Sensitivity of the Cherenkov Telescope Array to a dark matter signal from the Galactic centre

被引:88
作者
Acharyya, A. [1 ,2 ]
Adam, R. [3 ]
Adams, C. [4 ]
Agudo, I [5 ]
Aguirre-Santaella, A. [6 ,7 ]
Alfaro, R. [8 ]
Alfaro, J. [9 ]
Alispach, C. [10 ]
Aloisio, R. [11 ,12 ]
Batista, R. Alves [13 ]
Amati, L. [14 ]
Ambrosi, G. [15 ,16 ]
Anguner, E. O. [17 ]
Antonelli, L. A. [18 ]
Aramo, C. [19 ]
Araudo, A. [20 ,21 ]
Armstrong, T. [17 ]
Arqueros, F. [22 ,23 ]
Asano, K. [24 ]
Ascasibar, Y. [6 ,7 ]
Ashley, M. [25 ]
Balazs, C. [26 ]
Ballester, O. [27 ]
Baquero Larriva, A. [22 ,23 ]
Martins, V. Barbosa [28 ]
Barkov, M. [29 ]
de Almeida, U. Barres [30 ]
Barrio, J. A. [22 ,23 ]
Bastieri, D. [31 ,32 ]
Becerra, J. [33 ,34 ]
Beck, G. [35 ]
Tjus, J. Becker [36 ]
Benbow, W. [37 ]
Benito, M. [38 ]
Berge, D. [28 ]
Bernardini, E. [28 ]
Bernloehr, K. [39 ]
Berti, A. [40 ]
Bertucci, B. [15 ,16 ]
Beshley, V [41 ]
Biasuzzi, B. [42 ]
Biland, A. [43 ]
Bissaldi, E. [44 ,45 ]
Biteau, J. [42 ]
Blanch, O. [27 ]
Blazek, J. [20 ]
Bocchino, F. [46 ]
Boisson, C. [47 ,48 ]
Arbeletche, L. Bonneau [49 ]
Bordas, P. [50 ]
机构
[1] Univ Durham, Dept Phys, South Rd, Durham DH1 3LE, England
[2] Univ Durham, Ctr Adv Instrumentat, Durham DH1 3LE, England
[3] Inst Polytech Paris, Lab Leprince Ringuet, Ecole Polytech, CNRS IN2P3,UMR 7638, F-91128 Palaiseau, France
[4] Columbia Univ, Dept Phys, 538 West 120th St, New York, NY 10027 USA
[5] CSIC, Inst Astrofis Andalucia, Glorieta Astron S-N, E-18008 Granada, Spain
[6] Univ Autonoma Madrid, Inst Fis Teor UAM 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] Univ Nacl Autonoma Mexico, Ciudad De Mxico 04510, Mexico
[9] Pontificia Univ Catolica Chile, Av Libertador Bernardo OHiggins 340, Santiago, Chile
[10] Univ Geneva, Dept Phys Nucl & Corpusculaire, 24 Rue Gen Dufour, CH-1211 Geneva 4, Switzerland
[11] Univ Aquila, Ist Nazl Fis Nucl, Dipartimento Sci Fis & Chim, Via Vetoio 1,Viale Crispi 7, I-67100 Laquila, Italy
[12] Gran Sasso Sci Inst, Via Vetoio 1,Viale Crispi 7, I-67100 Laquila, Italy
[13] Univ Sao Paulo, Inst Astron Geofis & Ciencias Atmosfer, Cidade Univ,R Matao 1226, BR-05508090 Sao Paulo, SP, Brazil
[14] INAF Osservatorio Astrofis & Sci Spazio Bologna, Via Piero Gobetti 93-3, I-40129 Bologna, Italy
[15] Ist Nazl Fis Nucl, Sez Perugia, Via A Pascoli, I-06123 Perugia, Italy
[16] Univ Perugia, Via A Pascoli, I-06123 Perugia, Italy
[17] Aix Marseille Univ, CPPM, CNRS IN2P3, 163 Ave Luminy, F-13288 Marseille 09, France
[18] INAF Osservatorio Astron Roma, Via Frascati 33, I-00040 Monte Porzio Catone, Italy
[19] Ist Nazl Fis Nucl, Sez Napoli, Via Cintia,Ed G, I-80126 Naples, Italy
[20] Czech Acad Sci, FZU Inst Phys, Na Slovance 1999-2, Prague 18221 8, Czech Republic
[21] Czech Acad Sci, Astron Inst, Bocni 2 1401, Prague 14100, Czech Republic
[22] Univ Complutense Madrid, EMFTEL Dept, E-28040 Madrid, Spain
[23] Univ Complutense Madrid, IPARCOS, E-28040 Madrid, Spain
[24] Univ Tokyo, Inst Cosm Ray Res, 5-1-5 Kawashiwa No Ha, Kashiwa, Chiba 2778582, Japan
[25] Univ New South Wales, Sch Phys, Sydney, NSW 2052, Australia
[26] Monash Univ, Sch Phys & Astron, Melbourne, Vic 3800, Australia
[27] Barcelona Inst Sci & Technol, Inst Fis Altes Energies IFAE, Campus UAB, Bellaterra 08193, Barcelona, Spain
[28] DESY, Platanenallee 6, D-15738 Zeuthen, Germany
[29] RIKEN, Inst Phys & Chem Res, 2-1 Hirosawa, Wako, Saitama 3510198, Japan
[30] Ctr Brasileiro Pesquisas Fis, Rua Xavier Sigaud 150, BR-22290180 Rio De Janeiro, RJ, Brazil
[31] Ist Nazl Fis Nucl, Sez Padova, Via Marzolo 8, I-35131 Padua, Italy
[32] Univ Padua, Via Marzolo 8, I-35131 Padua, Italy
[33] Univ La Laguna, Inst Astrofis Canarias, Tenerife, Spain
[34] Univ La Laguna, Dept Astrofis, Tenerife, Spain
[35] Univ Witwatersrand, 1 Jan Smuts Ave, ZA-2000 Johannesburg, South Africa
[36] Ruhr Univ Bochum, Lehrstuhl Weltraum & Astrophys 4, Inst Theoret Phys, Univ Str 150, D-44801 Bochum, Germany
[37] Ctr Astrophys Harvard & Smithsonian, 60 Garden St, Cambridge, MA 02180 USA
[38] Univ Estadual Paulista, Inst Fis Teor, ICTP South Amer Inst Fundamental Res, Rua Dr Bento Teobaldo Ferraz 271, BR-01140070 Sao Paulo, Brazil
[39] Max Planck Inst Kernphys, Saupfercheckweg 1, D-69117 Heidelberg, Germany
[40] Ist Nazl Fis Nucl, Sez Torino, Via P Giuria 1, I-10125 Turin, Italy
[41] NASU, Pidstryhach Inst Appl Problems Mech & Math, 3B Naukova St, UA-79060 Lvov, Ukraine
[42] Univ Paris, IN2P3 CNRS, Lab Phys Infinis 2, Irene Joliot Curie,Univ Paris Saclay, 15 Rue Georges Clemenceau, F-91406 Orsay, France
[43] Swiss Fed Inst Technol, Inst Particle Phys, Schafmattstr 20, CH-8093 Zurich, Switzerland
[44] Ist Nazl Fis Nucl, Sez Bari, Via Orabona 4, I-70124 Bari, Italy
[45] Politecn Bari, Via Orabona 4, I-70124 Bari, Italy
[46] INAF Osservatorio Astron Palermo GS Vaiana, Piazza Parlamento 1, I-90134 Palermo, Italy
[47] PSL Univ, CNRS, Observ Paris, LUTH,GEPI, 5 Pl Jules Janssen, F-92190 Meudon, France
[48] PSL Univ, CNRS, Observ Paris, LERMA, 5 Pl Jules Janssen, F-92190 Meudon, France
[49] Univ Sao Paulo, Inst Fis Sao Carlos, Av Trabalhador Sao Carlense 400, BR-13566590 Sao Carlos, SP, Brazil
[50] Univ Barcelona, Inst Ciencies Cosmos, Dept Fis Quan & Astrofis, IEEC UB, Marti i Franques 1, Barcelona 08028, Spain
基金
巴西圣保罗研究基金会; 加拿大自然科学与工程研究理事会; 瑞士国家科学基金会; 欧盟地平线“2020”; 澳大利亚研究理事会; 瑞典研究理事会; 美国国家科学基金会; 新加坡国家研究基金会; 英国科学技术设施理事会; 芬兰科学院;
关键词
dark matter experiments; dark matter theory; gamma ray experiments; galaxy morphology; GAMMA-RAY SIGNALS; RADIATIVE PROCESSES; ANNIHILATION; SIMULATIONS; PARTICLE; CLUMPY; MASS; CONTRACTION; CANDIDATES; PROFILES;
D O I
10.1088/1475-7516/2021/01/057
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We provide an updated assessment of the power of the Cherenkov Telescope Array (CTA) to search for thermally produced dark matter at the TeV scale, via the associated gamma-ray signal from pair-annihilating dark matter particles in the region around the Galactic centre. We find that CTA will open a new window of discovery potential, significantly extending the range of robustly testable models given a standard cuspy profile of the dark matter density distribution. Importantly, even for a cored profile, the projected sensitivity of CTA will be sufficient to probe various well-motivated models of thermally produced dark matter at the TeV scale. This is due to CTA's unprecedented sensitivity, angular and energy resolutions, and the planned observational strategy. The survey of the inner Galaxy will cover a much larger region than corresponding previous observational campaigns with imaging atmospheric Cherenkov telescopes. CTA will map with unprecedented precision the large-scale diffuse emission in high-energy gamma rays, constituting a background for dark matter searches for which we adopt state-of-the-art models based on current data. Throughout our analysis, we use up-to-date event reconstruction Monte Carlo tools developed by the CTA consortium, and pay special attention to quantifying the level of instrumental systematic uncertainties, as well as background template systematic errors, required to probe thermally produced dark matter at these energies.
引用
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页数:63
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