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Journal Articles Physical Review Letters Year : 2006

HESS Observations of the Galactic Center Region and Their Possible Dark Matter Interpretation

F. Aharonian , A. G. Akhperjanian , A.R. Bazer-Bachi (1) , M. Beilicke , W. Benbow , D. Berge , K. Bernlöhr , C. Boisson (2) , O. Bolz , V. Borrel (1) , I. Braun , F. Breitling , A. M. Brown , R. Bühler , I. Büsching , S. Carrigan , P. M. Chadwick , L.-M. Chounet (3) , R. Cornils , L. Costamante , B. Degrange (3) , H. J. Dickinson , A. Djannati-Ataï (4) , L. O.'C. Drury , G. Dubus (3) , K. Egberts , D. Emmanoulopoulos , P. Espigat (5) , F. Feinstein (6) , E. Ferrero , A. Fiasson (6) , G. Fontaine (3) , Seb. Funk , S. Funk , Y.A. Gallant (6) , B. Giebels (3) , J. F. Glicenstein (7) , P. Goret (7) , C. Hadjichristidis , D. Hauser , M. Hauser , G. Heinzelmann , G. Henri (8) , G. Hermann , J. A. Hinton , W. Hofmann , M. Holleran , D. Horns , A. Jacholkowska (6) , O. C. de Jager , B. Khélifi (3) , Nu. Komin , A. Konopelko , K. Kosack , I. J. Latham , R. Le Gallou , A. Lemière (5) , M. Lemoine-Goumard (3) , T. Lohse , J.M. Martin (2) , O. Martineau-Huynh (9) , A. Marcowith (1) , C. Masterson , T. J. L. Mccomb , M. de Naurois (9) , D. Nedbal , S. J. Nolan , A. Noutsos , K. J. Orford , J. L. Osborne , M. Ouchrif (9) , M. Panter , G. Pelletier (8) , S. Pita (5) , G. Pühlhofer , M. Punch (5) , B. C. Raubenheimer , M. Raue , S. M. Rayner , A. Reimer , O. Reimer , J. Ripken , L. Rob , L. Rolland (7, 9) , G. Rowell , V. Sahakian , L. Saugé (8) , S. Schlenker , R. Schlickeiser , U. Schwanke , H. Sol (2) , D. Spangler , F. Spanier , R. Steenkamp , C. Stegmann , G. Superina (3) , J.-P. Tavernet (9) , R. Terrier (5) , C.G. Théoret (5) , M. Tluczykont (3) , C. van Eldik , G. Vasileiadis (6) , C. Venter , P. Vincent (9) , H. J. Völk , S. J. Wagner , M. Ward
F. Aharonian
A. G. Akhperjanian
  • Function : Author
M. Beilicke
  • Function : Author
W. Benbow
  • Function : Author
D. Berge
K. Bernlöhr
C. Boisson
O. Bolz
  • Function : Author
I. Braun
  • Function : Author
F. Breitling
  • Function : Author
A. M. Brown
  • Function : Author
R. Bühler
  • Function : Author
I. Büsching
  • Function : Author
S. Carrigan
  • Function : Author
P. M. Chadwick
  • Function : Author
R. Cornils
  • Function : Author
L. Costamante
  • Function : Author
H. J. Dickinson
  • Function : Author
L. O.'C. Drury
  • Function : Author
G. Dubus
K. Egberts
  • Function : Author
D. Emmanoulopoulos
  • Function : Author
E. Ferrero
  • Function : Author
Seb. Funk
  • Function : Author
S. Funk
  • Function : Author
C. Hadjichristidis
  • Function : Author
D. Hauser
  • Function : Author
M. Hauser
  • Function : Author
G. Heinzelmann
  • Function : Author
G. Hermann
  • Function : Author
J. A. Hinton
  • Function : Author
W. Hofmann
  • Function : Author
M. Holleran
  • Function : Author
D. Horns
O. C. de Jager
  • Function : Author
B. Khélifi
Nu. Komin
A. Konopelko
  • Function : Author
K. Kosack
I. J. Latham
  • Function : Author
R. Le Gallou
  • Function : Author
M. Lemoine-Goumard
T. Lohse
C. Masterson
  • Function : Author
T. J. L. Mccomb
  • Function : Author
D. Nedbal
  • Function : Author
S. J. Nolan
  • Function : Author
A. Noutsos
  • Function : Author
K. J. Orford
  • Function : Author
J. L. Osborne
  • Function : Author
M. Panter
  • Function : Author
G. Pühlhofer
  • Function : Author
M. Punch
B. C. Raubenheimer
  • Function : Author
M. Raue
  • Function : Author
S. M. Rayner
  • Function : Author
A. Reimer
O. Reimer
  • Function : Author
J. Ripken
  • Function : Author
L. Rob
  • Function : Author
G. Rowell
V. Sahakian
  • Function : Author
S. Schlenker
  • Function : Author
R. Schlickeiser
  • Function : Author
U. Schwanke
D. Spangler
  • Function : Author
F. Spanier
  • Function : Author
R. Steenkamp
  • Function : Author
C. Stegmann
  • Function : Author
C. van Eldik
C. Venter
H. J. Völk
  • Function : Author
S. J. Wagner
  • Function : Author
M. Ward
  • Function : Author

Abstract

The detection of gamma rays from the source HESS J1745-290 in the Galactic Center (GC) region with the High Energy Spectroscopic System (HESS) array of Cherenkov telescopes in 2004 is presented. After subtraction of the diffuse gamma-ray emission from the GC ridge, the source is compatible with a point source with spatial extent less than 1.2[prime](stat) (95% C.L.). The measured energy spectrum above 160 GeV is compatible with a power law with photon index of 2.25±0.04(stat)±0.10(syst) and no significant flux variation is detected. It is finally found that the bulk of the very high energy emission must have non-dark-matter origin.

Dates and versions

in2p3-00137679 , version 1 (21-03-2007)

Identifiers

Cite

F. Aharonian, A. G. Akhperjanian, A.R. Bazer-Bachi, M. Beilicke, W. Benbow, et al.. HESS Observations of the Galactic Center Region and Their Possible Dark Matter Interpretation. Physical Review Letters, 2006, 97, pp.221102. ⟨10.1103/PhysRevLett.97.221102⟩. ⟨in2p3-00137679⟩
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