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Detection of the Characteristic Pion-Decay Signature in Supernova Remnants
-
- Ackermann, M. (author)
- Deutsch Elektronen Synchrotron DESY
- Ajello, M. (author)
- Allafort, A. (author)
- show more...
- 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)
- 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)
- 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)
- 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)
- show less...
- (creator_code:org_t)
- 2013-02-14
- 2013
- English.
- In: Science. - : American Association for the Advancement of Science (AAAS). - 0036-8075 .- 1095-9203. ; 339:6121, s. 807-811
- Journal article (peer-reviewed)
Abstract
Subject headings
Close
- 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
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Keyword
- gamma-ray emission
Publication and Content Type
- ref (subject category)
- art (subject category)
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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.
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- Charles, E.
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- Chaves, R. C. G.
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- 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.
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- Funk, S.
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- 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.
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- Harding, A. K.
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- Hays, E.
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- Johnson, A. S.
- Kamae, T.
- Kataoka, J.
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- Kuss, M.
- Lande, J.
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- Madejski, G. M.
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- 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.
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- 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.
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- Tibaldo, L.
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- About the subject
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- NATURAL SCIENCES
- NATURAL SCIENCES
- and Physical Science ...
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- Science
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- Stockholm University
- Royal Institute of Technology
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