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MAGIC Collaboration, V A Acciari, S Ansoldi, L A Antonelli, A Arbet Engels, C Arcaro, D Baack, A Babić, B Banerjee, P Bangale, U Barres de Almeida, J A Barrio, J Becerra González, W Bednarek, E Bernardini, A Berti, J Besenrieder, W Bhattacharyya, C Bigongiari, A Biland, O Blanch, G Bonnoli, R Carosi, G Ceribella, A Chatterjee, S M Colak, P Colin, E Colombo, J L Contreras, J Cortina, S Covino, P Cumani, V D’Elia, P Da Vela, F Dazzi, A De Angelis, B De Lotto, M Delfino, J Delgado, F Di Pierro, A Domínguez, D Dominis Prester, D Dorner, M Doro, S Einecke, D Elsaesser, V Fallah Ramazani, A Fattorini, A Fernández-Barral, G Ferrara, D Fidalgo, L Foffano, M V Fonseca, L Font, C Fruck, D Galindo, S Gallozzi, R J García López, M Garczarczyk, M Gaug, P Giammaria, N Godinović, D Guberman, D Hadasch, A Hahn, T Hassan, J Herrera, J Hoang, D Hrupec, S Inoue, K Ishio, Y Iwamura, H Kubo, J Kushida, D Kuveždić, A Lamastra, D Lelas, F Leone, E Lindfors, S Lombardi, F Longo, M López, A López-Oramas, C Maggio, P Majumdar, M Makariev, G Maneva, M Manganaro, K Mannheim, L Maraschi, M Mariotti, M Martínez, S Masuda, D Mazin, M Minev, J M Miranda, R Mirzoyan, E Molina, A Moralejo, V Moreno, E Moretti, V Neustroev, A Niedzwiecki, M Nievas Rosillo, C Nigro, K Nilsson, D Ninci, K Nishijima, K Noda, L Nogués, S Paiano, J Palacio, D Paneque, R Paoletti, J M Paredes, G Pedaletti, P Peñil, M Peresano, M Persic, P G Prada Moroni, E Prandini, I Puljak, J R Garcia, W Rhode, M Ribó, J Rico, C Righi, A Rugliancich, L Saha, T Saito, K Satalecka, T Schweizer, J Sitarek, I Šnidarić, D Sobczynska, A Somero, A Stamerra, M Strzys, T Surić, F Tavecchio, P Temnikov, T Terzić, M Teshima, N Torres-Albà, S Tsujimoto, G Vanzo, M Vazquez Acosta, I Vovk, J E Ward, M Will, D Zarić, E de Oña Wilhelmi, D F Torres, R Zanin, Discovery of TeV γ-ray emission from the neighbourhood of the supernova remnant G24.7+0.6 by MAGIC, Monthly Notices of the Royal Astronomical Society, Volume 483, Issue 4, March 2019, Pages 4578–4585, https://doi.org/10.1093/mnras/sty3387

Discovery of TeV γ-ray emission from the neighbourhood of the supernova remnant G24.7+0.6 by MAGIC

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Author: Acciari, V. A.1,2; Ansoldi, S.3,4,5; Antonelli, L. A.6;
Engels, A. Arbet7; Arcaro, C.8,9; Baack, D.10; Babic, A.11,12,13,14,15; Banerjee, B.16; Bangale, P.17; de Almeida, U. Barres17; Barrio, J. A.18; Becerra Gonzalez, J.1,2; Bednarek, W.19; Bernardini, E.8,9,20,21; Berti, A.3,4,22; Besenrieder, J.17; Bhattacharyya, W.20; Bigongiari, C.6; Biland, A.7; Blanch, O.23; Bonnoli, G.24,25; Carosi, R.26,27; Ceribella, G.17; Chatterjee, A.16; Colak, S. M.23; Colin, P.17; Colombo, E.1,2; Contreras, J. L.18; Cortina, J.23; Covino, S.6; Cumani, P.23; D'Elia, V.6; Da Vela, P.24,25; Dazzi, F.6; De Angelis, A.8,9; De Lotto, B.3,4; Delfino, M.23,28; Delgado, J.23,28; Di Pierro, F.8,9; Dominguez, A.18; Prester, D. Dominis11,12,13,14,15; Dorner, D.29; Doro, M.8,9; Einecke, S.10; Elsaesser, D.10; Ramazani, V. Fallah30,31,32; Fattorini, A.10; Fernandez-Barral, A.8,9; Ferrara, G.6; Fidalgo, D.18; Foffano, L.8,9; Fonseca, M. V.18; Font, L.33,34; Fruck, C.17; Galindo, D.5; Gallozzi, S.6; Garcia Lopez, R. J.1,2; Garczarczyk, M.20; Gaug, M.33,34; Giammaria, P.6; Godinovic, N.11,12,13,14,15; Guberman, D.23; Hadasch, D.35,36,37,38; Hahn, A.17; Hassan, T.23; Herrera, J.1,2; Hoang, J.18; Hrupec, D.11,12,13,14,15; Inoue, S.35,36,37,38; Ishio, K.17; Iwamura, Y.35,36,37,38; Kubo, H.35,36,37,38; Kushida, J.35,36,37,38; Kuvezdic, D.11,12,13,14,15; Lamastra, A.6; Lelas, D.11,12,13,14,15; Leone, F.6; Lindfors, E.30,31,32; Lombardi, S.6; Longo, F.3,4,22; Lopez, M.18; Lopez-Oramas, A.1,2; Maggio, C.33,34; Majumdar, P.16; Makariev, M.39; Maneva, G.39; Manganaro, M.11,12,13,14,15; Mannheim, K.29; Maraschi, L.6; Mariotti, M.8,9; Martinez, M.23; Masuda, S.35,36,37,38; Mazin, D.17,35,36,37,38; Minev, M.39; Miranda, J. M.24,25; Mirzoyan, R.17; Molina, E.5; Moralejo, A.23; Moreno, V.33,34; Moretti, E.23; Neustroev, V.30,31,32; Niedzwiecki, A.19; Nievas Rosillo, M.18; Nigro, C.20; Nilsson, K.30,31,32; Ninci, D.23; Nishijima, K.35,36,37,38; Noda, K.35,36,37,38; Nogues, L.23; Paiano, S.8,9; Palacio, J.23; Paneque, D.17; Paoletti, R.24,25; Paredes, J. M.5; Pedaletti, G.20; Penil, P.18; Peresano, M.3,4; Persic, M.3,4,40; Moroni, P. G. Prada26,27; Prandini, E.8,9; Puljak, I.11,12,13,14,15; Garcia, J. R.17; Rhode, W.10; Ribo, M.5; Rico, J.23; Righi, C.6; Rugliancich, A.24,25; Saha, L.18; Saito, T.35,36,37,38; Satalecka, K.20; Schweizer, T.17; Sitarek, J.19; Snidaric, I.11,12,13,14,15; Sobczynska, D.19; Somero, A.1,2; Stamerra, A.6; Strzys, M.17; Suric, T.11,12,13,14,15; Tavecchio, F.6; Temnikov, P.39; Terzic, T.11,12,13,14,15; Teshima, M.17,35,36,37,38; Torres-Alba, N.5; Tsujimoto, S.35,36,37,38; Vanzo, G.1,2; Vazquez Acosta, M.1,2; Vovk, I.17; Ward, J. E.23; Will, M.17; Zaric, D.11,12,13,14,15; de Ona Wilhelmi, E.3,4,41,42,43; Torres, D. F.41,42,44; Zanin, R.1,2,5,23
Organizations: 1Inst Astrofis Canarias, E-38200 San Cristobal la Laguna, Spain.
2Univ La Laguna, Dpto Astrofis, E-38206 Tenerife, Spain.
3Univ Udine, I-33100 Udine, Italy.
4INFN Trieste, I-33100 Udine, Italy.
5UB, IEEC, ICC, E-08028 Barcelona, Spain.
6Natl Inst Astrophys INAF, I-00136 Rome, Italy.
7Swiss Fed Inst Technol, CH-8093 Zurich, Switzerland.
8Univ Padua, I-35131 Padua, Italy.
9INFN, I-35131 Padua, Italy.
10Tech Univ Dortmund, D-44221 Dortmund, Germany.
11Univ Rijeka, Croatian MAGIC Consortium, Rijeka, Croatia.
12Univ Split, FESB, Split 21000, Croatia.
13Univ Zagreb, FER, Zagreb 10000, Croatia.
14Univ Osijek, Osijek 31000, Croatia.
15Rudjer Boskovic Inst, Zagreb 10000, Croatia.
16Saha Inst Nucl Phys, HBNI, 1-AF Bidhannagar,Salt Lake,Sec 1, Kolkata 700064, India.
17Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany.
18Univ Complutense, Unidad Particulas & Cosmol UPARCOS, E-28040 Madrid, Spain.
19Univ Lodz, Dept Astrophys, PL-90236 Lodz, Poland.
20Deutsches Elektronen Synchrotron DESY, D-15738 Zeuthen, Germany.
21Humboldt Univ, Inst Phys, D-12489 Berlin, Germany.
22Univ Trieste, Dipartimento Fis, I-34127 Trieste, Italy.
23BIST, IFAE, E-08193 Bellaterra, Barcelona, Spain.
24Univ Siena, I-53100 Siena, Italy.
25INFN Pisa, I-53100 Siena, Italy.
26Univ Pisa, I-56126 Pisa, Italy.
27INFN Pisa, I-56126 Pisa, Italy.
28PIC, E-08193 Bellaterra, Barcelona, Spain.
29Univ Wurzburg, D-97074 Wurzburg, Germany.
30Univ Turku, Tuorla Observ, Finnish MAGIC Consortium, Vaisalantie 20, FI-21500 Piikkio, Finland.
31Univ Turku, Finnish Ctr Astron ESO FINCA, Vaisalantie 20, FI-21500 Piikkio, Finland.
32Univ Oulu, Astron Div, Vaisalantie 20, FI-90014 Oulu, Finland.
33Univ Autonoma Barcelona, Dept Fis, E-08193 Bellaterra, Spain.
34Univ Autonoma Barcelona, CERES, IEEC, E-08193 Bellaterra, Spain.
35Univ Tokyo, ICRR, Japanese MAGIC Consortium, Chiba 2778582, Japan.
36Kyoto Univ, Dept Phys, Kyoto 6068502, Japan.
37Tokai Univ, Tokyo, Kanagawa 2591292, Japan.
38RIKEN, Saitama 3510198, Japan.
39Bulgarian Acad Sci, Inst Nucl Res & Nucl Energy, BG-1784 Sofia, Bulgaria.
40CSIC, IEEC, Inst Space Sci, E-08193 Barcelona, Spain.
41IEEC, E-08034 Barcelona, Spain.
42AvH Guest Deutsch Elektronen Synchrotron DESY, D-15738 Zeuthen, Germany.
43ICREA, E-08010 Barcelona, Spain.
44Max Planck Inst Kernphys, D-69029 Heidelberg, Germany.
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 0.9 MB)
Persistent link: http://urn.fi/urn:nbn:fi-fe2019102935499
Language: English
Published: Oxford University Press, 2019
Publish Date: 2019-10-29
Description:

Abstract

SNR G24.7+0.6 is a 9.5 kyrs radio and γ-ray supernova remnant evolving in a dense medium. In the GeV regime, SNR G24.7+0.6 (3FHL J1834.1–0706e/FGES J1834.1–0706) shows a hard spectral index (Γ ∼ 2) up to 200 GeV, which makes it a good candidate to be observed with Cherenkov telescopes such as MAGIC. We observed the field of view of SNR G24.7+0.6 with the MAGIC telescopes for a total of 31 h. We detect very high-energy γ-ray emission from an extended source located 0.34° away from the centre of the radio SNR. The new source, named MAGIC J1835–069 is detected up to 5 TeV, and its spectrum is well-represented by a power-law function with spectral index of 2.74 ± 0.08. The complexity of the region makes the identification of the origin of the very high-energy emission difficult; however, the spectral agreement with the LAT source and overlapping position at less than 1.5σ point to a common origin. We analysed 8 yr of Fermi-LAT data to extend the spectrum of the source down to 60 MeV. Fermi-LAT and MAGIC spectra overlap within errors and the global broad-band spectrum is described by a power law with exponential cut-off at 1.9 ± 0.5 TeV. The detected γ-ray emission can be interpreted as the results of proton–proton interaction between the supernova and the CO-rich surrounding.

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Series: Monthly notices of the Royal Astronomical Society
ISSN: 0035-8711
ISSN-E: 1365-8711
ISSN-L: 0035-8711
Volume: 483
Issue: 4
Pages: 4578 - 4585
DOI: 10.1093/mnras/sty3387
OADOI: https://oadoi.org/10.1093/mnras/sty3387
Type of Publication: A1 Journal article – refereed
Field of Science: 115 Astronomy and space science
Subjects:
ISM: clouds
ISM: supernova remnants
acceleration of particles
cosmic rays
gamma-rays: general
Article
Funding: We would like to thank the Instituto de Astrofísica de Canarias for the excellent working conditions at the Observatorio del Roque de los Muchachos in La Palma. The financial support of the German BMBF and MPG, the Italian INFN and INAF, the Swiss National Fund SNF, the ERDF under the Spanish MINECO (FPA2015-69818-P, FPA2012-36668, FPA2015-68378-P, FPA2015-69210-C6-2-R, FPA2015-69210-C6-4-R, FPA2015-69210-C6-6-R, AYA2015-71042-P, AYA2016-76012-C3-1-P, ESP2015-71662-C2-2-P, CSD2009-00064), and the Japanese JSPS and MEXT is gratefully acknowledged. This work was also supported by the Spanish Centro de Excelencia ‘Severo Ochoa’ SEV-2012-0234 and SEV-2015-0548, and Unidad de Excelencia ‘María de Maeztu’ MDM-2014-0369, by the Croatian Science Foundation (HrZZ) Project IP-2016-06-9782 and the University of Rijeka Project 13.12.1.3.02, by the DFG Collaborative Research Centres SFB823/C4 and SFB876/C3, the Polish National Research Centre grant UMO-2016/22/M/ST9/00382 and by the Brazilian MCTIC, CNPq, and FAPERJ.
Copyright information: This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society. © 2018 The Author(s). Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.