Sensitivity of the Cherenkov Telescope Array to spectral signatures of hadronic PeVatrons with application to Galactic Supernova Remnants

被引：8

作者：

Acero, F. ^{[1
]}

Acharyya, A. ^{[2
]}

Adam, R. ^{[3
]}

Aguasca-Cabot, A. ^{[4
]}

Agudo, I. ^{[5
]}

Aguirre-Santaella, A. ^{[6
,7
]}

Alfaro, J. ^{[8
]}

Aloisio, R. ^{[9
,10
]}

Crespo, N. Alvarez ^{[11
]}

Batista, R. Alves ^{[6
,7
]}

Amati, L. ^{[12
]}

Amato, E. ^{[13
]}

Ambrosi, G. ^{[14
,15
]}

Anguner, E. O. ^{[16
,17
]}

Aramo, C. ^{[18
]}

Arcaro, C. ^{[19
,20
]}

Armstrong, T. ^{[17
]}

Asano, K. ^{[21
]}

Ascasibar, Y. ^{[6
,7
]}

Aschersleben, J. ^{[22
]}

Backes, M. ^{[23
,24
]}

Baktash, A. ^{[25
]}

Balazs, C. ^{[26
]}

Balbo, M. ^{[27
]}

Ballet, J. ^{[1
]}

Larriva, A. Baquero ^{[28
,29
,161
]}

Martins, V. Barbosa ^{[30
]}

Barres de Almeida, U. ^{[31
]}

Barrio, J. A. ^{[28
,29
]}

Bastieri, D. ^{[19
,20
]}

Baxter, J. R. ^{[21
]}

Tjus, J. Becker ^{[32
]}

Benbow, W. ^{[33
]}

Bernardos-Martin, M. I. ^{[33
]}

Bernete, J. ^{[71
]}

Berti, A. ^{[35
]}

Bertucci, B. ^{[14
,15
]}

Beshley, V. ^{[34
]}

Bhattacharjee, P. ^{[35
]}

Bhattacharyya, S. ^{[36
]}

Biland, A. ^{[37
]}

Bissaldi, E. ^{[38
,39
]}

Biteau, J. ^{[40
]}

Blanch, O. ^{[41
]}

Bordas, P. ^{[4
]}

Bottacini, E. ^{[19
,20
]}

Bregeon, J. ^{[43
]}

Brose, R. ^{[44
]}

Bucciantini, N. ^{[13
]}

Bulgarelli, A. ^{[12
]}

机构：

[1] Univ Paris Cite, Univ Paris Saclay, CNRS, CEA,AIM, F-91191 Gif Sur Yvette, France

[2] Univ Alabama, Dept Phys & Astron, Gallalee Hall,Box 870324, Tuscaloosa, AL 35487 USA

[3] Ecole Polytech, Inst Polytech Paris, CNRS, Lab Leprince Ringuet,UMR 7638,IN2P3, F-91128 Palaiseau, France

[4] Univ Barcelona, Inst Ciencies Cosmos, Dept Fis Quant & Astrofis, IEEC UB, Marti & Franques 1, Barcelona 08028, Spain

[5] CSIC, Inst Astrofis Andalucia, Glorieta Astron S-N, Granada 18008, Spain

[6] Univ Autonoma Madrid, Inst Fis Teor, CSIC, C Nicolas Cabrera 13-15,Campus Cantoblanco UAM, Madrid 28049, Spain

[7] Univ Autonoma Madrid, Dept Fis Teor, C Nicolas Cabrera 13-15,Campus Cantoblanco UAM, Madrid 28049, Spain

[8] Pontificia Univ Catolica Chile, Ave Libertador Bernardo OHiggins 340, Santiago, Chile

[9] Gran Sasso Sci Inst GSSI, Viale Francesco Crispi 7, I-67100 Laquila, Italy

[10] Ist Nazl Fis Nucl, Lab Nazl Gran Sasso LNGS, Via G Acitelli 22, I-67100 Assergi, AQ, Italy

[11] Univ Complutense Madrid, Grp Elect, Ave Complutense S-N, Madrid 28040, Spain

[12] Osservatorio Astrofis & Sci Spazio Bologna, INAF, Via Piero Gobetti 93-3, I-40129 Bologna, Italy

[13] Osserv Astrofis Arcetri, INAF, Largo E Fermi 5, I-50125 Florence, Italy

[14] Ist Nazl Fis Nucl, Sez Perugia, Via A Pascoli, I-06123 Perugia, Italy

[15] Univ Perugia, Via A Pascoli, I-06123 Perugia, Italy

[16] TUBITAK Res Inst Fundamental Sci, TR-41470 Kocaeli, Turkiye

[17] Aix Marseille Univ, CNRS, IN2P3, CPPM, 163 Ave Luminy, F-13288 Marseille 09, France

[18] Ist Nazl Fis Nucl, Sez Napoli, Via Cintia, I-80126 Naples, Italy

[19] Ist Nazl Fis Nucl, Sez Padova, Via Marzolo 8, I-35131 Padua, Italy

[20] Univ Padua, Via Marzolo 8, I-35131 Padua, Italy

[21] Univ Tokyo, Inst Cosm Ray Res, 5-1-5 Kashiwa No Ha, Kashiwa, Chiba 2778582, Japan

[22] Univ Groningen, Kapteyn Astron Inst, Landleven 12, NL-9747 AD Groningen, Netherlands

[23] Univ Namibia, Dept Phys Chem & Mat Sci, 340 Mandume Ndemufayo Ave, Pioneerspark, Windhoek, Namibia

[24] Northwest Univ, Ctr Space Res, ZA-2520 Potchefstroom, South Africa

[25] Univ Hamburg, Inst Expt Phys, Luruper Chaussee 149, D-22761 Hamburg, Germany

[26] Monash Univ, Sch Phys & Astron, Melbourne, Vic 3800, Australia

[27] Univ Geneva, Dept Astron, Chemin Ecogia 16, CH-1290 Versoix, Switzerland

[28] Univ Complutense Madrid, IPARCOS, Inst Fis Particulas & Cosmos, E-28040 Madrid, Spain

[29] Univ Complutense Madrid, EMFTEL Dept, E-28040 Madrid, Spain

[30] Deutsch Elekt Synchrotron, Platanenallee 6, D-15738 Zeuthen, Germany

[31] Ctr Brasileiro Pesquisas Fis, Rua Dr Xavier Sigaud 150, BR-22290180 Rio De Janeiro, RJ, Brazil

[32] Ruhr Univ Bochum, Inst Theoret Phys, Lehrstuhl Plasma Astroteilchenphys 4, Univ Str 150, D-44801 Bochum, Germany

[33] Harvard & Smithsonian, Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 USA

[34] NASU, Pidstryhach Inst Appl Problems Mech & Math, 3B Naukova St, UA-79060 Lvov, Ukraine

[35] Univ Savoie Mont Blanc, IN2P3, CNRS, Lab Annecy Phys Particules, F-74000 Annecy, France

[36] Univ Nova Gorica, Ctr Astrophys & Cosmol, Vipavska 13, Nova Gorica 5000, Slovenia

[37] ETH, Inst Particle Phys & Astrophys, Otto Stern Weg 5, CH-8093 Zurich, Switzerland

[38] Ist Nazl Fis Nucl, Sez Bari, Via Orabona 4, I-70124 Bari, Italy

[39] Politecn Bari, Via Orabona 4, I-70124 Bari, Italy

[40] Univ Paris, Univ Paris Saclay, CNRS, Lab Phys Infinis 2,Irene Joliot Curie,IN2P, 15 Rue Georges Clemenceau, F-91406 Orsay, France

[41] Barcelona Inst Sci & Technol, Inst Fis Altes Energies IFAE, Campus UAB, Bellaterra 08193, Barcelona, Spain

[42] Univ Montpellier, Lab Universe & Particules Montpellier, CNRS, IN2P3, CC 72,Pl Eugene Bataillon, F-34095 Montpellier 5, France

[43] Univ Grenoble Alpes, CNRS, Lab Phys Subatom & Cosmol, 53 Ave Martyrs, F-38026 Grenoble, France

[44] Dublin Inst Adv Studies, 31 Fitzwilliam Pl, Dublin 2, Ireland

[45] Columbia Univ, Dept Phys, 538 West 120th St, New York, NY 10027 USA

[46] Osserv Astron Roma, INAF, Via Frascati 33, I-00078 Monte Porzio Catone, Italy

[47] Univ Roma, Dipartimento Fis Sapienza, Piazzale A Moro 5, I-00151 Rome, Italy

[48] Ist Astrofis Spaziale & Fis Cosm Milano, INAF, Via A Corti 12, I-20133 Milan, Italy

[49] Ist Astrofis & Planetol Spaziali IAPS, INAF, Via Fosso del Cavaliere 100, I-00133 Rome, Italy

[50] Ist Nazl Fis Nucl, Sez Pisa, Largo Pontecorvo 3, I-56217 Pisa, Italy

来源：

ASTROPARTICLE PHYSICS | 2023年 / 150卷

基金：

美国国家科学基金会; 英国科学技术设施理事会; 瑞典研究理事会; 新加坡国家研究基金会; 瑞士国家科学基金会; 加拿大自然科学与工程研究理事会; 澳大利亚研究理事会; 芬兰科学院; 巴西圣保罗研究基金会;

关键词：

Cosmic rays; Galactic PeVatrons; Gamma rays; general; (Stars; ) supernovae; Methods; data analysis; statistical; COSMIC-RAY ACCELERATION; PARTICLE-ACCELERATION; SUPERBUBBLE ORIGIN; ENERGY; EVOLUTION; EMISSION; BUBBLES; SEARCH; PROPAGATION; POPULATION;

D O I：

10.1016/j.astropartphys.2023.102850

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The local Cosmic Ray (CR) energy spectrum exhibits a spectral softening at energies around 3 PeV. Sources which are capable of accelerating hadrons to such energies are called hadronic PeVatrons. However, hadronic PeVatrons have not yet been firmly identified within the Galaxy. Several source classes, including Galactic Supernova Remnants (SNRs), have been proposed as PeVatron candidates. The potential to search for hadronic PeVatrons with the Cherenkov Telescope Array (CTA) is assessed. The focus is on the usage of very high energy y-ray spectral signatures for the identification of PeVatrons. Assuming that SNRs can accelerate CRs up to knee energies, the number of Galactic SNRs which can be identified as PeVatrons with CTA is estimated within a model for the evolution of SNRs. Additionally, the potential of a follow-up observation strategy under moonlight conditions for PeVatron searches is investigated. Statistical methods for the identification of PeVatrons are introduced, and realistic Monte-Carlo simulations of the response of the CTA observatory to the emission spectra from hadronic PeVatrons are performed. Based on simulations of a simplified model for the evolution for SNRs, the detection of a y-ray signal from in average 9 Galactic PeVatron SNRs is expected to result from the scan of the Galactic plane with CTA after 10 h of exposure. CTA is also shown to have excellent potential to confirm these sources as PeVatrons in deep observations with O(100) hours of exposure per source.

引用

页数：28

共 116 条

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