DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Cosmic-ray electron-positron spectrum from 7 GeV to 2 TeV with the Fermi Large Area Telescope

Abstract

We present a measurement of the cosmic-ray electron+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±0.02(stat+syst)±0.04(energy measurement). An exponential cutoff lower than 1.8 TeV is excluded at 95% CL.

Authors:
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; more »; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; « less
Publication Date:
Research Org.:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP)
Contributing Org.:
The Fermi-LAT Collaboration
OSTI Identifier:
1355733
Alternate Identifier(s):
OSTI ID: 1352715; OSTI ID: 1365578
Report Number(s):
arXiv:1704.07195; FERMILAB-PUB-17-188-AE
Journal ID: ISSN 2470-0010; PRVDAQ
Grant/Contract Number:  
TRG5880173; RTA5980003; AC02-76SF00515; AC02-07CH11359
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 95; Journal Issue: 8; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS

Citation Formats

Abdollahi, S., Ackermann, M., Ajello, M., Atwood, W. B., Baldini, L., Barbiellini, G., Bastieri, D., Bellazzini, R., Bloom, E. D., Bonino, R., Brandt, T. J., Bregeon, J., Bruel, P., Buehler, R., Cameron, R. A., Caputo, R., Caragiulo, M., Castro, D., Cavazzuti, E., Cecchi, C., Chekhtman, A., Ciprini, S., Cohen-Tanugi, J., Costanza, F., Cuoco, A., Cutini, S., D’Ammando, F., de Palma, F., Desiante, R., Digel, S. W., Di Lalla, N., Di Mauro, M., Di Venere, L., Drell, P. S., Drlica-Wagner, A., Favuzzi, C., Focke, W. B., Funk, S., Fusco, P., Gargano, F., Gasparrini, D., Giglietto, N., Giordano, F., Giroletti, M., Green, D., Guillemot, L., Guiriec, S., Harding, A. K., Jogler, T., Jóhannesson, G., Kamae, T., Kuss, M., La Mura, G., Latronico, L., Longo, F., Loparco, F., Lubrano, P., Maldera, S., Malyshev, D., Manfreda, A., Mazziotta, M. N., Michelson, P. F., Mirabal, N., Mitthumsiri, W., Mizuno, T., Moiseev, A. A., Monzani, M. E., Morselli, A., Moskalenko, I. V., Negro, M., Nuss, E., Orlando, E., Paneque, D., Perkins, J. S., Pesce-Rollins, M., Piron, F., Pivato, G., Porter, T. A., Principe, G., Rainò, S., Rando, R., Razzano, M., Reimer, A., Reimer, O., Sgrò, C., Simone, D., Siskind, E. J., Spada, F., Spandre, G., Spinelli, P., Tajima, H., Thayer, J. B., Tibaldo, L., Torres, D. F., Troja, E., Wood, M., Worley, A., Zaharijas, G., and Zimmer, S. Cosmic-ray electron-positron spectrum from 7 GeV to 2 TeV with the Fermi Large Area Telescope. United States: N. p., 2017. Web. doi:10.1103/PhysRevD.95.082007.
Abdollahi, S., Ackermann, M., Ajello, M., Atwood, W. B., Baldini, L., Barbiellini, G., Bastieri, D., Bellazzini, R., Bloom, E. D., Bonino, R., Brandt, T. J., Bregeon, J., Bruel, P., Buehler, R., Cameron, R. A., Caputo, R., Caragiulo, M., Castro, D., Cavazzuti, E., Cecchi, C., Chekhtman, A., Ciprini, S., Cohen-Tanugi, J., Costanza, F., Cuoco, A., Cutini, S., D’Ammando, F., de Palma, F., Desiante, R., Digel, S. W., Di Lalla, N., Di Mauro, M., Di Venere, L., Drell, P. S., Drlica-Wagner, A., Favuzzi, C., Focke, W. B., Funk, S., Fusco, P., Gargano, F., Gasparrini, D., Giglietto, N., Giordano, F., Giroletti, M., Green, D., Guillemot, L., Guiriec, S., Harding, A. K., Jogler, T., Jóhannesson, G., Kamae, T., Kuss, M., La Mura, G., Latronico, L., Longo, F., Loparco, F., Lubrano, P., Maldera, S., Malyshev, D., Manfreda, A., Mazziotta, M. N., Michelson, P. F., Mirabal, N., Mitthumsiri, W., Mizuno, T., Moiseev, A. A., Monzani, M. E., Morselli, A., Moskalenko, I. V., Negro, M., Nuss, E., Orlando, E., Paneque, D., Perkins, J. S., Pesce-Rollins, M., Piron, F., Pivato, G., Porter, T. A., Principe, G., Rainò, S., Rando, R., Razzano, M., Reimer, A., Reimer, O., Sgrò, C., Simone, D., Siskind, E. J., Spada, F., Spandre, G., Spinelli, P., Tajima, H., Thayer, J. B., Tibaldo, L., Torres, D. F., Troja, E., Wood, M., Worley, A., Zaharijas, G., & Zimmer, S. Cosmic-ray electron-positron spectrum from 7 GeV to 2 TeV with the Fermi Large Area Telescope. United States. https://doi.org/10.1103/PhysRevD.95.082007
Abdollahi, S., Ackermann, M., Ajello, M., Atwood, W. B., Baldini, L., Barbiellini, G., Bastieri, D., Bellazzini, R., Bloom, E. D., Bonino, R., Brandt, T. J., Bregeon, J., Bruel, P., Buehler, R., Cameron, R. A., Caputo, R., Caragiulo, M., Castro, D., Cavazzuti, E., Cecchi, C., Chekhtman, A., Ciprini, S., Cohen-Tanugi, J., Costanza, F., Cuoco, A., Cutini, S., D’Ammando, F., de Palma, F., Desiante, R., Digel, S. W., Di Lalla, N., Di Mauro, M., Di Venere, L., Drell, P. S., Drlica-Wagner, A., Favuzzi, C., Focke, W. B., Funk, S., Fusco, P., Gargano, F., Gasparrini, D., Giglietto, N., Giordano, F., Giroletti, M., Green, D., Guillemot, L., Guiriec, S., Harding, A. K., Jogler, T., Jóhannesson, G., Kamae, T., Kuss, M., La Mura, G., Latronico, L., Longo, F., Loparco, F., Lubrano, P., Maldera, S., Malyshev, D., Manfreda, A., Mazziotta, M. N., Michelson, P. F., Mirabal, N., Mitthumsiri, W., Mizuno, T., Moiseev, A. A., Monzani, M. E., Morselli, A., Moskalenko, I. V., Negro, M., Nuss, E., Orlando, E., Paneque, D., Perkins, J. S., Pesce-Rollins, M., Piron, F., Pivato, G., Porter, T. A., Principe, G., Rainò, S., Rando, R., Razzano, M., Reimer, A., Reimer, O., Sgrò, C., Simone, D., Siskind, E. J., Spada, F., Spandre, G., Spinelli, P., Tajima, H., Thayer, J. B., Tibaldo, L., Torres, D. F., Troja, E., Wood, M., Worley, A., Zaharijas, G., and Zimmer, S. Sat . "Cosmic-ray electron-positron spectrum from 7 GeV to 2 TeV with the Fermi Large Area Telescope". United States. https://doi.org/10.1103/PhysRevD.95.082007. https://www.osti.gov/servlets/purl/1355733.
@article{osti_1355733,
title = {Cosmic-ray electron-positron spectrum from 7 GeV to 2 TeV with the Fermi Large Area Telescope},
author = {Abdollahi, S. and Ackermann, M. and Ajello, M. and Atwood, W. B. and Baldini, L. and Barbiellini, G. and Bastieri, D. and Bellazzini, R. and Bloom, E. D. and Bonino, R. and Brandt, T. J. and Bregeon, J. and Bruel, P. and Buehler, R. and Cameron, R. A. and Caputo, R. and Caragiulo, M. and Castro, D. and Cavazzuti, E. and Cecchi, C. and Chekhtman, A. and Ciprini, S. and Cohen-Tanugi, J. and Costanza, F. and Cuoco, A. and Cutini, S. and D’Ammando, F. and de Palma, F. and Desiante, R. and Digel, S. W. and Di Lalla, N. and Di Mauro, M. and Di Venere, L. and Drell, P. S. and Drlica-Wagner, A. and Favuzzi, C. and Focke, W. B. and Funk, S. and Fusco, P. and Gargano, F. and Gasparrini, D. and Giglietto, N. and Giordano, F. and Giroletti, M. and Green, D. and Guillemot, L. and Guiriec, S. and Harding, A. K. and Jogler, T. and Jóhannesson, G. and Kamae, T. and Kuss, M. and La Mura, G. and Latronico, L. and Longo, F. and Loparco, F. and Lubrano, P. and Maldera, S. and Malyshev, D. and Manfreda, A. and Mazziotta, M. N. and Michelson, P. F. and Mirabal, N. and Mitthumsiri, W. and Mizuno, T. and Moiseev, A. A. and Monzani, M. E. and Morselli, A. and Moskalenko, I. V. and Negro, M. and Nuss, E. and Orlando, E. and Paneque, D. and Perkins, J. S. and Pesce-Rollins, M. and Piron, F. and Pivato, G. and Porter, T. A. and Principe, G. and Rainò, S. and Rando, R. and Razzano, M. and Reimer, A. and Reimer, O. and Sgrò, C. and Simone, D. and Siskind, E. J. and Spada, F. and Spandre, G. and Spinelli, P. and Tajima, H. and Thayer, J. B. and Tibaldo, L. and Torres, D. F. and Troja, E. and Wood, M. and Worley, A. and Zaharijas, G. and Zimmer, S.},
abstractNote = {We present a measurement of the cosmic-ray electron+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±0.02(stat+syst)±0.04(energy measurement). An exponential cutoff lower than 1.8 TeV is excluded at 95% CL.},
doi = {10.1103/PhysRevD.95.082007},
journal = {Physical Review D},
number = 8,
volume = 95,
place = {United States},
year = {Sat Apr 15 00:00:00 EDT 2017},
month = {Sat Apr 15 00:00:00 EDT 2017}
}

Journal Article:

Citation Metrics:
Cited by: 144 works
Citation information provided by
Web of Science

Save / Share:

Works referenced in this record:

An anomalous positron abundance in cosmic rays with energies 1.5–100 GeV
journal, April 2009

  • Adriani, O.; Barbarino, G. C.; Bazilevskaya, G. A.
  • Nature, Vol. 458, Issue 7238
  • DOI: 10.1038/nature07942

A review of geomagnetic cutoff rigidities for earth-orbiting spacecraft
journal, January 2005


THE LARGE AREA TELESCOPE ON THE FERMI GAMMA-RAY SPACE TELESCOPE MISSION
journal, May 2009


Origin of the Positron Excess in Cosmic Rays
journal, July 2009


Energy Spectrum of Cosmic-Ray Electrons at TeV Energies
journal, December 2008


Observations of high energy primary electrons and their astrophysical significance
journal, January 1997


Dark Matter Interpretation of Recent Electron and Positron Data
journal, July 2009


CALET on the ISS: a high energy astroparticle physics experiment
journal, May 2016


International Geomagnetic Reference Field: the eleventh generation: IGRF-11
journal, October 2010


Monte Carlo calculation of photon-initiated electromagnetic showers in lead glass
journal, October 1975


Recent Developments and Validation of Geant4 Hadronic Physics
journal, December 2012


Measurement of Separate Cosmic-Ray Electron and Positron Spectra with the Fermi Large Area Telescope
journal, January 2012


Pulsars and Very High-Energy Cosmic-Ray Electrons
journal, November 1970


Emulsion chamber observations of primary cosmic-ray electrons in the energy range 30-1000 GeV
journal, May 1980

  • Nishimura, J.; Fujii, M.; Taira, T.
  • The Astrophysical Journal, Vol. 238
  • DOI: 10.1086/157997

Model-independent implications of the , cosmic ray spectra on properties of Dark Matter
journal, May 2009


High energy positrons from annihilating dark matter
journal, December 2009


In-flight measurement of the absolute energy scale of the Fermi Large Area Telescope
journal, January 2012


Searches for cosmic-ray electron anisotropies with the Fermi Large Area Telescope
journal, November 2010


Interpretation of AMS-02 electrons and positrons data
journal, April 2014


Gamma rays, electrons and positrons up to 3 TeV with the Fermi Gamma-ray Space Telescope
journal, December 2012


Fermi LAT observations of cosmic-ray electrons from 7 GeV to 1 TeV
journal, November 2010


Geant4—a simulation toolkit
journal, July 2003

  • Agostinelli, S.; Allison, J.; Amako, K.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 506, Issue 3
  • DOI: 10.1016/S0168-9002(03)01368-8

Cosmic‐Ray Background Flux Model Based on a Gamma‐Ray Large Area Space Telescope Balloon Flight Engineering Model
journal, October 2004

  • Mizuno, T.; Kamae, T.; Godfrey, G.
  • The Astrophysical Journal, Vol. 614, Issue 2
  • DOI: 10.1086/423801

Where to stick your data points: The treatment of measurements within wide bins
journal, February 1995

  • Lafferty, G. D.; Wyatt, T. R.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 355, Issue 2-3
  • DOI: 10.1016/0168-9002(94)01112-5

The Most Likely Sources of High‐Energy Cosmic‐Ray Electrons in Supernova Remnants
journal, January 2004

  • Kobayashi, T.; Komori, Y.; Yoshida, K.
  • The Astrophysical Journal, Vol. 601, Issue 1
  • DOI: 10.1086/380431

Probing the ATIC peak in the cosmic-ray electron spectrum with H.E.S.S.
journal, October 2009


Search for Cosmic-Ray Electron and Positron Anisotropies with Seven Years of Fermi Large Area Telescope Data
journal, March 2017


Pion and proton showers in the CALICE scintillator-steel analogue hadron calorimeter
journal, April 2015


THE FERMI LARGE AREA TELESCOPE ON ORBIT: EVENT CLASSIFICATION, INSTRUMENT RESPONSE FUNCTIONS, AND CALIBRATION
journal, October 2012

  • Ackermann, M.; Ajello, M.; Albert, A.
  • The Astrophysical Journal Supplement Series, Vol. 203, Issue 1
  • DOI: 10.1088/0067-0049/203/1/4

Errata
journal, June 1976


International Geomagnetic Reference Field: The Eleventh Generation
text, January 2010


High Energy Positrons From Annihilating Dark Matter
text, January 2008


The energy spectrum of cosmic-ray electrons at TeV energies
text, January 2008


Probing the ATIC peak in the cosmic-ray electron spectrum with H.E.S.S
text, January 2009


Interpretation of AMS-02 electrons and positrons data
text, January 2014


Pion and proton showers in the CALICE scintillator-steel analogue hadron calorimeter
text, January 2014


Works referencing / citing this record:

Direct detection of a break in the teraelectronvolt cosmic-ray spectrum of electrons and positrons
journal, November 2017


Hard and bright gamma-ray emission at the base of the Fermi bubbles
journal, May 2019


A combined astrophysical and dark matter interpretation of the IceCube HESE and throughgoing muon events
journal, July 2018


Imprints of cosmic rays in multifrequency observations of the interstellar emission
journal, December 2017

  • Orlando, E.
  • Monthly Notices of the Royal Astronomical Society, Vol. 475, Issue 2
  • DOI: 10.1093/mnras/stx3280

Origin of the DAMPE 1.4 TeV peak
journal, May 2019

  • Chan, Man Ho; Lee, Chak Man
  • Monthly Notices of the Royal Astronomical Society: Letters, Vol. 486, Issue 1
  • DOI: 10.1093/mnrasl/slz062

Search for dark matter cosmic-ray electrons and positrons from the Sun with the Fermi Large Area Telescope
journal, January 2020


Towards Understanding the Origin of Cosmic-Ray Electrons
journal, March 2019


Measurement of the cosmic ray proton spectrum from 40 GeV to 100 TeV with the DAMPE satellite
journal, September 2019


Radiative seesaw model and DAMPE excess from leptophilic gauge symmetry
journal, March 2018


TeV SUSY dark matter confronted with the current direct and indirect detection data
journal, February 2019


An interpretation of the cosmic ray e+ + e− spectrum from 10GeV to 3TeV measured by CALET on the ISS
journal, January 2019

  • Bhattacharyya, Saptashwa; Motz, Holger; Asaoka, Yoichi
  • International Journal of Modern Physics D, Vol. 28, Issue 02
  • DOI: 10.1142/s0218271819500354

The gluon condensation in high energy cosmic rays
journal, September 2018

  • Zhu, Wei; Lan, Jiangshan; Ruan, Jianhong
  • International Journal of Modern Physics E, Vol. 27, Issue 09
  • DOI: 10.1142/s0218301318500738

A possible connection of the broken power-law between electron- and proton-spectra in cosmic rays
journal, September 2019


Analysis of the H.E.S.S. public data release with ctools
text, January 2019

  • Knödlseder, J.; Tibaldo, L.; Tiziani, D.
  • Deutsches Elektronen-Synchrotron, DESY, Hamburg
  • DOI: 10.3204/pubdb-2020-00038

Theoretical Interpretation of Pass 8 Fermi -LAT e + + e Data
journal, August 2017


HelMod in the Works: From Direct Observations to the Local Interstellar Spectrum of Cosmic-Ray Electrons
journal, February 2018

  • Boschini, M. J.; Torre, S. Della; Gervasi, M.
  • The Astrophysical Journal, Vol. 854, Issue 2
  • DOI: 10.3847/1538-4357/aaa75e

On the Gamma-Ray Nebula of Vela Pulsar. I. Very Slow Diffusion of Energetic Electrons within the TeV Nebula
journal, May 2019


A Search for Cosmic-Ray Proton Anisotropy with the Fermi Large Area Telescope
journal, September 2019


Consequences of Energetic Magnetar-like Outbursts of Nearby Neutron Stars: 14 C Events and the Cosmic Electron Spectrum
journal, December 2019


Analysis of the H.E.S.S. public data release with ctools
journal, December 2019


Measurement of cosmic-ray electrons at TeV energies by VERITAS
text, January 2018


A Search for Cosmic-Ray Proton Anisotropy with the Fermi Large Area Telescope
text, January 2019

  • Ajello, M.; Baldini, L.; Barbiellini, G.
  • Deutsches Elektronen-Synchrotron, DESY, Hamburg
  • DOI: 10.3204/pubdb-2020-00204

Towards Understanding the Origin of Cosmic-Ray Electrons
text, January 2019


Towards Understanding the Origin of Cosmic-Ray Electrons
text, January 2019


The Gluon condensation in high energy cosmic rays
text, January 2017


DAMPE excess from decaying right-handed neutrino dark matter
text, January 2017


Radiative Seesaw Model and DAMPE Excess from Leptophilic Gauge Symmetry
text, January 2017


TeV SUSY dark matter confronted with the current direct and indirect detection data
text, January 2018


Hard and bright gamma-ray emission at the base of the Fermi bubbles
text, January 2019


Origin of the DAMPE 1.4 TeV peak
text, January 2019


Analysis of the H.E.S.S. public data release with ctools
text, January 2019