KMS National Astronomical Observatories, CAS
HESS J1858+020: A GeV-TeV source possibly powered by cosmic rays from SNR G35.6-0.4 | |
Cui, Y.1; Xin, Y.2; Liu, S.3; Tam, P. H. T.1; Puehlhofer, G.4; Zhu, H.5 | |
2021-02-19 | |
Source Publication | ASTRONOMY & ASTROPHYSICS
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ISSN | 0004-6361 |
Volume | 646Pages:7 |
Abstract | Context. The supernova remnant (SNR) G35.6-0.4 shows a non-thermal radio shell, however, no gamma-ray or X-ray counterparts have been found for it thus far. One TeV source, HESS J1858+020, was found near the SNR and this source is spatially associated with some clouds at 3.6 kpc.Aims. To attain a better understanding of the origin of HESS J1858+020, we further investigate the association between SNR cosmic rays (CRs) and the clouds through the Fermi-LAT analysis and hadronic modeling. Methods. We performed the Fermi-LAT analysis to explore the GeV emission in and around the SNR. We explored the SNR physics with previously observed multi-wavelength data. We built a hadronic model using runaway CRs of the SNR to explain the GeV-TeV observation. Results. We found a hard GeV source (SrcX2) that is spatially coincident with both HESS J1858+020 and a molecular cloud complex at 3.6 kpc. In addition, a soft GeV source (SrcX1) was found at the northern edge of the SNR. The GeV spectrum of SrcX2 connects well with the TeV spectrum of HESS J1858+020. The entire gamma-ray spectrum ranges from several GeV up to tens of TeV and it follows a power-law with an index of similar to 2.15. We discuss several pieces of observational evidence to support the middle-aged SNR argument. Using runaway CRs from the SNR, our hadronic model explains the GeV-TeV emission at HESS J1858+020, with a diffusion coefficient that is much lower than the Galactic value. |
Keyword | ISM: supernova remnants acceleration of particles gamma rays: ISM cosmic rays |
Funding Organization | Fundamental Research Funds for the Central Universities grant ; Fundamental Research Funds for the Central Universities grant ; National Science Foundation of China (NSFC) ; National Science Foundation of China (NSFC) ; Natural Science Foundation for Young Scholars of Jiangsu Province, China ; Natural Science Foundation for Young Scholars of Jiangsu Province, China ; NSFC ; NSFC ; International Partnership Program of Chinese Academy of Sciences ; International Partnership Program of Chinese Academy of Sciences ; National Key R&D Program of China ; National Key R&D Program of China ; Fundamental Research Funds for the Central Universities grant ; Fundamental Research Funds for the Central Universities grant ; National Science Foundation of China (NSFC) ; National Science Foundation of China (NSFC) ; Natural Science Foundation for Young Scholars of Jiangsu Province, China ; Natural Science Foundation for Young Scholars of Jiangsu Province, China ; NSFC ; NSFC ; International Partnership Program of Chinese Academy of Sciences ; International Partnership Program of Chinese Academy of Sciences ; National Key R&D Program of China ; National Key R&D Program of China ; Fundamental Research Funds for the Central Universities grant ; Fundamental Research Funds for the Central Universities grant ; National Science Foundation of China (NSFC) ; National Science Foundation of China (NSFC) ; Natural Science Foundation for Young Scholars of Jiangsu Province, China ; Natural Science Foundation for Young Scholars of Jiangsu Province, China ; NSFC ; NSFC ; International Partnership Program of Chinese Academy of Sciences ; International Partnership Program of Chinese Academy of Sciences ; National Key R&D Program of China ; National Key R&D Program of China ; Fundamental Research Funds for the Central Universities grant ; Fundamental Research Funds for the Central Universities grant ; National Science Foundation of China (NSFC) ; National Science Foundation of China (NSFC) ; Natural Science Foundation for Young Scholars of Jiangsu Province, China ; Natural Science Foundation for Young Scholars of Jiangsu Province, China ; NSFC ; NSFC ; International Partnership Program of Chinese Academy of Sciences ; International Partnership Program of Chinese Academy of Sciences ; National Key R&D Program of China ; National Key R&D Program of China |
DOI | 10.1051/0004-6361/202039041 |
Language | 英语 |
Funding Project | Fundamental Research Funds for the Central Universities grant[20lgpy170] ; National Science Foundation of China (NSFC)[11633007] ; National Science Foundation of China (NSFC)[11661161010] ; National Science Foundation of China (NSFC)[U1731136] ; Natural Science Foundation for Young Scholars of Jiangsu Province, China[BK20191109] ; NSFC[U1738122] ; NSFC[U1931204] ; NSFC[11603039] ; International Partnership Program of Chinese Academy of Sciences[114332KYSB20170008] ; National Key R&D Program of China[2018YFA0404203] |
Funding Organization | Fundamental Research Funds for the Central Universities grant ; Fundamental Research Funds for the Central Universities grant ; National Science Foundation of China (NSFC) ; National Science Foundation of China (NSFC) ; Natural Science Foundation for Young Scholars of Jiangsu Province, China ; Natural Science Foundation for Young Scholars of Jiangsu Province, China ; NSFC ; NSFC ; International Partnership Program of Chinese Academy of Sciences ; International Partnership Program of Chinese Academy of Sciences ; National Key R&D Program of China ; National Key R&D Program of China ; Fundamental Research Funds for the Central Universities grant ; Fundamental Research Funds for the Central Universities grant ; National Science Foundation of China (NSFC) ; National Science Foundation of China (NSFC) ; Natural Science Foundation for Young Scholars of Jiangsu Province, China ; Natural Science Foundation for Young Scholars of Jiangsu Province, China ; NSFC ; NSFC ; International Partnership Program of Chinese Academy of Sciences ; International Partnership Program of Chinese Academy of Sciences ; National Key R&D Program of China ; National Key R&D Program of China ; Fundamental Research Funds for the Central Universities grant ; Fundamental Research Funds for the Central Universities grant ; National Science Foundation of China (NSFC) ; National Science Foundation of China (NSFC) ; Natural Science Foundation for Young Scholars of Jiangsu Province, China ; Natural Science Foundation for Young Scholars of Jiangsu Province, China ; NSFC ; NSFC ; International Partnership Program of Chinese Academy of Sciences ; International Partnership Program of Chinese Academy of Sciences ; National Key R&D Program of China ; National Key R&D Program of China ; Fundamental Research Funds for the Central Universities grant ; Fundamental Research Funds for the Central Universities grant ; National Science Foundation of China (NSFC) ; National Science Foundation of China (NSFC) ; Natural Science Foundation for Young Scholars of Jiangsu Province, China ; Natural Science Foundation for Young Scholars of Jiangsu Province, China ; NSFC ; NSFC ; International Partnership Program of Chinese Academy of Sciences ; International Partnership Program of Chinese Academy of Sciences ; National Key R&D Program of China ; National Key R&D Program of China |
WOS Research Area | Astronomy & Astrophysics |
WOS Subject | Astronomy & Astrophysics |
WOS ID | WOS:000621392400001 |
Publisher | EDP SCIENCES S A |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.bao.ac.cn/handle/114a11/79175 |
Collection | 中国科学院国家天文台 |
Corresponding Author | Cui, Y. |
Affiliation | 1.Sun Yat Sen Univ, Sch Phys & Astron, Guangzhou 510275, Peoples R China 2.Southwest Jiaotong Univ, Sch Phys Sci & Technol, Chengdu 610031, Peoples R China 3.Chinese Acad Sci, Key Lab Dark Matter & Space Astron, Purple Mt Observ, Nanjing 210033, Peoples R China 4.Eberhard Karls Univ Tubingen, Inst Astron & Astrophys, Sand 1, D-72076 Tubingen, Germany 5.Chinese Acad Sci, Key Lab Opt Astron, Natl Astron Observ, Beijing 100101, Peoples R China |
Recommended Citation GB/T 7714 | Cui, Y.,Xin, Y.,Liu, S.,et al. HESS J1858+020: A GeV-TeV source possibly powered by cosmic rays from SNR G35.6-0.4[J]. ASTRONOMY & ASTROPHYSICS,2021,646:7. |
APA | Cui, Y.,Xin, Y.,Liu, S.,Tam, P. H. T.,Puehlhofer, G.,&Zhu, H..(2021).HESS J1858+020: A GeV-TeV source possibly powered by cosmic rays from SNR G35.6-0.4.ASTRONOMY & ASTROPHYSICS,646,7. |
MLA | Cui, Y.,et al."HESS J1858+020: A GeV-TeV source possibly powered by cosmic rays from SNR G35.6-0.4".ASTRONOMY & ASTROPHYSICS 646(2021):7. |
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