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

DataBETA

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

Fermi-LAT

Collaboration

•

S. Abdollahi
(
- Hiroshima U.
)

Apr 21, 2017

16 pages

Published in:

Phys.Rev.D 95 (2017) 8, 082007

Published: Apr 21, 2017

e-Print:

1704.07195 [astro-ph.HE]

DOI:

10.1103/PhysRevD.95.082007

Report number:

FERMILAB-PUB-17-188-AE

Experiments:

FERMI-LAT

View in:

reference search247 citations

Citations per year

Abstract: (APS)

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.

98.70.Sa
96.50.sb
95.85.Ry
95.55.Vj
positron: spectrum
electron: cosmic radiation
electron positron
GLAST
power spectrum

References(40)

Figures(27)

[1]

J. Nishimura
,
M. Fujii
,
T. Taira

- International Cosmic Ray Conference 1 (1979) 488

[2]

An anomalous positron abundance in cosmic rays with energies 1.5-100 GeV

PAMELA

Collaboration

•

Oscar Adriani
(
- Florence U. and
- INFN, Florence
)

et al.

- Nature 458 (2009) 607-609
•
e-Print:
- 0810.4995
•
DOI:
- 10.1038/nature07942

[3]

Measurement of separate cosmic-ray electron and positron spectra with the Fermi Large Area Telescope

Fermi-LAT

Collaboration

•

M. Ackermann
(
)

et al.

- Phys.Rev.Lett. 108 (2012) 011103
•
e-Print:
- 1109.0521
•
DOI:
- 10.1103/PhysRevLett.108.011103

[4]

High Statistics Measurement of the Positron Fraction in Primary Cosmic Rays of 0.5–500 GeV with the Alpha Magnetic Spectrometer on the International Space Station

AMS

Collaboration

•

L. Accardo
(
- INFN, Perugia
)

et al.

- Phys.Rev.Lett. 113 (2014) 121101
•
DOI:
- 10.1103/PhysRevLett.113.121101

[5]

Searches for Cosmic-Ray Electron Anisotropies with the Fermi Large Area Telescope

Fermi-LAT

Collaboration

•

M. Ackermann
(
)

et al.

- Phys.Rev.D 82 (2010) 092003
•
e-Print:
- 1008.5119
•
DOI:
- 10.1103/PhysRevD.82.092003

[6]

C.S. Shen

- Astrophys.J. 162 (1970) L181
•
DOI:
- 10.1086/180650

[7]

EMULSION CHAMBER OBSERVATIONS OF PRIMARY COSMIC RAY ELECTRONS IN THE ENERGY RANGE 30-GEV - 1000-GEV

et al.

- Astrophys.J. 238 (1980) 394-409
•
DOI:
- 10.1086/157997

[8]

J. Nishimura
,
T. Kobayashi
,
Y. Komori
,
K. Yoshida

- Adv.Space Res. 19 (1997) 767
•
DOI:
- 10.1016/S0273-1177(96)00144-5

[9]

High energy electrons and positrons in cosmic rays as an indicator of the existence of a nearby cosmic tevatron

- Astron.Astrophys. 294 (1995) L41-L44

[10]

The most likely sources of high energy cosmic-ray electrons in supernova remnants

T. Kobayashi
(
- Sagamihara, Aoyama Gakuin U.
)
,
Y. Komori
(
- Yokosuka, U. Human Serv.
)
,
K. Yoshida
(
- Kanagawa U.
)
,
J. Nishimura
(
- JAXA, Sagamihara
)

- Astrophys.J. 601 (2004) 340-351
•
e-Print:
- astro-ph/0308470
•
DOI:
- 10.1086/380431

[11]

The origin of the positron excess in cosmic rays

Pasquale Blasi
(
- Arcetri Observ.
)

- Phys.Rev.Lett. 103 (2009) 051104
•
e-Print:
- 0903.2794
•
DOI:
- 10.1103/PhysRevLett.103.051104

[12]

High Energy Positrons From Annihilating Dark Matter

Ilias Cholis
(
- New York U., CCPP
)
,
Lisa Goodenough
(
- New York U., CCPP
)
,
Dan Hooper
(
- Fermilab and
- Chicago U., Astron. Astrophys. Ctr.
)
,
Melanie Simet
(
- Chicago U., Astron. Astrophys. Ctr. and
- Fermilab
)
,
Neal Weiner
(
- New York U., CCPP
)

- Phys.Rev.D 80 (2009) 123511
•
e-Print:
- 0809.1683
•
DOI:
- 10.1103/PhysRevD.80.123511

[13]

Model-independent implications of the e+-, anti-proton cosmic ray spectra on properties of Dark Matter

Marco Cirelli
(
- Saclay, SPhT
)
,
Mario Kadastik
(
- NICPB, Tallinn
)
,
Martti Raidal
(
- NICPB, Tallinn
)
,
Alessandro Strumia
(
- Pisa U. and
- INFN, Pisa
)

- Nucl.Phys.B 813 (2009) 1-21,
- Nucl.Phys.B 873 (2013) 530-533 (addendum)
•
e-Print:
- 0809.2409
•
DOI:
- 10.1016/j.nuclphysb.2008.11.031

[13]

Model-independent implications of the e+-, anti-proton cosmic ray spectra on properties of Dark Matter

Marco Cirelli
(
- Saclay, SPhT
)
,
Mario Kadastik
(
- NICPB, Tallinn
)
,
Martti Raidal
(
- NICPB, Tallinn
)
,
Alessandro Strumia
(
- Pisa U. and
- INFN, Pisa
)

- Nucl.Phys.B 813 (2009) 1-21,
- Nucl.Phys.B 873 (2013) 530-533 (addendum)
•
e-Print:
- 0809.2409
•
DOI:
- 10.1016/j.nuclphysb.2008.11.031

[14]

Dark matter interpretation of recent electron and positron data

- Phys.Rev.Lett. 103 (2009) 031103
•
e-Print:
- 0905.0333
•
DOI:
- 10.1103/PhysRevLett.103.031103

[15]

Precision Measurement of the ( $e^+ + e^−$ ) Flux in Primary Cosmic Rays from 0.5 GeV to 1 TeV with the Alpha Magnetic Spectrometer on the International Space Station

AMS

Collaboration

•

M. Aguilar
(
- Madrid, CIEMAT
)

et al.

- Phys.Rev.Lett. 113 (2014) 221102
•
DOI:
- 10.1103/PhysRevLett.113.221102

[16]

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

Fermi-LAT

Collaboration

•

M. Ackermann
(
- Stanford U., HEPL and
- Taiwan, Natl. Taiwan U. and
- SLAC
)

et al.

- Phys.Rev.D 82 (2010) 092004
•
e-Print:
- 1008.3999
•
DOI:
- 10.1103/PhysRevD.82.092004

[17]

The energy spectrum of cosmic-ray electrons at TeV energies

H.E.S.S.

Collaboration

•

F. Aharonian
(
- Heidelberg, Max Planck Inst. and
- Dublin Inst.
)

et al.

- Phys.Rev.Lett. 101 (2008) 261104
•
e-Print:
- 0811.3894
•
DOI:
- 10.1103/PhysRevLett.101.261104

[18]

Probing the ATIC peak in the cosmic-ray electron spectrum with H.E.S.S

H.E.S.S.

Collaboration

•

F. Aharonian
(
- Heidelberg, Max Planck Inst. and
- Dublin Inst.
)

et al.

- Astron.Astrophys. 508 (2009) 561
•
e-Print:
- 0905.0105
•
DOI:
- 10.1051/0004-6361/200913323

[19]

Interpretation of AMS-02 electrons and positrons data

M. Di Mauro
(
- Turin U. and
- INFN, Turin and
- Annecy, LAPTH
)
,
F. Donato
(
- Turin U. and
- INFN, Turin
)
,
N. Fornengo
(
- Turin U. and
- INFN, Turin
)
,
R. Lineros
(
- Valencia U., IFIC
)
,
A. Vittino
(
- Turin U. and
- INFN, Turin and
- IPhT, Saclay
)

- JCAP 04 (2014) 006
•
e-Print:
- 1402.0321
•
DOI:
- 10.1088/1475-7516/2014/04/006

[20]

The Large Area Telescope on the Fermi Gamma-ray Space Telescope Mission

Fermi-LAT

Collaboration

•

W.B. Atwood
(
- UC, Santa Cruz
)

et al.

- Astrophys.J. 697 (2009) 1071-1102
•
e-Print:
- 0902.1089
•
DOI:
- 10.1088/0004-637X/697/2/1071

[21]

Pass 8: Toward the Full Realization of the Fermi-LAT Scientific Potential

Fermi-LAT

Collaboration

•

W. Atwood

et al.

e-Print:
- 1303.3514

[22]

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

Fermi-LAT

Collaboration

•

S. Abdollahi
(
- Hiroshima U.
)

et al.

- Phys.Rev.Lett. 118 (2017) 9, 091103
•
e-Print:
- 1703.01073
•
DOI:
- 10.1103/PhysRevLett.118.091103

[23]

Theoretical interpretation of Pass 8 $Fermi$ -LAT $e^+ + e^-$ data

Mattia Di Mauro
(
- SLAC and
- Stanford U., HEPL
)
,
Silvia Manconi
(
- Turin U. and
- INFN, Turin
)
,
Andrea Vittino
(
- Munich, Tech. U.
)
,
Fiorenza Donato
(
- Turin U. and
- INFN, Turin
)
,
Nicolao Fornengo
(
- Turin U. and
- INFN, Turin
)

et al.

- Astrophys.J. 845 (2017) 2, 107
•
e-Print:
- 1703.00460
•
DOI:
- 10.3847/1538-4357/aa8225

[24]

TMVA - Toolkit for Multivariate Data Analysis

TMVA

Collaboration

•

Andreas Hocker
(
- CERN
)

et al.

e-Print:
- physics/0703039

1-25 of 40
1
2
25 / page