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Journal Articles Astronomy and Astrophysics - A&A Year : 2009

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

F. Aharonian , A.G. Akhperjanian , G. Anton , U. Barres de Almeida , A.R. Bazer-Bachi (1) , Y. Becherini , B. Behera , K. Bernlöhr , A. Bochow , C. Boisson (2) , J. Bolmont (3) , V. Borrel (1) , J. Brucker , F. Brun (3) , P. Brun (4) , R. Bühler , T. Bulik , I. Büsching , T. Boutelier (5) , P.M. Chadwick , A. Charbonnier (3) , R.C.G. Chaves , A. Cheesebrough , L.-M. Chounet (6) , G. Coignet (7) , M. Dalton , M.K. Daniel , I.D. Davids , B. Degrange (6) , C. Deil , H.J. Dickinson , A. Djannati-Ataï , W. Domainko , L.O'C. Drury , F. Dubois (7) , G. Dubus (5) , J. Dyks , M. Dyrda , K. Egberts , D. Emmanoulopoulos , P. Espigat , C. Farnier , F. Feinstein , A. Fiasson (7) , A. Förster , G. Fontaine (6) , M. Füsling , S. Gabici , Y.A. Gallant , L. G'Erard , D. Gerbig , B. Giebels , J.F. Glicenstein (4) , B. Glück , P. Goret (4) , D. Göring , D. Hauser , M. Hauser , S. Heinz , G. Heinzelmann , G. Henri (5) , G. Hermann , J.A. Hinton , A. Hoffmann , W. Hofmann , M. Holleran , S. Hoppe , D. Horns , A. Jacholkowska (3) , O.C. de Jager , C. Jahn , I. Jung , K. Katarzy'Nski , U. Katz , S. Kaufmann , E. Kendziorra , M. Kerschhaggl , D. Khangulyan , B. Khélifi (6) , D. Keogh , W. Klu'Zniak , T. Kneiske , Nu. Komin , K. Kosack , R. Kossakowski (7) , G. Lamanna (7) , J.-P. Lenain (2) , T. Lohse , V. Marandon , J.M. Martin (2) , O. Martineau-Huynh (3) , A. Marcowith , Julien Masbou (7) , D. Maurin (3) , T.J.L. Mccomb , M.C. Medina (2) , R. Moderski , Emmanuel Moulin (4) , M. Naumann-Godo (6) , M. de Naurois , D. Nedbal , D. Nekrassov , B. Nicholas , J. Niemiec , S.J. Nolan , S. Ohm , J.-F. Olive (1) , E. de O˜na , K.J. Orford , M. Ostrowski , M. Panter , M. Paz Arribas , G. Pedaletti , G. Pelletier (5) , P.-O. Petrucci (5) , S. Pita , G. Pühlhofer , M. Punch , A. Quirrenbach , B.C. Raubenheimer , M. Raue , S.M. Rayner , O. Reimer , M. Renaud , F. Rieger , J. Ripken , L. Rob , S. Rosier-Lees (7) , G. Rowell , B. Rudak , C.B. Rulten , J. Ruppel , V. Sahakian , A. Santangelo , R. Schlickeiser , F.M. Sch¨ock , R. Schröder , U. Schwanke , S. Schwarzburg , S. Schwemmer , A. Shalchi , J.L. Skilton , H. Sol (2) , D. Spangler , L. Stawarz , R. Steenkamp , C. Stegmann , F. Stinzing , G. Superina (6) , A. Szostek , P.H. Tam , J.-P. Tavernet (3) , R. Terrier , O. Tibolla , M. Tluczykont , C. van Eldik , G. Vasileiadis , C. Venter , L. Venter (2) , J.P. Vialle (7) , P. Vincent (3) , M. Vivier (4) , H.J. Völk , F. Volpe , S.J. Wagner , M. Ward , A.A. Zdziarski , A. Zech (2)
F. Aharonian
A.G. Akhperjanian
  • Function : Author
G. Anton
  • Function : Author
U. Barres de Almeida
Y. Becherini
  • Function : Author
B. Behera
  • Function : Author
K. Bernlöhr
A. Bochow
  • Function : Author
C. Boisson
J. Brucker
  • Function : Author
R. Bühler
  • Function : Author
T. Bulik
  • Function : Author
I. Büsching
  • Function : Author
P.M. Chadwick
  • Function : Author
R.C.G. Chaves
  • Function : Author
A. Cheesebrough
  • Function : Author
M. Dalton
  • Function : Author
M.K. Daniel
  • Function : Author
I.D. Davids
  • Function : Author
C. Deil
  • Function : Author
H.J. Dickinson
  • Function : Author
A. Djannati-Ataï
  • Function : Author
W. Domainko
  • Function : Author
L.O'C. Drury
  • Function : Author
F. Dubois
  • Function : Author
  • PersonId : 879245
  • IdRef : 14950232X
G. Dubus
J. Dyks
  • Function : Author
M. Dyrda
  • Function : Author
K. Egberts
  • Function : Author
D. Emmanoulopoulos
  • Function : Author
P. Espigat
  • Function : Author
C. Farnier
  • Function : Author
F. Feinstein
  • Function : Author
A. Fiasson
A. Förster
  • Function : Author
M. Füsling
  • Function : Author
S. Gabici
  • Function : Author
Y.A. Gallant
  • Function : Author
L. G'Erard
  • Function : Author
D. Gerbig
  • Function : Author
B. Giebels
  • Function : Author
B. Glück
  • Function : Author
D. Göring
  • Function : Author
D. Hauser
  • Function : Author
M. Hauser
  • Function : Author
S. Heinz
  • Function : Author
G. Heinzelmann
  • Function : Author
G. Hermann
  • Function : Author
J.A. Hinton
  • Function : Author
A. Hoffmann
  • Function : Author
W. Hofmann
  • Function : Author
M. Holleran
  • Function : Author
S. Hoppe
  • Function : Author
D. Horns
O.C. de Jager
  • Function : Author
C. Jahn
  • Function : Author
I. Jung
K. Katarzy'Nski
  • Function : Author
U. Katz
S. Kaufmann
  • Function : Author
E. Kendziorra
  • Function : Author
M. Kerschhaggl
  • Function : Author
D. Khangulyan
B. Khélifi
D. Keogh
  • Function : Author
W. Klu'Zniak
  • Function : Author
T. Kneiske
  • Function : Author
Nu. Komin
K. Kosack
J.-P. Lenain
T. Lohse
V. Marandon
A. Marcowith
Julien Masbou
T.J.L. Mccomb
  • Function : Author
R. Moderski
  • Function : Author
M. de Naurois
D. Nedbal
  • Function : Author
D. Nekrassov
  • Function : Author
B. Nicholas
  • Function : Author
J. Niemiec
S.J. Nolan
  • Function : Author
S. Ohm
E. de O˜na
  • Function : Author
K.J. Orford
  • Function : Author
M. Ostrowski
M. Panter
  • Function : Author
M. Paz Arribas
  • Function : Author
G. Pedaletti
  • Function : Author
S. Pita
  • Function : Author
G. Pühlhofer
  • Function : Author
M. Punch
A. Quirrenbach
  • Function : Author
B.C. Raubenheimer
  • Function : Author
M. Raue
  • Function : Author
S.M. Rayner
  • Function : Author
O. Reimer
  • Function : Author
M. Renaud
  • Function : Author
F. Rieger
J. Ripken
  • Function : Author
L. Rob
  • Function : Author
G. Rowell
B. Rudak
C.B. Rulten
  • Function : Author
J. Ruppel
  • Function : Author
V. Sahakian
  • Function : Author
A. Santangelo
R. Schlickeiser
  • Function : Author
F.M. Sch¨ock
  • Function : Author
R. Schröder
  • Function : Author
U. Schwanke
S. Schwarzburg
  • Function : Author
S. Schwemmer
  • Function : Author
A. Shalchi
  • Function : Author
J.L. Skilton
  • Function : Author
D. Spangler
  • Function : Author
L. Stawarz
  • Function : Author
R. Steenkamp
  • Function : Author
C. Stegmann
  • Function : Author
F. Stinzing
  • Function : Author
A. Szostek
  • Function : Author
P.H. Tam
  • Function : Author
R. Terrier
  • Function : Author
O. Tibolla
  • Function : Author
M. Tluczykont
  • Function : Author
C. van Eldik
G. Vasileiadis
  • Function : Author
C. Venter
H.J. Völk
  • Function : Author
F. Volpe
  • Function : Author
S.J. Wagner
  • Function : Author
M. Ward
  • Function : Author
A.A. Zdziarski
  • Function : Author
A. Zech

Abstract

The measurement of an excess in the cosmic-ray electron spectrum between 300 and 800 GeV by the ATIC experiment has - together with the PAMELA detection of a rise in the positron fraction up to 100 GeV - motivated many interpretations in terms of dark matter scenarios; alternative explanations assume a nearby electron source like a pulsar or supernova remnant. Here we present a measurement of the cosmic-ray electron spectrum with H.E.S.S. starting at 340 GeV. The H.E.S.S. data with their lower statistical errors show no indication of a structure in the electron spectrum, but rather a power-law spectrum with spectral index of 3.0 +- 0.1 (stat.) +- 0.3 (syst.) which steepens at about 1 TeV.

Dates and versions

in2p3-00380853 , version 1 (04-05-2009)

Identifiers

Cite

F. Aharonian, A.G. Akhperjanian, G. Anton, U. Barres de Almeida, A.R. Bazer-Bachi, et al.. Probing the ATIC peak in the cosmic-ray electron spectrum with H.E.S.S. Astronomy and Astrophysics - A&A, 2009, 508, pp.561-564. ⟨10.1051/0004-6361/200913323⟩. ⟨in2p3-00380853⟩
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