Fermi LAT observations of cosmic-ray electrons from 7 GeV to 1 TeV

M. Ackermann, M. Ajello, W. B. Atwood, L. Baldini, J. Ballet, G. Barbiellini, D. Bastieri, B. M. Baughman, K. Bechtol, F. Bellardi, R. Bellazzini, F. Belli, B. Berenji, R. D. Blandford, E. D. Bloom, J. R. Bogart, E. Bonamente, A. W. Borgland, T. J. Brandt, J. BregeonA. Brez, M. Brigida, P. Bruel, R. Buehler, T. H. Burnett, G. Busetto, S. Buson, G. A. Caliandro, R. A. Cameron, P. A. Caraveo, P. Carlson, S. Carrigan, J. M. Casandjian, M. Ceccanti, C. Cecchi, Ö Çelik, E. Charles, A. Chekhtman, C. C. Cheung, J. Chiang, A. N. Cillis, S. Ciprini, R. Claus, J. Cohen-Tanugi, J. Conrad, R. Corbet, M. Deklotz, C. D. Dermer, A. De Angelis, F. De Palma, S. W. Digel, G. Di Bernardo, E. Do Couto E Silva, P. S. Drell, A. Drlica-Wagner, R. Dubois, D. Fabiani, C. Favuzzi, S. J. Fegan, P. Fortin, Y. Fukazawa, S. Funk, P. Fusco, D. Gaggero, F. Gargano, D. Gasparrini, N. Gehrels, S. Germani, N. Giglietto, P. Giommi, F. Giordano, M. Giroletti, T. Glanzman, G. Godfrey, D. Grasso, I. A. Grenier, M. H. Grondin, J. E. Grove, S. Guiriec, M. Gustafsson, D. Hadasch, A. K. Harding, M. Hayashida, E. Hays, D. Horan, R. E. Hughes, G. Jóhannesson, A. S. Johnson, R. P. Johnson, W. N. Johnson, T. Kamae, H. Katagiri, Jun Kataoka, M. Kerr, J. Knödlseder, M. Kuss, J. Lande, L. Latronico, M. Lemoine-Goumard, M. Llena Garde, F. Longo, F. Loparco, B. Lott, M. N. Lovellette, P. Lubrano, A. Makeev, M. N. Mazziotta, J. E. McEnery, J. Mehault, P. F. Michelson, M. Minuti, W. Mitthumsiri, T. Mizuno, A. A. Moiseev, C. Monte, M. E. Monzani, E. Moretti, A. Morselli, I. V. Moskalenko, S. Murgia, T. Nakamori, M. Naumann-Godo, P. L. Nolan, J. P. Norris, E. Nuss, T. Ohsugi, A. Okumura, N. Omodei, E. Orlando, J. F. Ormes, M. Ozaki, D. Paneque, J. H. Panetta, D. Parent, V. Pelassa, M. Pepe, M. Pesce-Rollins, V. Petrosian, M. Pinchera, F. Piron, T. A. Porter, S. Profumo, S. Rainò, R. Rando, E. Rapposelli, M. Razzano, A. Reimer, O. Reimer, T. Reposeur, J. Ripken, S. Ritz, L. S. Rochester, R. W. Romani, M. Roth, H. F W Sadrozinski, N. Saggini, D. Sanchez, A. Sander, C. Sgrò, E. J. Siskind, P. D. Smith, G. Spandre, P. Spinelli, Stawarz, T. E. Stephens, M. S. Strickman, A. W. Strong, D. J. Suson, H. Tajima, H. Takahashi, T. Takahashi, T. Tanaka, J. B. Thayer, J. G. Thayer, D. J. Thompson, L. Tibaldo, O. Tibolla, D. F. Torres, G. Tosti, A. Tramacere, M. Turri, Y. Uchiyama, T. L. Usher, J. Vandenbroucke, V. Vasileiou, N. Vilchez, V. Vitale, A. P. Waite, E. Wallace, P. Wang, B. L. Winer, K. S. Wood, Z. Yang, T. Ylinen, M. Ziegler

    Research output: Contribution to journalArticle

    341 Citations (Scopus)

    Abstract

    We present the results of our analysis of cosmic-ray electrons using about 8×106 electron candidates detected in the first 12 months on-orbit by the Fermi Large Area Telescope. This work extends our previously published cosmic-ray electron spectrum down to 7 GeV, giving a spectral range of approximately 2.5 decades up to 1 TeV. We describe in detail the analysis and its validation using beam-test and on-orbit data. In addition, we describe the spectrum measured via a subset of events selected for the best energy resolution as a cross-check on the measurement using the full event sample. Our electron spectrum can be described with a power law E-3.08±0.05 with no prominent spectral features within systematic uncertainties. Within the limits of our uncertainties, we can accommodate a slight spectral hardening at around 100 GeV and a slight softening above 500 GeV.

    Original languageEnglish
    Article number092004
    JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
    Volume82
    Issue number9
    DOIs
    Publication statusPublished - 2010 Nov 18

    Fingerprint

    cosmic rays
    electrons
    orbits
    hardening
    softening
    set theory
    telescopes
    energy

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics

    Cite this

    Ackermann, M., Ajello, M., Atwood, W. B., Baldini, L., Ballet, J., Barbiellini, G., ... Ziegler, M. (2010). Fermi LAT observations of cosmic-ray electrons from 7 GeV to 1 TeV. Physical Review D - Particles, Fields, Gravitation and Cosmology, 82(9), [092004]. https://doi.org/10.1103/PhysRevD.82.092004

    Fermi LAT observations of cosmic-ray electrons from 7 GeV to 1 TeV. / Ackermann, M.; Ajello, M.; Atwood, W. B.; Baldini, L.; Ballet, J.; Barbiellini, G.; Bastieri, D.; Baughman, B. M.; Bechtol, K.; Bellardi, F.; Bellazzini, R.; Belli, F.; Berenji, B.; Blandford, R. D.; Bloom, E. D.; Bogart, J. R.; Bonamente, E.; Borgland, A. W.; Brandt, T. J.; Bregeon, J.; Brez, A.; Brigida, M.; Bruel, P.; Buehler, R.; Burnett, T. H.; Busetto, G.; Buson, S.; Caliandro, G. A.; Cameron, R. A.; Caraveo, P. A.; Carlson, P.; Carrigan, S.; Casandjian, J. M.; Ceccanti, M.; Cecchi, C.; Çelik, Ö; Charles, E.; Chekhtman, A.; Cheung, C. C.; Chiang, J.; Cillis, A. N.; Ciprini, S.; Claus, R.; Cohen-Tanugi, J.; Conrad, J.; Corbet, R.; Deklotz, M.; Dermer, C. D.; De Angelis, A.; De Palma, F.; Digel, S. W.; Di Bernardo, G.; Do Couto E Silva, E.; Drell, P. S.; Drlica-Wagner, A.; Dubois, R.; Fabiani, D.; Favuzzi, C.; Fegan, S. J.; Fortin, P.; Fukazawa, Y.; Funk, S.; Fusco, P.; Gaggero, D.; Gargano, F.; Gasparrini, D.; Gehrels, N.; Germani, S.; Giglietto, N.; Giommi, P.; Giordano, F.; Giroletti, M.; Glanzman, T.; Godfrey, G.; Grasso, D.; Grenier, I. A.; Grondin, M. H.; Grove, J. E.; Guiriec, S.; Gustafsson, M.; Hadasch, D.; Harding, A. K.; Hayashida, M.; Hays, E.; Horan, D.; Hughes, R. E.; Jóhannesson, G.; Johnson, A. S.; Johnson, R. P.; Johnson, W. N.; Kamae, T.; Katagiri, H.; Kataoka, Jun; Kerr, M.; Knödlseder, J.; Kuss, M.; Lande, J.; Latronico, L.; Lemoine-Goumard, M.; Llena Garde, M.; Longo, F.; Loparco, F.; Lott, B.; Lovellette, M. N.; Lubrano, P.; Makeev, A.; Mazziotta, M. N.; McEnery, J. E.; Mehault, J.; Michelson, P. F.; Minuti, M.; Mitthumsiri, W.; Mizuno, T.; Moiseev, A. A.; Monte, C.; Monzani, M. E.; Moretti, E.; Morselli, A.; Moskalenko, I. V.; Murgia, S.; Nakamori, T.; Naumann-Godo, M.; Nolan, P. L.; Norris, J. P.; Nuss, E.; Ohsugi, T.; Okumura, A.; Omodei, N.; Orlando, E.; Ormes, J. F.; Ozaki, M.; Paneque, D.; Panetta, J. H.; Parent, D.; Pelassa, V.; Pepe, M.; Pesce-Rollins, M.; Petrosian, V.; Pinchera, M.; Piron, F.; Porter, T. A.; Profumo, S.; Rainò, S.; Rando, R.; Rapposelli, E.; Razzano, M.; Reimer, A.; Reimer, O.; Reposeur, T.; Ripken, J.; Ritz, S.; Rochester, L. S.; Romani, R. W.; Roth, M.; Sadrozinski, H. F W; Saggini, N.; Sanchez, D.; Sander, A.; Sgrò, C.; Siskind, E. J.; Smith, P. D.; Spandre, G.; Spinelli, P.; Stawarz; Stephens, T. E.; Strickman, M. S.; Strong, A. W.; Suson, D. J.; Tajima, H.; Takahashi, H.; Takahashi, T.; Tanaka, T.; Thayer, J. B.; Thayer, J. G.; Thompson, D. J.; Tibaldo, L.; Tibolla, O.; Torres, D. F.; Tosti, G.; Tramacere, A.; Turri, M.; Uchiyama, Y.; Usher, T. L.; Vandenbroucke, J.; Vasileiou, V.; Vilchez, N.; Vitale, V.; Waite, A. P.; Wallace, E.; Wang, P.; Winer, B. L.; Wood, K. S.; Yang, Z.; Ylinen, T.; Ziegler, M.

    In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 82, No. 9, 092004, 18.11.2010.

    Research output: Contribution to journalArticle

    Ackermann, M, Ajello, M, Atwood, WB, Baldini, L, Ballet, J, Barbiellini, G, Bastieri, D, Baughman, BM, Bechtol, K, Bellardi, F, Bellazzini, R, Belli, F, Berenji, B, Blandford, RD, Bloom, ED, Bogart, JR, Bonamente, E, Borgland, AW, Brandt, TJ, Bregeon, J, Brez, A, Brigida, M, Bruel, P, Buehler, R, Burnett, TH, Busetto, G, Buson, S, Caliandro, GA, Cameron, RA, Caraveo, PA, Carlson, P, Carrigan, S, Casandjian, JM, Ceccanti, M, Cecchi, C, Çelik, Ö, Charles, E, Chekhtman, A, Cheung, CC, Chiang, J, Cillis, AN, Ciprini, S, Claus, R, Cohen-Tanugi, J, Conrad, J, Corbet, R, Deklotz, M, Dermer, CD, De Angelis, A, De Palma, F, Digel, SW, Di Bernardo, G, Do Couto E Silva, E, Drell, PS, Drlica-Wagner, A, Dubois, R, Fabiani, D, Favuzzi, C, Fegan, SJ, Fortin, P, Fukazawa, Y, Funk, S, Fusco, P, Gaggero, D, Gargano, F, Gasparrini, D, Gehrels, N, Germani, S, Giglietto, N, Giommi, P, Giordano, F, Giroletti, M, Glanzman, T, Godfrey, G, Grasso, D, Grenier, IA, Grondin, MH, Grove, JE, Guiriec, S, Gustafsson, M, Hadasch, D, Harding, AK, Hayashida, M, Hays, E, Horan, D, Hughes, RE, Jóhannesson, G, Johnson, AS, Johnson, RP, Johnson, WN, Kamae, T, Katagiri, H, Kataoka, J, Kerr, M, Knödlseder, J, Kuss, M, Lande, J, Latronico, L, Lemoine-Goumard, M, Llena Garde, M, Longo, F, Loparco, F, Lott, B, Lovellette, MN, Lubrano, P, Makeev, A, Mazziotta, MN, McEnery, JE, Mehault, J, Michelson, PF, Minuti, M, Mitthumsiri, W, Mizuno, T, Moiseev, AA, Monte, C, Monzani, ME, Moretti, E, Morselli, A, Moskalenko, IV, Murgia, S, Nakamori, T, Naumann-Godo, M, Nolan, PL, Norris, JP, Nuss, E, Ohsugi, T, Okumura, A, Omodei, N, Orlando, E, Ormes, JF, Ozaki, M, Paneque, D, Panetta, JH, Parent, D, Pelassa, V, Pepe, M, Pesce-Rollins, M, Petrosian, V, Pinchera, M, Piron, F, Porter, TA, Profumo, S, Rainò, S, Rando, R, Rapposelli, E, Razzano, M, Reimer, A, Reimer, O, Reposeur, T, Ripken, J, Ritz, S, Rochester, LS, Romani, RW, Roth, M, Sadrozinski, HFW, Saggini, N, Sanchez, D, Sander, A, Sgrò, C, Siskind, EJ, Smith, PD, Spandre, G, Spinelli, P, Stawarz, Stephens, TE, Strickman, MS, Strong, AW, Suson, DJ, Tajima, H, Takahashi, H, Takahashi, T, Tanaka, T, Thayer, JB, Thayer, JG, Thompson, DJ, Tibaldo, L, Tibolla, O, Torres, DF, Tosti, G, Tramacere, A, Turri, M, Uchiyama, Y, Usher, TL, Vandenbroucke, J, Vasileiou, V, Vilchez, N, Vitale, V, Waite, AP, Wallace, E, Wang, P, Winer, BL, Wood, KS, Yang, Z, Ylinen, T & Ziegler, M 2010, 'Fermi LAT observations of cosmic-ray electrons from 7 GeV to 1 TeV', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 82, no. 9, 092004. https://doi.org/10.1103/PhysRevD.82.092004
    Ackermann, M. ; Ajello, M. ; Atwood, W. B. ; Baldini, L. ; Ballet, J. ; Barbiellini, G. ; Bastieri, D. ; Baughman, B. M. ; Bechtol, K. ; Bellardi, F. ; Bellazzini, R. ; Belli, F. ; Berenji, B. ; Blandford, R. D. ; Bloom, E. D. ; Bogart, J. R. ; Bonamente, E. ; Borgland, A. W. ; Brandt, T. J. ; Bregeon, J. ; Brez, A. ; Brigida, M. ; Bruel, P. ; Buehler, R. ; Burnett, T. H. ; Busetto, G. ; Buson, S. ; Caliandro, G. A. ; Cameron, R. A. ; Caraveo, P. A. ; Carlson, P. ; Carrigan, S. ; Casandjian, J. M. ; Ceccanti, M. ; Cecchi, C. ; Çelik, Ö ; Charles, E. ; Chekhtman, A. ; Cheung, C. C. ; Chiang, J. ; Cillis, A. N. ; Ciprini, S. ; Claus, R. ; Cohen-Tanugi, J. ; Conrad, J. ; Corbet, R. ; Deklotz, M. ; Dermer, C. D. ; De Angelis, A. ; De Palma, F. ; Digel, S. W. ; Di Bernardo, G. ; Do Couto E Silva, E. ; Drell, P. S. ; Drlica-Wagner, A. ; Dubois, R. ; Fabiani, D. ; Favuzzi, C. ; Fegan, S. J. ; Fortin, P. ; Fukazawa, Y. ; Funk, S. ; Fusco, P. ; Gaggero, D. ; Gargano, F. ; Gasparrini, D. ; Gehrels, N. ; Germani, S. ; Giglietto, N. ; Giommi, P. ; Giordano, F. ; Giroletti, M. ; Glanzman, T. ; Godfrey, G. ; Grasso, D. ; Grenier, I. A. ; Grondin, M. H. ; Grove, J. E. ; Guiriec, S. ; Gustafsson, M. ; Hadasch, D. ; Harding, A. K. ; Hayashida, M. ; Hays, E. ; Horan, D. ; Hughes, R. E. ; Jóhannesson, G. ; Johnson, A. S. ; Johnson, R. P. ; Johnson, W. N. ; Kamae, T. ; Katagiri, H. ; Kataoka, Jun ; Kerr, M. ; Knödlseder, J. ; Kuss, M. ; Lande, J. ; Latronico, L. ; Lemoine-Goumard, M. ; Llena Garde, M. ; Longo, F. ; Loparco, F. ; Lott, B. ; Lovellette, M. N. ; Lubrano, P. ; Makeev, A. ; Mazziotta, M. N. ; McEnery, J. E. ; Mehault, J. ; Michelson, P. F. ; Minuti, M. ; Mitthumsiri, W. ; Mizuno, T. ; Moiseev, A. A. ; Monte, C. ; Monzani, M. E. ; Moretti, E. ; Morselli, A. ; Moskalenko, I. V. ; Murgia, S. ; Nakamori, T. ; Naumann-Godo, M. ; Nolan, P. L. ; Norris, J. P. ; Nuss, E. ; Ohsugi, T. ; Okumura, A. ; Omodei, N. ; Orlando, E. ; Ormes, J. F. ; Ozaki, M. ; Paneque, D. ; Panetta, J. H. ; Parent, D. ; Pelassa, V. ; Pepe, M. ; Pesce-Rollins, M. ; Petrosian, V. ; Pinchera, M. ; Piron, F. ; Porter, T. A. ; Profumo, S. ; Rainò, S. ; Rando, R. ; Rapposelli, E. ; Razzano, M. ; Reimer, A. ; Reimer, O. ; Reposeur, T. ; Ripken, J. ; Ritz, S. ; Rochester, L. S. ; Romani, R. W. ; Roth, M. ; Sadrozinski, H. F W ; Saggini, N. ; Sanchez, D. ; Sander, A. ; Sgrò, C. ; Siskind, E. J. ; Smith, P. D. ; Spandre, G. ; Spinelli, P. ; Stawarz ; Stephens, T. E. ; Strickman, M. S. ; Strong, A. W. ; Suson, D. J. ; Tajima, H. ; Takahashi, H. ; Takahashi, T. ; Tanaka, T. ; Thayer, J. B. ; Thayer, J. G. ; Thompson, D. J. ; Tibaldo, L. ; Tibolla, O. ; Torres, D. F. ; Tosti, G. ; Tramacere, A. ; Turri, M. ; Uchiyama, Y. ; Usher, T. L. ; Vandenbroucke, J. ; Vasileiou, V. ; Vilchez, N. ; Vitale, V. ; Waite, A. P. ; Wallace, E. ; Wang, P. ; Winer, B. L. ; Wood, K. S. ; Yang, Z. ; Ylinen, T. ; Ziegler, M. / Fermi LAT observations of cosmic-ray electrons from 7 GeV to 1 TeV. In: Physical Review D - Particles, Fields, Gravitation and Cosmology. 2010 ; Vol. 82, No. 9.
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    title = "Fermi LAT observations of cosmic-ray electrons from 7 GeV to 1 TeV",
    abstract = "We present the results of our analysis of cosmic-ray electrons using about 8×106 electron candidates detected in the first 12 months on-orbit by the Fermi Large Area Telescope. This work extends our previously published cosmic-ray electron spectrum down to 7 GeV, giving a spectral range of approximately 2.5 decades up to 1 TeV. We describe in detail the analysis and its validation using beam-test and on-orbit data. In addition, we describe the spectrum measured via a subset of events selected for the best energy resolution as a cross-check on the measurement using the full event sample. Our electron spectrum can be described with a power law E-3.08±0.05 with no prominent spectral features within systematic uncertainties. Within the limits of our uncertainties, we can accommodate a slight spectral hardening at around 100 GeV and a slight softening above 500 GeV.",
    author = "M. Ackermann and M. Ajello and Atwood, {W. B.} and L. Baldini and J. Ballet and G. Barbiellini and D. Bastieri and Baughman, {B. M.} and K. Bechtol and F. Bellardi and R. Bellazzini and F. Belli and B. Berenji and Blandford, {R. D.} and Bloom, {E. D.} and Bogart, {J. R.} and E. Bonamente and Borgland, {A. W.} and Brandt, {T. J.} and J. Bregeon and A. Brez and M. Brigida and P. Bruel and R. Buehler and Burnett, {T. H.} and G. Busetto and S. Buson and Caliandro, {G. A.} and Cameron, {R. A.} and Caraveo, {P. A.} and P. Carlson and S. Carrigan and Casandjian, {J. M.} and M. Ceccanti and C. Cecchi and {\"O} {\cC}elik and E. Charles and A. Chekhtman and Cheung, {C. C.} and J. Chiang and Cillis, {A. N.} and S. Ciprini and R. Claus and J. Cohen-Tanugi and J. Conrad and R. Corbet and M. Deklotz and Dermer, {C. D.} and {De Angelis}, A. and {De Palma}, F. and Digel, {S. W.} and {Di Bernardo}, G. and {Do Couto E Silva}, E. and Drell, {P. S.} and A. Drlica-Wagner and R. Dubois and D. Fabiani and C. Favuzzi and Fegan, {S. J.} and P. Fortin and Y. Fukazawa and S. Funk and P. Fusco and D. Gaggero and F. Gargano and D. Gasparrini and N. Gehrels and S. Germani and N. Giglietto and P. Giommi and F. Giordano and M. Giroletti and T. Glanzman and G. Godfrey and D. Grasso and Grenier, {I. A.} and Grondin, {M. H.} and Grove, {J. E.} and S. Guiriec and M. Gustafsson and D. Hadasch and Harding, {A. K.} and M. Hayashida and E. Hays and D. Horan and Hughes, {R. E.} and G. J{\'o}hannesson and Johnson, {A. S.} and Johnson, {R. P.} and Johnson, {W. N.} and T. Kamae and H. Katagiri and Jun Kataoka and M. Kerr and J. Kn{\"o}dlseder and M. Kuss and J. Lande and L. Latronico and M. Lemoine-Goumard and {Llena Garde}, M. and F. Longo and F. Loparco and B. Lott and Lovellette, {M. N.} and P. Lubrano and A. Makeev and Mazziotta, {M. N.} and McEnery, {J. E.} and J. Mehault and Michelson, {P. F.} and M. Minuti and W. Mitthumsiri and T. Mizuno and Moiseev, {A. A.} and C. Monte and Monzani, {M. E.} and E. Moretti and A. Morselli and Moskalenko, {I. V.} and S. Murgia and T. Nakamori and M. Naumann-Godo and Nolan, {P. L.} and Norris, {J. P.} and E. Nuss and T. Ohsugi and A. Okumura and N. Omodei and E. Orlando and Ormes, {J. F.} and M. Ozaki and D. Paneque and Panetta, {J. H.} and D. Parent and V. Pelassa and M. Pepe and M. Pesce-Rollins and V. Petrosian and M. Pinchera and F. Piron and Porter, {T. A.} and S. Profumo and S. Rain{\`o} and R. Rando and E. Rapposelli and M. Razzano and A. Reimer and O. Reimer and T. Reposeur and J. Ripken and S. Ritz and Rochester, {L. S.} and Romani, {R. W.} and M. Roth and Sadrozinski, {H. F W} and N. Saggini and D. Sanchez and A. Sander and C. Sgr{\`o} and Siskind, {E. J.} and Smith, {P. D.} and G. Spandre and P. Spinelli and Stawarz and Stephens, {T. E.} and Strickman, {M. S.} and Strong, {A. W.} and Suson, {D. J.} and H. Tajima and H. Takahashi and T. Takahashi and T. Tanaka and Thayer, {J. B.} and Thayer, {J. G.} and Thompson, {D. J.} and L. Tibaldo and O. Tibolla and Torres, {D. F.} and G. Tosti and A. Tramacere and M. Turri and Y. Uchiyama and Usher, {T. L.} and J. Vandenbroucke and V. Vasileiou and N. Vilchez and V. Vitale and Waite, {A. P.} and E. Wallace and P. Wang and Winer, {B. L.} and Wood, {K. S.} and Z. Yang and T. Ylinen and M. Ziegler",
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    TY - JOUR

    T1 - Fermi LAT observations of cosmic-ray electrons from 7 GeV to 1 TeV

    AU - Ackermann, M.

    AU - Ajello, M.

    AU - Atwood, W. B.

    AU - Baldini, L.

    AU - Ballet, J.

    AU - Barbiellini, G.

    AU - Bastieri, D.

    AU - Baughman, B. M.

    AU - Bechtol, K.

    AU - Bellardi, F.

    AU - Bellazzini, R.

    AU - Belli, F.

    AU - Berenji, B.

    AU - Blandford, R. D.

    AU - Bloom, E. D.

    AU - Bogart, J. R.

    AU - Bonamente, E.

    AU - Borgland, A. W.

    AU - Brandt, T. J.

    AU - Bregeon, J.

    AU - Brez, A.

    AU - Brigida, M.

    AU - Bruel, P.

    AU - Buehler, R.

    AU - Burnett, T. H.

    AU - Busetto, G.

    AU - Buson, S.

    AU - Caliandro, G. A.

    AU - Cameron, R. A.

    AU - Caraveo, P. A.

    AU - Carlson, P.

    AU - Carrigan, S.

    AU - Casandjian, J. M.

    AU - Ceccanti, M.

    AU - Cecchi, C.

    AU - Çelik, Ö

    AU - Charles, E.

    AU - Chekhtman, A.

    AU - Cheung, C. C.

    AU - Chiang, J.

    AU - Cillis, A. N.

    AU - Ciprini, S.

    AU - Claus, R.

    AU - Cohen-Tanugi, J.

    AU - Conrad, J.

    AU - Corbet, R.

    AU - Deklotz, M.

    AU - Dermer, C. D.

    AU - De Angelis, A.

    AU - De Palma, F.

    AU - Digel, S. W.

    AU - Di Bernardo, G.

    AU - Do Couto E Silva, E.

    AU - Drell, P. S.

    AU - Drlica-Wagner, A.

    AU - Dubois, R.

    AU - Fabiani, D.

    AU - Favuzzi, C.

    AU - Fegan, S. J.

    AU - Fortin, P.

    AU - Fukazawa, Y.

    AU - Funk, S.

    AU - Fusco, P.

    AU - Gaggero, D.

    AU - Gargano, F.

    AU - Gasparrini, D.

    AU - Gehrels, N.

    AU - Germani, S.

    AU - Giglietto, N.

    AU - Giommi, P.

    AU - Giordano, F.

    AU - Giroletti, M.

    AU - Glanzman, T.

    AU - Godfrey, G.

    AU - Grasso, D.

    AU - Grenier, I. A.

    AU - Grondin, M. H.

    AU - Grove, J. E.

    AU - Guiriec, S.

    AU - Gustafsson, M.

    AU - Hadasch, D.

    AU - Harding, A. K.

    AU - Hayashida, M.

    AU - Hays, E.

    AU - Horan, D.

    AU - Hughes, R. E.

    AU - Jóhannesson, G.

    AU - Johnson, A. S.

    AU - Johnson, R. P.

    AU - Johnson, W. N.

    AU - Kamae, T.

    AU - Katagiri, H.

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    PY - 2010/11/18

    Y1 - 2010/11/18

    N2 - We present the results of our analysis of cosmic-ray electrons using about 8×106 electron candidates detected in the first 12 months on-orbit by the Fermi Large Area Telescope. This work extends our previously published cosmic-ray electron spectrum down to 7 GeV, giving a spectral range of approximately 2.5 decades up to 1 TeV. We describe in detail the analysis and its validation using beam-test and on-orbit data. In addition, we describe the spectrum measured via a subset of events selected for the best energy resolution as a cross-check on the measurement using the full event sample. Our electron spectrum can be described with a power law E-3.08±0.05 with no prominent spectral features within systematic uncertainties. Within the limits of our uncertainties, we can accommodate a slight spectral hardening at around 100 GeV and a slight softening above 500 GeV.

    AB - We present the results of our analysis of cosmic-ray electrons using about 8×106 electron candidates detected in the first 12 months on-orbit by the Fermi Large Area Telescope. This work extends our previously published cosmic-ray electron spectrum down to 7 GeV, giving a spectral range of approximately 2.5 decades up to 1 TeV. We describe in detail the analysis and its validation using beam-test and on-orbit data. In addition, we describe the spectrum measured via a subset of events selected for the best energy resolution as a cross-check on the measurement using the full event sample. Our electron spectrum can be described with a power law E-3.08±0.05 with no prominent spectral features within systematic uncertainties. Within the limits of our uncertainties, we can accommodate a slight spectral hardening at around 100 GeV and a slight softening above 500 GeV.

    UR - http://www.scopus.com/inward/record.url?scp=78651335208&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=78651335208&partnerID=8YFLogxK

    U2 - 10.1103/PhysRevD.82.092004

    DO - 10.1103/PhysRevD.82.092004

    M3 - Article

    AN - SCOPUS:78651335208

    VL - 82

    JO - Physical review D: Particles and fields

    JF - Physical review D: Particles and fields

    SN - 0556-2821

    IS - 9

    M1 - 092004

    ER -