Cosmic-ray electron-positron spectrum from 7 GeV to 2 TeV with the Fermi Large Area Telescope
Physical review. D/Physical review. D.2017Vol. 95(8)
Citations Over TimeTop 1% of 2017 papers
S. Abdollahi, M. Ackermann, M. Ajello, W. B. Atwood, L. Baldini, G. Barbiellini, D. Bastieri, R. Bellazzini, E. D. Bloom, R. Bonino, T. J. Brandt, J. Bregeon, P. Bruel, R. Buehler, R. A. Cameron, R. Caputo, M. Caragiulo, Daniel Castro, E. Cavazzuti, C. Cecchi, A. Chekhtman, S. Ciprini, J. Cohen-Tanugi, F. Costanza, A. Cuoco, S. Cutini, F. D’Ammando, F. de Palma, R. Desiante, S. W. Digel, Niccolò Di Lalla, Mattia Di Mauro, L. Di Venere, P. S. Drell, A. Drlica-Wagner, C. Favuzzi, W. B. Focke, S. Funk, P. Fusco, F. Gargano, D. Gasparrini, N. Giglietto, F. Giordano, M. Giroletti, D. Green, L. Guillemot, S. Guiriec, A. K. Harding, T. Jogler, G. Jóhannesson, T. Kamae, M. Kuss, G. La Mura, L. Latronico, F. Longo, F. Loparco, P. Lubrano, S. Maldera, D. Malyshev, Alberto Manfreda, M. N. Mazziotta, P. F. Michelson, N. Mirabal, W. Mitthumsiri, Tsunefumi Mizuno, A. A. Moiseev, M. E. Monzani, A. Morselli, I. V. Moskalenko, Michela Negro, E. Nuss, E. Orlando, D. Paneque, J. S. Perkins, M. Pesce-Rollins, F. Piron, G. Pivato, T. A. Porter, G. Principe, S. Rainò, R. Rando, M. Razzano, A. Reimer, O. Reimer, C. Sgrò, D. Simone, E. J. Siskind, F. Spada, G. Spandre, P. Spinelli, H. Tajima, J. B. Thayer, L. Tibaldo, D. F. Torres, E. Troja, M. Wood, Aaron Worley, G. Zaharijaš, S. Zimmer
Abstract
We present a measurement of the cosmic-ray $\mathrm{electron}+\mathrm{positron}$ spectrum between 7 GeV and 2 TeV performed with almost seven years of data collected with the Fermi Large Area Telescope. We find that the spectrum is well fit by a broken power law with a break energy at about 50 GeV. Above 50 GeV, the spectrum is well described by a single power law with a spectral index of $3.07\ifmmode\pm\else\textpm\fi{}0.02\phantom{\rule{0ex}{0ex}}(\mathrm{stat}+\mathrm{syst})\ifmmode\pm\else\textpm\fi{}0.04(\text{energy measurement})$. An exponential cutoff lower than 1.8 TeV is excluded at 95% CL.
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