H.E.S.S. detection of TeV emission from the interaction region between the supernova remnant G349.7+0.2 and a molecular cloud

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H.E.S.S. detection of TeV emission from the interaction region between the supernova remnant G349.7+0.2 and a molecular cloud

Abramowski, A. (author): University of Hamburg, Germany,Natl Acad Sci Republ Armenia, Armenia ; Yerevan Phys Inst, Armenia,Univ Amsterdam, Netherlands,Uniwersytet Jagiellonski, Poland

Aharonian, F. (author): Max Planck Inst Kernphys, Germany ; Dublin Inst Adv Studies, Ireland ; Natl Acad Sci Republ Armenia, Armenia

Benkhali, F. Ait (author): Max Planck Inst Kernphys, Germany

Akhperjanian, A. G. (author): Natl Acad Sci Republ Armenia, Armenia ; Yerevan Phys Inst, Armenia

Anguner, E. O. (author): Humboldt Univ, Germany

Backes, M. (author): Univ Namibia, Namibia

Balenderans, S. (author): Univ Durham, UK

Balzer, A. (author): Univ Amsterdam, Netherlands

Barnacka, A. (author): Uniwersytet Jagiellonski, Poland

Becherini, Yvonne (author): Linnéuniversitetet,Institutionen för fysik och elektroteknik (IFE)

Tjus, J. Becker (author)

Berge, D. (author)

Bernhard, S. (author)

Bernloehr, K. (author)

Birsin, E. (author)

Biteau, J. (author)

Boettcher, M. (author)

Boisson, C. (author)

Bolmont, J. (author)

Bordas, P. (author)

Bregeon, J. (author)

Brun, F. (author)

Brun, P. (author)

Bryan, M. (author)

Bulik, T. (author)

Carrigan, S. (author)

Casanova, S. (author)

Meyer, Manuel (author): Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)

Chatraborty, N. (author)

Chalme-Calvet, R. (author)

Chaves, R. C. G. (author)

Chretien, M. (author)

Colafrancesco, S. (author)

Cologna, G. (author)

Conrad, Jan (author): Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)

Couturier, C. (author)

Cui, Y. (author)

Davids, I. D. (author)

Degrange, B. (author)

Deil, C. (author)

deWilt, P. (author)

Djannati-Atai, A. (author)

Domainko, W. (author)

Donath, A. (author)

Drury, L. O ' C (author)

Dubus, G. (author)

Dutson, K. (author)

Dyks, J. (author)

Dyrda, M. (author)

Edwards, T. (author)

Egberts, K. (author)

Eger, P. (author)

Espigat, P. (author)

Farnier, Christian (author): Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)

Fegan, S. (author)

Feinstein, F. (author)

Fernandes, M. V. (author)

Fernandez, D. (author)

Fiasson, A. (author)

Fontaine, G. (author)

Foerster, A. (author)

Fuessling, M. (author)

Gabici, S. (author)

Gajdus, M. (author)

Gallant, Y. A. (author)

Garrigoux, T. (author)

Giavitto, G. (author)

Giebels, B. (author)

Glicenstein, J. F. (author)

Gottschall, D. (author)

Grondin, M. -H (author)

Grudzinska, M. (author)

Hadasch, D. (author)

Haeffner, S. (author)

Hahn, J. (author)

Harris, J. (author)

Heinzelmann, G. (author)

Henri, G. (author)

Hermann, G. (author)

Hervet, O. (author)

Hillert, A. (author)

Hinton, J. A. (author)

Hofmann, W. (author)

Hofverberg, P. (author)

Holler, M. (author)

Horns, D. (author)

Ivascenko, A. (author)

Jacholkowska, A. (author)

Jahn, C. (author)

Jamrozy, M. (author)

Janiak, M. (author)

Jankowsky, F. (author)

Jung-Richardt, O. (author)

Kastendieck, M. A. (author)

Katarzynski, K. (author)

Katz, U. (author)

Kaufmann, S. (author)

Khelifi, B. (author)

Kieffer, M. (author)

Klepser, S. (author)

Klochkov, D. (author)

Kluzniak, W. (author)

Kolitzus, D. (author)

Komin, Nu (author)

Kosack, K. (author)

Krakau, S. (author)

Krayzel, F. (author)

Krueger, P. P. (author)

Laffon, H. (author)

Lamanna, G. (author)

Lefaucheur, J. (author)

Lefranc, V. (author)

Lemiere, A. (author)

Lemoine-Goumard, M. (author)

Lenain, J. P. (author)

Lohse, T. (author)

Lopatin, A. (author)

Lu, C-C (author)

Marandon, V. (author)

Marcowith, A. (author)

Marx, R. (author)

Maurin, G. (author)

Maxted, N. (author)

Mayer, M. (author)

McComb, T. J. L. (author)

Mehault, J. (author)

Meintjes, P. J. (author)

Menzler, U. (author)

Meyer, M. (author)

Mitchell, A. M. W. (author)

Moderski, R. (author)

Mohamed, M. (author)

Morå, Knut (author): Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)

Moulin, E. (author)

Murach, T. (author)

de Naurois, M. (author)

Niemiec, J. (author)

Nolan, S. J. (author)

Oakes, L. (author)

Odaka, H. (author)

Ohm, S. (author)

Opitz, B. (author)

Ostrowski, M. (author)

Oya, I. (author)

Panter, M. (author)

Parsons, R. D. (author)

Anibas, M. Paz (author)

Pekeur, N. W. (author)

Pelletier, G. (author)

Petrucci, P-O (author)

Peyaud, B. (author)

Pita, S. (author)

Poon, H. (author)

Puehlhofer, G. (author)

Punch, Michael (author): Université Paris Diderot, France

Quirrenbach, A. (author)

Raab, S. (author)

Reichardt, I. (author)

Reimer, A. (author)

Reimer, O. (author)

Renaud, M. (author)

de los Reyes, R. (author)

Rieger, F. (author)

Romoli, C. (author)

Rosier-Lees, S. (author)

Rowell, G. (author)

Rudak, B. (author)

Rulten, C. B. (author)

Sahakian, V. (author)

Salek, D. (author)

Sanchez, D. A. (author)

Santangelo, A. (author)

Schlickeiser, R. (author)

Schuessler, F. (author)

Schulz, A. (author)

Schwanke, U. (author)

Schwarzburg, S. (author)

Schwemmer, S. (author)

Sol, H. (author)

Spanier, F. (author)

Spengler, Gerrit (author): Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)

Spies, F. (author)

Stawarz, L. (author)

Steenkamp, R. (author)

Stegmann, C. (author)

Stinzing, F. (author)

Stycz, K. (author)

Sushch, I. (author)

Tavernet, J-P (author)

Tavernier, T. (author)

Taylor, A. M. (author)

Terrier, R. (author)

Tluczykont, M. (author)

Trichard, C. (author)

Valerius, K. (author)

van Eldik, C. (author)

van Soelen, B. (author)

Vasileiadis, G. (author)

Veh, J. (author)

Venter, C. (author)

Viana, A. (author)

Vincent, P. (author)

Vink, J. (author)

Voelk, H. J. (author)

Volpe, F. (author)

Vorster, M. (author)

Vuillaume, T. (author)

Wagner, S. J. (author)

Wagner, P. (author)

Wagner, R. M. (author)

Ward, M. (author)

Weidinger, M. (author)

Weitzel, Q. (author)

White, R. (author)

Wierzcholska, A. (author)

Willmann, P. (author)

Woernlein, A. (author)

Wouters, D. (author)

Yang, R. (author)

Zabalza, V. (author)

Zaborov, D. (author)

Zacharias, M. (author)

Zdziarski, A. A. (author)

Zech, A. (author)

Zechlin, H-S (author)

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(creator_code:org_t)

2015-01-30
2015
English.
In: Astronomy and Astrophysics. - : EDP Sciences. - 0004-6361 .- 1432-0746. ; 574, s. 1-7

Related links:: https://doi.org/10.1...; show more...; https://www.aanda.or...; https://doi.org/10.1...; https://urn.kb.se/re...; https://doi.org/10.1...; https://urn.kb.se/re...; show less...

Journal article (peer-reviewed)

Abstract Subject headings

G349.7+0.2 is a young Galactic supernova remnant (SNR) located at the distance of 11.5 kpc and observed across the entire electromagnetic spectrum from radio to high energy (HE; 0.1 GeV < E < 100 GeV) gamma-rays. Radio and infrared observations indicate that the remnant is interacting with a molecular cloud. In this paper, the detection of very high energy (VHE, E > 100 GeV) gamma-ray emission coincident with this SNR with the High Energy Stereoscopic System (HESS.) is reported. This makes it one of the farthest Galactic SNR ever detected in this domain. An integral flux F(E > 400 GeV) = (6.5 +/- 1.1(stat) +/- 1.3(syst)) x 10-11 ph cm(-2) s(-1) corresponding to similar to 0.7% of that of the Crab Nebula and to a luminosity of similar to 10(34) erg s(-1) above the same energy threshold, and a steep photon index Gamma(VHE) = 2.8 +/- 0.27(stat) +/- 0.20(syst) are measured. The analysis of more than 5 yr of Fermi-LAT data towards this source shows a power-law like spectrum with a best-fit photon index Gamma(HE) = 2.2 +/- 0.04.2(stat-0.31sys)(+0.13), The combined gamma-ray spectrum of 0349.7+0.2 can be described by either a broken power law (I3PL) or a power law with exponential (or sub exponential) cutoff (PLC). In the former case, the photon break energy is found at E-br,E-gamma = 551(-30)(+70) GeV, slightly higher than what is usually observed in the HE/VHE gamma-ray emitting middle-aged SNRs known to be interacting with molecular clouds. In the latter case. the exponential (respectively sub-exponential) cutoff energy is measured at E-cat,E-gamma = 1.4(-0.55)(+1.6) (respectively 0.35(-0.21)(+0.75)) TeV. A pion decay process resulting from the interaction of the accelerated protons and nuclei with the dense surrounding medium is clearly the preferred scenario to explain the gamma-ray emission. The BPL with a spectral steepening of 0.5-1 and the PLC provide equally good fits to the data. The product or the average gas density and the total energy content of accelerated protons and nuclei amounts to nu W-p similar to 5 x 10(51) erg cm(-3)

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By the author/editor: Abramowski, A.; Aharonian, F.; Benkhali, F. Ait; Akhperjanian, A. ...; Anguner, E. O.; Backes, M.; show more...; Balenderans, S.; Balzer, A.; Barnacka, A.; Becherini, Yvonn ...; Tjus, J. Becker; Berge, D.; Bernhard, S.; Bernloehr, K.; Birsin, E.; Biteau, J.; Boettcher, M.; Boisson, C.; Bolmont, J.; Bordas, P.; Bregeon, J.; Brun, F.; Brun, P.; Bryan, M.; Bulik, T.; Carrigan, S.; Casanova, S.; Meyer, Manuel; Chatraborty, N.; Chalme-Calvet, R ...; Chaves, R. C. G.; Chretien, M.; Colafrancesco, S ...; Cologna, G.; Conrad, Jan; Couturier, C.; Cui, Y.; Davids, I. D.; Degrange, B.; Deil, C.; deWilt, P.; Djannati-Atai, A ...; Domainko, W.; Donath, A.; Drury, L. O ' C; Dubus, G.; Dutson, K.; Dyks, J.; Dyrda, M.; Edwards, T.; Egberts, K.; Eger, P.; Espigat, P.; Farnier, Christi ...; Fegan, S.; Feinstein, F.; Fernandes, M. V.; Fernandez, D.; Fiasson, A.; Fontaine, G.; Foerster, A.; Fuessling, M.; Gabici, S.; Gajdus, M.; Gallant, Y. A.; Garrigoux, T.; Giavitto, G.; Giebels, B.; Glicenstein, J. ...; Gottschall, D.; Grondin, M. -H; Grudzinska, M.; Hadasch, D.; Haeffner, S.; Hahn, J.; Harris, J.; Heinzelmann, G.; Henri, G.; Hermann, G.; Hervet, O.; Hillert, A.; Hinton, J. A.; Hofmann, W.; Hofverberg, P.; Holler, M.; Horns, D.; Ivascenko, A.; Jacholkowska, A.; Jahn, C.; Jamrozy, M.; Janiak, M.; Jankowsky, F.; Jung-Richardt, O ...; Kastendieck, M. ...; Katarzynski, K.; Katz, U.; Kaufmann, S.; Khelifi, B.; Kieffer, M.; Klepser, S.; Klochkov, D.; Kluzniak, W.; Kolitzus, D.; Komin, Nu; Kosack, K.; Krakau, S.; Krayzel, F.; Krueger, P. P.; Laffon, H.; Lamanna, G.; Lefaucheur, J.; Lefranc, V.; Lemiere, A.; Lemoine-Goumard, ...; Lenain, J. P.; Lohse, T.; Lopatin, A.; Lu, C-C; Marandon, V.; Marcowith, A.; Marx, R.; Maurin, G.; Maxted, N.; Mayer, M.; McComb, T. J. L.; Mehault, J.; Meintjes, P. J.; Menzler, U.; Meyer, M.; Mitchell, A. M. ...; Moderski, R.; Mohamed, M.; Morå, Knut; Moulin, E.; Murach, T.; de Naurois, M.; Niemiec, J.; Nolan, S. J.; Oakes, L.; Odaka, H.; Ohm, S.; Opitz, B.; Ostrowski, M.; Oya, I.; Panter, M.; Parsons, R. D.; Anibas, M. Paz; Pekeur, N. W.; Pelletier, G.; Petrucci, P-O; Peyaud, B.; Pita, S.; Poon, H.; Puehlhofer, G.; Punch, Michael; Quirrenbach, A.; Raab, S.; Reichardt, I.; Reimer, A.; Reimer, O.; Renaud, M.; de los Reyes, R.; Rieger, F.; Romoli, C.; Rosier-Lees, S.; Rowell, G.; Rudak, B.; Rulten, C. B.; Sahakian, V.; Salek, D.; Sanchez, D. A.; Santangelo, A.; Schlickeiser, R.; Schuessler, F.; Schulz, A.; Schwanke, U.; Schwarzburg, S.; Schwemmer, S.; Sol, H.; Spanier, F.; Spengler, Gerrit; Spies, F.; Stawarz, L.; Steenkamp, R.; Stegmann, C.; Stinzing, F.; Stycz, K.; Sushch, I.; Tavernet, J-P; Tavernier, T.; Taylor, A. M.; Terrier, R.; Tluczykont, M.; Trichard, C.; Valerius, K.; van Eldik, C.; van Soelen, B.; Vasileiadis, G.; Veh, J.; Venter, C.; Viana, A.; Vincent, P.; Vink, J.; Voelk, H. J.; Volpe, F.; Vorster, M.; Vuillaume, T.; Wagner, S. J.; Wagner, P.; Wagner, R. M.; Ward, M.; Weidinger, M.; Weitzel, Q.; White, R.; Wierzcholska, A.; Willmann, P.; Woernlein, A.; Wouters, D.; Yang, R.; Zabalza, V.; Zaborov, D.; Zacharias, M.; Zdziarski, A. A.; Zech, A.; Zechlin, H-S; show less...

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H.E.S.S. detection of TeV emission from the interaction region between the supernova remnant G349.7+0.2 and a molecular cloud

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