Population study of Galactic supernova remnants at very high γ-ray energies with HESS

被引:37
作者
Abdalla, H. [1 ]
Abramowski, A. [2 ]
Aharonian, F. [3 ,4 ,5 ]
Benkhali, F. Ait [3 ]
Anguener, E. O. [22 ]
Arakawa, M. [41 ]
Arrieta, M. [16 ]
Aubert, P. [24 ]
Backes, M. [8 ]
Balzer, A. [9 ]
Barnard, M. [1 ]
Becherini, Y. [10 ]
Tjus, J. Becker [11 ]
Berge, D. [12 ,13 ]
Bernhard, S. [14 ]
Bernloehr, K. [3 ]
Blackwell, R. [15 ]
Boettcher, M. [1 ]
Boisson, C. [16 ]
Bolmont, J. [17 ]
Bonnefoy, S. [36 ]
Bordas, P. [3 ]
Bregeon, J. [18 ]
Brun, F. [26 ]
Brun, P. [19 ]
Bryan, M. [9 ]
Buechele, M. [35 ]
Bulik, T. [20 ]
Capasso, M. [28 ]
Caroff, S. [29 ]
Carosi, A. [24 ]
Casanova, S. [3 ,22 ]
Cerruti, M. [17 ]
Chakraborty, N. [3 ]
Chaves, R. C. G. [18 ]
Chen, A. [23 ]
Chevalier, J. [24 ]
Colafrancesco, S. [23 ]
Condon, B. [26 ]
Conrad, J. [27 ]
Davids, I. D. [8 ]
Decock, J. [19 ]
Deil, C. [9 ]
Devin, J. [18 ]
deWilt, P. [15 ]
Dirson, L. [2 ]
Djannati-Atai, A. [30 ]
Donath, A. [3 ]
Drury, L. O'C. [4 ]
Dutson, K. [32 ]
机构
[1] North West Univ, Ctr Space Res, ZA-2520 Potchefstroom, South Africa
[2] Univ Hamburg, Inst Expt Phys, Chaussee 149, D-22761 Hamburg, Germany
[3] Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany
[4] Dublin Inst Adv Studies, 31 Fitzwilliam Pl, Dublin 2, Ireland
[5] Natl Acad Sci Republ Armenia, Marshall Baghramian Ave 24, Yerevan 0019, Armenia
[6] Yerevan Phys Inst, 2 Alikhanian Bros St, Yerevan 375036, Armenia
[7] Humboldt Univ, Inst Phys, Newtonstr 15, D-12489 Berlin, Germany
[8] Univ Namibia, Dept Phys, Private Bag 13301, Windhoek, Namibia
[9] Univ Amsterdam, Astron Inst Anton Pannekoek, GRAPPA, Sci Pk 904, NL-1098 XH Amsterdam, Netherlands
[10] Linnaeus Univ, Dept Phys & Elect Engn, S-35195 Vaxjo, Sweden
[11] Ruhr Univ Bochum, Inst Theoret Phys, Lehrstuhl Weltraum & Astrophys 4, D-44780 Bochum, Germany
[12] Univ Amsterdam, Astron Inst Anton Pannekoek, GRAPPA, Sci Pk 904, NL-1098 XH Amsterdam, Netherlands
[13] Univ Amsterdam, Inst High Energy Phys, Sci Pk 904, NL-1098 XH Amsterdam, Netherlands
[14] Leopold Franzens Univ Innsbruck, Inst Astro & Teilchenphys, A-6020 Innsbruck, Austria
[15] Univ Adelaide, Sch Phys Sci, Adelaide, SA 5005, Australia
[16] Univ Paris Diderot, PSL Res Univ, CNRS, Observ Paris,LUTH, 5 Pl Jules Janssen, F-92190 Meudon, France
[17] UPMC Univ Paris 06, Univ Paris Diderot, Sorbonne Univ, CNRS,Sorbonne Paris Cite,LPNHE, 4 Pl Jussieu, F-75252 Paris 5, France
[18] Univ Montpellier, CNRS, IN2P3, Lab Univ & Particules Montpellier, CC 72,Pl Eugene Bataillon, F-34095 Montpellier 5, France
[19] Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France
[20] Univ Warsaw, Astron Observ, Al Ujazdowskie 4, PL-00478 Warsaw, Poland
[21] Aix Marseille Univ, CNRS, IN2P3, CPPM, Marseille, France
[22] PAN, Inst Fizyki Jadrowej, Ul Radzikowskiego 152, PL-31342 Krakow, Poland
[23] Univ Witwatersrand, Sch Phys, 1 Jan Smuts Ave, ZA-2050 Johannesburg, South Africa
[24] Univ Savoie Mt Blanc, CNRS, IN2P3, Lab Annecy le Vieux Phys Particules, F-74941 Annecy Le Vieux, France
[25] Heidelberg Univ, Landessternwarte, D-69117 Heidelberg, Germany
[26] Univ Bordeaux, CNRS, IN2P3, Ctr Etud Nucl Bordeaux Gradignan, F-33175 Gradignan, France
[27] Stockholm Univ, Albanova Univ Ctr, Oskar Klein Ctr, Dept Phys, S-10691 Stockholm, Sweden
[28] Univ Tubingen, Inst Astron & Astrophys, Sand 1, D-72076 Tubingen, Germany
[29] Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France
[30] Univ Paris Diderot, CNRS, IN2P3, CEA Irfu,Observ Paris,Sorbonne Paris Cite,APC,Ast, 10 Rue Alice Domon & Leonie Duquet, F-75205 Paris 13, France
[31] Univ Grenoble Alpes, CNRS, IPAG, F-38000 Grenoble, France
[32] Univ Leicester, Dept Phys & Astron, Univ Rd, Leicester LE1 7RH, Leics, England
[33] Polish Acad Sci, Nicolaus Copernicus Astron Ctr, Ul Bartycka 18, PL-00716 Warsaw, Poland
[34] Univ Potsdam, Inst Phys & Astron, Karl Liebknecht Str 24-25, D-14476 Potsdam, Germany
[35] Friedrich Alexander Univ Erlangen Nurnberg, Erlangen Ctr Astroparticle Phys, Erwin Rommel Str 1, D-91058 Erlangen, Germany
[36] DESY, D-15738 Zeuthen, Germany
[37] Uniwersytet Jagiellonski, Obserwatorium Astron, Ul Orla 171, PL-30244 Krakow, Poland
[38] Nicolaus Copernicus Univ, Fac Phys Astron & Informat, Ctr Astron, Grudziadzka 5, PL-87100 Torun, Poland
[39] Univ Free State, Dept Phys, POB 339, ZA-9300 Bloemfontein, South Africa
[40] Heidelberg Univ, ITA, DFG, Heidelberg, Germany
[41] Rikkyo Univ, Dept Phys, Toshima Ku, 3-34-1 Nishi Ikebukuro, Tokyo 1718501, Japan
[42] Japan Aerpspace Explorat Agcy JAXA, ISAS, Chuo Ku, 3-1-1 Yoshinodai, Sagamihara, Kanagawa 2298510, Japan
[43] Univ Manitoba, Dept Phys & Astron, Winnipeg, MB R3T 2N2, Canada
[44] Univ New South Wales, Sch Phys, Sydney, NSW, Australia
[45] Univ Sao Paulo, Inst Fis Sao Carlos, Av Trabalhador Sao Carlense 400, BR-13566590 Sao Carlos, SP, Brazil
[46] Stanford Univ, Kavli Inst Particle Astrophys & Cosmol, Dept Phys, Stanford, CA 94305 USA
[47] Stanford Univ, SLAC Natl Accelerator Lab, Stanford, CA 94305 USA
基金
奥地利科学基金会; 新加坡国家研究基金会; 英国科学技术设施理事会; 日本学术振兴会; 澳大利亚研究理事会;
关键词
gamma rays: general; ISM: supernova remnants; COSMIC-RAYS; MOLECULAR CLOUDS; COMPACT OBJECT; MAGNETIC-FIELD; EMISSION; CASSIOPEIA; ACCELERATION; ASTRONOMY; SPECTRUM; AMPLIFICATION;
D O I
10.1051/0004-6361/201732125
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Shell-type supernova remnants (SNRs) are considered prime candidates for the acceleration of Galactic cosmic rays (CRs) up to the knee of the CR spectrum at E approximate to 3 x 10(15) eV. Our MilkyWay galaxy hosts more than 350 SNRs discovered at radio wavelengths and at high energies, of which 220 fall into the H.E.S.S. Galactic Plane Survey (HGPS) region. Of those, only 50 SNRs are coincident with a H.E.S.S source and in 8 cases the very high-energy (VHE) emission is firmly identified as an SNR. The H.E.S.S. GPS provides us with a legacy for SNR population study in VHE gamma-rays and we use this rich data set to extract VHE flux upper limits from all undetected SNRs. Overall, the derived flux upper limits are not in contradiction with the canonical CR paradigm. Assuming this paradigm holds true, we can constrain typical ambient density values around shell-type SNRs to n <= 7 cm(-3) and electron-to-proton energy fractions above 10 TeV to epsilon(ep) <= 5 x 10(-3). Furthermore, comparisons of VHE with radio luminosities in non-interacting SNRs reveal a behaviour that is in agreement with the theory of magnetic field amplification at shell-type SNRs.
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页数:18
相关论文
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