Detection of the Characteristic Pion-Decay Signature in Supernova Remnants

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MARC

Ackermann, M.Deutsch Elektronen Synchrotron DESY (author)

Detection of the Characteristic Pion-Decay Signature in Supernova Remnants

Article/chapterEnglish2013

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2013-02-14
American Association for the Advancement of Science (AAAS),2013
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LIBRIS-ID:oai:DiVA.org:su-88281
https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-88281URI
https://doi.org/10.1126/science.1231160DOI
https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-119306URI

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Language:English
Summary in:English

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Subject category:ref swepub-contenttype
Subject category:art swepub-publicationtype

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AuthorCount:169;
QC 20130313. Author count: 169
Cosmic rays are particles (mostly protons) accelerated to relativistic speeds. Despite wide agreement that supernova remnants (SNRs) are the sources of galactic cosmic rays, unequivocal evidence for the acceleration of protons in these objects is still lacking. When accelerated protons encounter interstellar material, they produce neutral pions, which in turn decay into gamma rays. This offers a compelling way to detect the acceleration sites of protons. The identification of pion-decay gamma rays has been difficult because high-energy electrons also produce gamma rays via bremsstrahlung and inverse Compton scattering. We detected the characteristic pion-decay feature in the gamma-ray spectra of two SNRs, IC 443 and W44, with the Fermi Large Area Telescope. This detection provides direct evidence that cosmic-ray protons are accelerated in SNRs.

Subject headings and genre

NATURVETENSKAP Fysik hsv//swe
NATURAL SCIENCES Physical Sciences hsv//eng
gamma-ray emission

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Ajello, M. (author)
Allafort, A. (author)
Baldini, L. (author)
Ballet, J. (author)
Barbiellini, G. (author)
Baring, M. G. (author)
Bastieri, D. (author)
Bechtol, K. (author)
Bellazzini, R. (author)
Blandford, R. D. (author)
Bloom, E. D. (author)
Bonamente, E. (author)
Borgland, A. W. (author)
Bottacini, E. (author)
Brandt, T. J. (author)
Bregeon, J. (author)
Brigida, M. (author)
Bruel, P. (author)
Buehler, R. (author)
Busetto, G. (author)
Buson, S. (author)
Caliandro, G. A. (author)
Cameron, R. A. (author)
Caraveo, P. A. (author)
Casandjian, J. M. (author)
Cecchi, C. (author)
Celik, O. (author)
Charles, E. (author)
Chaty, S. (author)
Chaves, R. C. G. (author)
Chekhtman, A. (author)
Cheung, C. C. (author)
Chiang, J. (author)
Chiaro, G. (author)
Cillis, A. N. (author)
Ciprini, S. (author)
Claus, R. (author)
Cohen-Tanugi, J. (author)
Cominsky, L. R. (author)
Conrad, JanStockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)(Swepub:su)conrad (author)
Corbel, S. (author)
Cutini, S. (author)
D'Ammando, F. (author)
de Angelis, A. (author)
de Palma, F. (author)
Dermer, C. D. (author)
do Couto e Silva, E. (author)
Drell, P. S. (author)
Drlica-Wagner, A. (author)
Falletti, L. (author)
Favuzzi, C. (author)
Ferrara, E. C. (author)
Franckowiak, A. (author)
Fukazawa, Y. (author)
Funk, S. (author)
Fusco, P. (author)
Gargano, F. (author)
Germani, S. (author)
Giglietto, N. (author)
Giommi, P. (author)
Giordano, F. (author)
Giroletti, M. (author)
Glanzman, T. (author)
Godfrey, G. (author)
Grenier, I. A. (author)
Grondin, M. -H (author)
Grove, J. E. (author)
Guiriec, S. (author)
Hadasch, D. (author)
Hanabata, Y. (author)
Harding, A. K. (author)
Hayashida, M. (author)
Hayashi, K. (author)
Hays, E. (author)
Hewitt, J. W. (author)
Hill, A. B. (author)
Hughes, R. E. (author)
Jackson, Miranda S.KTH,Partikel- och astropartikelfysik(Swepub:kth)u1k3ikhm (author)
Jogler, T. (author)
Johannesson, G. (author)
Johnson, A. S. (author)
Kamae, T. (author)
Kataoka, J. (author)
Katsuta, J. (author)
Knoedlseder, J. (author)
Kuss, M. (author)
Lande, J. (author)
Larsson, StefanStockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC),Institutionen för astronomi(Swepub:su)slars (author)
Latronico, L. (author)
Lemoine-Goumard, M. (author)
Longo, F. (author)
Loparco, F. (author)
Lovellette, M. N. (author)
Lubrano, P. (author)
Madejski, G. M. (author)
Massaro, F. (author)
Mayer, M. (author)
Mazziotta, M. N. (author)
McEnery, J. E. (author)
Mehault, J. (author)
Michelson, P. F. (author)
Mignani, R. P. (author)
Mitthumsiri, W. (author)
Mizuno, T. (author)
Moiseev, A. A. (author)
Monzani, M. E. (author)
Morselli, A. (author)
Moskalenko, I. V. (author)
Murgia, S. (author)
Nakamori, T. (author)
Nemmen, R. (author)
Nuss, E. (author)
Ohno, M. (author)
Ohsugi, T. (author)
Omodei, N. (author)
Orienti, M. (author)
Orlando, E. (author)
Ormes, J. F. (author)
Paneque, D. (author)
Perkins, J. S. (author)
Pesce-Rollins, M. (author)
Piron, F. (author)
Pivato, G. (author)
Raino, S. (author)
Rando, R. (author)
Razzano, M. (author)
Razzaque, S. (author)
Reimer, A. (author)
Reimer, O. (author)
Ritz, S. (author)
Romoli, C. (author)
Sanchez-Conde, M. (author)
Schulz, A. (author)
Sgro, C. (author)
Simeon, P. E. (author)
Siskind, E. J. (author)
Smith, D. A. (author)
Spandre, G. (author)
Spinelli, P. (author)
Stecker, F. W. (author)
Strong, A. W. (author)
Suson, D. J. (author)
Tajima, H. (author)
Takahashi, H. (author)
Takahashi, T. (author)
Tanaka, T. (author)
Thayer, J. G. (author)
Thayer, J. B. (author)
Thompson, D. J. (author)
Thorsett, S. E. (author)
Tibaldo, L. (author)
Tibolla, O. (author)
Tinivella, M. (author)
Troja, E. (author)
Uchiyama, Y. (author)
Usher, T. L. (author)
Vandenbroucke, J. (author)
Vasileiou, V. (author)
Vianello, G. (author)
Vitale, V. (author)
Waite, A. P. (author)
Werner, M. (author)
Winer, B. L. (author)
Wood, K. S. (author)
Wood, M. (author)
Yamazaki, R. (author)
Yang, ZhaoyuStockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)(Swepub:su)zhaoyu (author)
Zimmer, StephanStockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)(Swepub:su)stzi0820 (author)
Deutsch Elektronen Synchrotron DESYFysikum (creator_code:org_t)

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In:Science: American Association for the Advancement of Science (AAAS)339:6121, s. 807-8110036-80751095-9203

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By the author/editor: Ackermann, M.; Ajello, M.; Allafort, A.; Baldini, L.; Ballet, J.; Barbiellini, G.; show more...; Baring, M. G.; Bastieri, D.; Bechtol, K.; Bellazzini, R.; Blandford, R. D.; Bloom, E. D.; Bonamente, E.; Borgland, A. W.; Bottacini, E.; Brandt, T. J.; Bregeon, J.; Brigida, M.; Bruel, P.; Buehler, R.; Busetto, G.; Buson, S.; Caliandro, G. A.; Cameron, R. A.; Caraveo, P. A.; Casandjian, J. M ...; Cecchi, C.; Celik, O.; Charles, E.; Chaty, S.; Chaves, R. C. G.; Chekhtman, A.; Cheung, C. C.; Chiang, J.; Chiaro, G.; Cillis, A. N.; Ciprini, S.; Claus, R.; Cohen-Tanugi, J.; Cominsky, L. R.; Conrad, Jan; Corbel, S.; Cutini, S.; D'Ammando, F.; de Angelis, A.; de Palma, F.; Dermer, C. D.; do Couto e Silva ...; Drell, P. S.; Drlica-Wagner, A ...; Falletti, L.; Favuzzi, C.; Ferrara, E. C.; Franckowiak, A.; Fukazawa, Y.; Funk, S.; Fusco, P.; Gargano, F.; Germani, S.; Giglietto, N.; Giommi, P.; Giordano, F.; Giroletti, M.; Glanzman, T.; Godfrey, G.; Grenier, I. A.; Grondin, M. -H; Grove, J. E.; Guiriec, S.; Hadasch, D.; Hanabata, Y.; Harding, A. K.; Hayashida, M.; Hayashi, K.; Hays, E.; Hewitt, J. W.; Hill, A. B.; Hughes, R. E.; Jackson, Miranda ...; Jogler, T.; Johannesson, G.; Johnson, A. S.; Kamae, T.; Kataoka, J.; Katsuta, J.; Knoedlseder, J.; Kuss, M.; Lande, J.; Larsson, Stefan; Latronico, L.; Lemoine-Goumard, ...; Longo, F.; Loparco, F.; Lovellette, M. N ...; Lubrano, P.; Madejski, G. M.; Massaro, F.; Mayer, M.; Mazziotta, M. N.; McEnery, J. E.; Mehault, J.; Michelson, P. F.; Mignani, R. P.; Mitthumsiri, W.; Mizuno, T.; Moiseev, A. A.; Monzani, M. E.; Morselli, A.; Moskalenko, I. V ...; Murgia, S.; Nakamori, T.; Nemmen, R.; Nuss, E.; Ohno, M.; Ohsugi, T.; Omodei, N.; Orienti, M.; Orlando, E.; Ormes, J. F.; Paneque, D.; Perkins, J. S.; Pesce-Rollins, M ...; Piron, F.; Pivato, G.; Raino, S.; Rando, R.; Razzano, M.; Razzaque, S.; Reimer, A.; Reimer, O.; Ritz, S.; Romoli, C.; Sanchez-Conde, M ...; Schulz, A.; Sgro, C.; Simeon, P. E.; Siskind, E. J.; Smith, D. A.; Spandre, G.; Spinelli, P.; Stecker, F. W.; Strong, A. W.; Suson, D. J.; Tajima, H.; Takahashi, H.; Takahashi, T.; Tanaka, T.; Thayer, J. G.; Thayer, J. B.; Thompson, D. J.; Thorsett, S. E.; Tibaldo, L.; Tibolla, O.; Tinivella, M.; Troja, E.; Uchiyama, Y.; Usher, T. L.; Vandenbroucke, J ...; Vasileiou, V.; Vianello, G.; Vitale, V.; Waite, A. P.; Werner, M.; Winer, B. L.; Wood, K. S.; Wood, M.; Yamazaki, R.; Yang, Zhaoyu; Zimmer, Stephan; show less...

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