NAOC Open IR
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 PublicationASTRONOMY & ASTROPHYSICS
ISSN0004-6361
Volume646Pages:7
AbstractContext. 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.
KeywordISM: supernova remnants acceleration of particles gamma rays: ISM cosmic rays
Funding OrganizationFundamental 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
DOI10.1051/0004-6361/202039041
Language英语
Funding ProjectFundamental 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 OrganizationFundamental 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 AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000621392400001
PublisherEDP SCIENCES S A
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/79180
Collection中国科学院国家天文台
Corresponding AuthorCui, Y.
Affiliation1.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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