Measurement of the Cosmic Ray e+ plus e- Spectrum from 20GeV to 1TeV with the Fermi Large Area Telescope
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Authors
Abdo, A.
Ackermann, M.
Ajello, M.
Atwood, W.
Axelsson, M.
Baldini, L.
Ballet, J.
Barbiellini, G.
Bastieri, D.
Battelino, M.
Baughman, B.
Bechtol, K.
Bellazzini, R.
Berenji, B.
Blandford, R.
Bloom, E.
Bogaert, G.
Bonamente, E.
Borgland, A.
Bregeon, J.
Brez, A.
Brigida, M.
Bruel, P.
Burnett, T.
Caliandro, G.
Cameron, R.
Caraveo, P.
Carlson, P.
Casandjian, J.
Cecchi, C.
Charles, E.
Chekhtman, A.
Cheung, C.
Chiang, J.
Ciprini, S.
Claus, R.
Cohen-Tanugi, J.
Cominsky, L.
Conrad, J.
Cutini, S.
Dermer, C.
de Angelis, A.
de Palma, F.
Digel, S.
Di Bernardo, G.
Do Couto e Silva, E.
Drell, P.
Dubois, R.
Dumora, D.
Edmonds, Y.
Farnier, C.
Favuzzi, C.
Focke, W.
Frailis, M.
Fukazawa, Y.
Funk, S.
Fusco, P.
Gaggero, D.
Gargano, F.
Gasparrini, D.
Gehrels, N.
Germani, S.
Giebels, B.
Giglietto, N.
Giordano, F.
Glanzman, T.
Godfrey, G.
Grasso, D.
Grenier, I.
Grondin, M.
Grove, J.
Guillemot, L.
Guiriec, S.
Hanabata, Y.
Harding, A.
Hartman, R.
Hayashida, M.
Hays, E.
Hughes, R.
Johannesson, G.
Johnson, A.
Johnson, R.
Johnson, W.
Kamae, T.
Katagiri, H.
Kataoka, J.
Kawai, N.
Kerr, M.
Knödlseder, J.
Kocevski, D.
Kuehn, F.
Kuss, M.
Lande, J.
Latronico, L.
Lemoine-Goumard, M.
Longo, F.
Loparco, F.
Lott, B.
Lovellette, M.
Lubrano, P.
Madejski, G.
Makeev, A.
Massai, M.
Mazziotta, M.
McConville, W.
McEnery, J.
Meurer, C.
Michelson, P.
Mitthumsiri, W.
Mizuno, T.
Moiseev, A.
Monte, C.
Monzani, M.
Moretti, E.
Morselli, A.
Moskalenko, I.
Murgia, S.
Nolan, P.
Norris, J.
Nuss, E.
Ohsugi, T.
Omodei, N.
Orlando, E.
Ormes, J.
Ozaki, M.
Paneque, D.
Panetta, J.
Parent, D.
Pelassa, V.
Pepe, M.
Pesce-Rollins, M.
Piron, F.
Pohl, M.
Porter, T.
Profumo, S.
Raino, S.
Rando, R.
Razzano, M.
Reimer, A.
Reimer, O.
Reposeur, T.
Ritz, S.
Rochester, L.
Rodriguez, A.
Romani, R.
Roth, M.
Ryde, F.
Sadrozinski, H.
Sanchez, D.
Sander, A.
Saz Parkinson, P.
Scargle, J.
Schalk, T.
Sellerholm, A.
Sgro, C.
Smith, D.
Smith, P.
Spandre, G.
Spinelli, P.
Starck, J.
Stephens, T.
Strickman, M.
Strong, A.
Suson, D.
Tajima, H.
Takahashi, H.
Takahashi, T.
Tanaka, T.
Thayer, J.
Thayer, J.
Thompson, D.
Tibaldo, L.
Tibolla, Omar
Torres, D.
Tosti, G.
Tramacere, A.
Uchiyama, Y.
Usher, T.
Van Etten, A.
Vasileiou, V.
Vilchez, N.
Vitale, V.
Waite, A.
Wallace, E.
Wang, P.
Winer, B.
Wood, K.
Ylinen, T.
Ziegler, M.
Date
2009Type
Journal Article
Metadata
Show full item recordCitation
Abdo, A. and Ackermann, M. and Ajello, M. and Atwood, W. and Axelsson, M. and Baldini, L. and Ballet, J. et al. 2009. Measurement of the Cosmic Ray e+ plus e- Spectrum from 20GeV to 1TeV with the Fermi Large Area Telescope. Physical Review Letters. 102 (18).
Source Title
Physical Review Letters
ISSN
Collection
Abstract
Designed as a high-sensitivity gamma-ray observatory, the Fermi Large Area Telescope is also an electron detector with a large acceptance exceeding 2m^2 sr at 300 GeV. Building on the gamma-ray analysis, we have developed an efficient electron detection strategy which provides sufficient background rejection for measurement of the steeply-falling electron spectrum up to 1 TeV. Our high precision data show that the electron spectrum falls with energy as E^(-3.0) and does not exhibit prominent spectral features. Interpretations in terms of a conventional diffusive model as well as a potential local extra component are briefly discussed.
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