Search for New Cosmic-Ray Acceleration Sites within the 4FGL Catalog Galactic Plane Sources | |
Abdollahi, S.77; Acero, F.76; Ackermann, M.75; Baldini, L.74; Ballet, J.76; Barbiellini, G.72,73; Bastieri, D.69,70,71; Bellazzini, R.68; Berenji, B.67; Berretta, A.66 | |
刊名 | ASTROPHYSICAL JOURNAL |
2022-07-01 | |
卷号 | 933期号:2 |
ISSN号 | 0004-637X |
DOI | 10.3847/1538-4357/ac704f |
产权排序 | 第43完成单位 |
文献子类 | Article |
英文摘要 | Cosmic rays are mostly composed of protons accelerated to relativistic speeds. When those protons encounter interstellar material, they produce neutral pions, which in turn decay into gamma-rays. This offers a compelling way to identify the acceleration sites of protons. A characteristic hadronic spectrum, with a low-energy break around 200 MeV, was detected in the gamma-ray spectra of four supernova remnants (SNRs), IC 443, W44, W49B, and W51C, with the Fermi Large Area Telescope. This detection provided direct evidence that cosmic-ray protons are (re-)accelerated in SNRs. Here, we present a comprehensive search for low-energy spectral breaks among 311 4FGL catalog sources located within 5 degrees from the Galactic plane. Using 8 yr of data from the Fermi Large Area Telescope between 50 MeV and 1 GeV, we find and present the spectral characteristics of 56 sources with a spectral break confirmed by a thorough study of systematic uncertainty. Our population of sources includes 13 SNRs for which the proton-proton interaction is enhanced by the dense target material; the high-mass gamma-ray binary LS I+61 303; the colliding wind binary eta Carinae; and the Cygnus star-forming region. This analysis better constrains the origin of the gamma-ray emission and enlarges our view to potential new cosmic-ray acceleration sites. |
学科主题 | 天文学 ; 星系与宇宙学 |
URL标识 | 查看原文 |
出版地 | TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND |
资助项目 | National Aeronautics and Space Administration in the United States ; Department of Energy in the United States ; Commissariat a l'Energie Atomique in France ; Centre National de la Recherche Scientifique/Institut National de Physique Nucleaire et de Physique des Particules in France ; Agenzia Spaziale Italiana in Italy ; Istituto Nazionale di Fisica Nucleare in Italy ; Ministry of Education, Culture, Sports, Science and Technology (MEXT) in Japan ; High Energy Accelerator Research Organization (KEK) in Japan ; Japan Aerospace Exploration Agency (JAXA) in Japan ; K. A. Wallenberg Foundation in Sweden ; Swedish Research Council in Sweden ; Swedish National Space Board in Sweden ; Istituto Nazionale di Astrofisica in Italy ; Centre National d'Etudes Spatiales in France ; Agence Nationale de la Recherche[ANR-17-CE31-0014] ; NASA |
WOS关键词 | LARGE-AREA TELESCOPE ; SUPERNOVA REMNANT ; HESS J1813-178 ; FERMI ; EMISSION ; REGION ; CLOUDS |
WOS研究方向 | Astronomy & Astrophysics |
语种 | 英语 |
出版者 | IOP Publishing Ltd |
WOS记录号 | WOS:000825100200001 |
资助机构 | National Aeronautics and Space Administration in the United States ; Department of Energy in the United States ; Commissariat a l'Energie Atomique in France ; Centre National de la Recherche Scientifique/Institut National de Physique Nucleaire et de Physique des Particules in France ; Agenzia Spaziale Italiana in Italy ; Istituto Nazionale di Fisica Nucleare in Italy ; Ministry of Education, Culture, Sports, Science and Technology (MEXT) in Japan ; High Energy Accelerator Research Organization (KEK) in Japan ; Japan Aerospace Exploration Agency (JAXA) in Japan ; K. A. Wallenberg Foundation in Sweden ; Swedish Research Council in Sweden ; Swedish National Space Board in Sweden ; Istituto Nazionale di Astrofisica in Italy ; Centre National d'Etudes Spatiales in France ; Agence Nationale de la Recherche[ANR-17-CE31-0014] ; NASA |
内容类型 | 期刊论文 |
版本 | 出版稿 |
源URL | [http://ir.ynao.ac.cn/handle/114a53/25338] |
专题 | 云南天文台_高能天体物理研究组 |
通讯作者 | Ballet, J. |
作者单位 | 1.The Oskar Klein Centre for Cosmoparticle Physics, AlbaNova, SE-106 91 Stockholm, Sweden; 2.School of Astronomy and Space Science, University of Science and Technology of China, Hefei 230026, People's Republic Of China 3.Center for Astrophysics and Cosmology, University of Nova Gorica, Nova Gorica, Slovenia; 4.Praxis Inc., Alexandria, VA 22303, resident at Naval Research Laboratory, Washington, DC 20375, USA; 5.Institució Catalana de Recerca i Estudis Avançats (ICREA), E-08010 Barcelona, Spain; 6.Institute of Space Sciences (ICE, CSIC), Campus UAB, Carrer de Magrans s/n, E-08193 Barcelona, Spain; and Institut d'Estudis Espacials de Catalunya (IEEC), E-08034 Barcelona, Spain; 7.Department of Physics, University of Maryland, College Park, MD 20742, USA; 8.Solar-Terrestrial Environment Laboratory, Nagoya University, Nagoya 464-8601, Japan; 9.Purdue University Northwest, Hammond, IN 46323, USA; 10.NYCB Real-Time Computing Inc., Lattingtown, NY 11560-1025, USA; |
推荐引用方式 GB/T 7714 | Abdollahi, S.,Acero, F.,Ackermann, M.,et al. Search for New Cosmic-Ray Acceleration Sites within the 4FGL Catalog Galactic Plane Sources[J]. ASTROPHYSICAL JOURNAL,2022,933(2). |
APA | Abdollahi, S..,Acero, F..,Ackermann, M..,Baldini, L..,Ballet, J..,...&Zaharijas, G..(2022).Search for New Cosmic-Ray Acceleration Sites within the 4FGL Catalog Galactic Plane Sources.ASTROPHYSICAL JOURNAL,933(2). |
MLA | Abdollahi, S.,et al."Search for New Cosmic-Ray Acceleration Sites within the 4FGL Catalog Galactic Plane Sources".ASTROPHYSICAL JOURNAL 933.2(2022). |
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