘要

对高能伽马射线源的研究涉及宇宙射线的起源和银河系在其产生中的作用。SHALON 观测获得了有关 Cygni SNR 银河系超新星残余的结果。观测结果包括 SHALON 的光谱能量分布和发射图，并与 ROSAT 在 X 射线能量范围内获得的其他实验数据、CGPS 的无线电数据以及 Fermi LAT 的 GeV-TeV 伽马射线观测数据进行了比较。在射电、X 射线和 GeV-TeV 伽马射线中探测到的 Cygni SNR 整体特征可能是超新星喷出物和周围介质相互作用产生的冲击的结果。所收集到的实验数据有助于明确 Cygni SNR 中 TeV 射线发射的起源。SNR周围的目标物质密度足以在探测到的区域通过强子的冲击加速产生可观测到的TeV伽马射线通量。SHALON探测到的来自赛格尼SNR西北壳和东南壳的0.8-60 TeV伽马射线发射将有利于证明该超新星残余中伽马射线的强子起源。

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γCygni SNR morphology viewed in the electromagnetic spectrum

The investigation of very high energy gamma-ray sources touches on the problem of the cosmic ray origin and the role of the Galaxy in their generation. The SHALON observations have yielded the results on $γ$ Cygni SNR Galactic supernova remnant. The observation results are presented with spectral energy distribution and emission map by SHALON in comparison with other experiment data obtained by ROSAT in x-ray energy range, radio-data by CGPS, and also observations of GeV–TeV gamma-rays by Fermi LAT. The overall $γ$ Cygni SNR characteristics detected in radio, x-rays, and GeV–TeV gamma-rays can be a result of the shocks at the interaction of the supernova ejecta and the surrounding medium. The collected experimental data help to make clear the origin of TeV $γ$ -ray emission in the $γ$ Cygni SNR. The density of target material in the SNR surroundings is enough to produce the observable TeV gamma-ray flux via the shock acceleration of hadrons in the detected regions. The detection of gamma-ray emission at 0.8–60 TeV from the North-West and South-East shells of $γ$ Cygni SNR by SHALON would favor the hadronic origin of the gamma-rays in this supernova remnant.

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来源期刊

Astronomische Nachrichten 地学天文-天文与天体物理

CiteScore

1.80

自引率

11.10%

发文量

审稿时长

4-8 weeks

期刊介绍： Astronomische Nachrichten, founded in 1821 by H. C. Schumacher, is the oldest astronomical journal worldwide still being published. Famous astronomical discoveries and important papers on astronomy and astrophysics published in more than 300 volumes of the journal give an outstanding representation of the progress of astronomical research over the last 180 years. Today, Astronomical Notes/ Astronomische Nachrichten publishes articles in the field of observational and theoretical astrophysics and related topics in solar-system and solar physics. Additional, papers on astronomical instrumentation ground-based and space-based as well as papers about numerical astrophysical techniques and supercomputer modelling are covered. Papers can be completed by short video sequences in the electronic version. Astronomical Notes/ Astronomische Nachrichten also publishes special issues of meeting proceedings.