Detection of very high energy radiation from HESS J1908+063 confirms the Milagro unidentified source MGRO J1908+06 - IN2P3 - Institut national de physique nucléaire et de physique des particules Access content directly
Journal Articles Astronomy and Astrophysics - A&A Year : 2009

Detection of very high energy radiation from HESS J1908+063 confirms the Milagro unidentified source MGRO J1908+06

F. Aharonian , A. G. Akhperjanian , G. Anton , U. Barres de Almeida , A. R. Bazer-Bachi (1) , Y. Becherini (2) , B. Behera , W. Benbow , K. Bernlöhr , C. Boisson (3) , A. Bochow , V. Borrel (1) , I. Braun , E. Brion (4) , J. Brucker , P. Brun (4) , R. Bühler , T. Bulik , I. Büsching , T. Boutelier (5) , S. Carrigan , P. M. Chadwick , A. Charbonnier (6) , R. C. G. Chaves , A. Cheesebrough , L.-M. Chounet (7) , A. C. Clapson , G. Coignet (8) , M. Dalton , M. K. Daniel , B. Degrange (7) , C. Deil , H. J. Dickinson , A. Djannati-Ataï (9) , W. Domainko , L. O'C. Drury , F. Dubois (8) , G. Dubus (5) , J. Dyks , M. Dyrda , K. Egberts , D. Emmanoulopoulos , P. Espigat (2) , C. Farnier (10) , F. Feinstein (10) , A. Fiasson (10) , A. Förster , G. Fontaine (7) , M. Füssling , S. Gabici , Y. A. Gallant (10) , L. Gérard (2) , B. Giebels (7) , J. F. Glicenstein (4) , B. Glück , P. Goret (4) , 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 (6) , O. C. de Jager , I. Jung , K. Katarzyński , U. Katz , S. Kaufmann , E. Kendziorra , M. Kerschhaggl , D. Khangulyan , B. Khélifi (7) , D. Keogh , N. Komin (4) , K. Kosack , G. Lamanna (8) , J.-P. Lenain (3) , T. Lohse , V. Marandon (6) , J. M. Martin (3) , O. Martineau-Huynh (6) , A. Marcowith (10) , D. Maurin (6) , T. J. L. Mccomb , M. C. Medina (3) , R. Moderski , Emmanuel Moulin , M. Naumann-Godo (7) , M. de Naurois (6) , D. Nedbal , D. Nekrassov , J. Niemiec , S. J. Nolan , S. Ohm , J.-F. Olive (1) , E. de Oña Wilhelmi (2) , K. J. Orford , M. Ostrowski , M. Panter , M. Paz Arribas , G. Pedaletti , G. Pelletier (5) , P.-O. Petrucci (5) , S. Pita (2) , G. Pühlhofer , M. Punch (2) , A. Quirrenbach , B. C. Raubenheimer , M. Raue , S. M. Rayner , M. Renaud , O. Reimer , F. Rieger , J. Ripken , L. Rob , S. Rosier-Lees (8) , G. Rowell , B. Rudak , C. B. Rulten , J. Ruppel , V. Sahakian , A. Santangelo , R. Schlickeiser , F. M. Schöck , R. Schröder , U. Schwanke , S. Schwarzburg , S. Schwemmer , A. Shalchi , J. L. Skilton , H. Sol (3) , D. Spangler , Ł. Stawarz , R. Steenkamp , C. Stegmann , G. Superina (7) , P. H. Tam , J.-P. Tavernet (6) , R. Terrier (2) , O. Tibolla , C. van Eldik , G. Vasileiadis (10) , C. Venter , L. Venter (3) , J. P. Vialle (8) , P. Vincent (6) , M. Vivier (4) , H. J. Völk , F. Volpe (7) , S. J. Wagner , M. Ward , A. A. Zdziarski , A. Zech (3)
F. Aharonian
A. G. Akhperjanian
  • Function : Author
G. Anton
  • Function : Author
U. Barres de Almeida
B. Behera
  • Function : Author
W. Benbow
  • Function : Author
K. Bernlöhr
C. Boisson
A. Bochow
  • Function : Author
I. Braun
  • Function : Author
J. Brucker
  • Function : Author
R. Bühler
  • Function : Author
T. Bulik
  • Function : Author
I. Büsching
  • Function : Author
S. Carrigan
  • Function : Author
P. M. Chadwick
  • Function : Author
R. C. G. Chaves
  • Function : Author
A. Cheesebrough
  • Function : Author
A. C. Clapson
  • Function : Author
M. Dalton
  • Function : Author
M. K. Daniel
  • Function : Author
C. Deil
  • Function : Author
H. J. Dickinson
  • 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
A. Förster
  • Function : Author
M. Füssling
  • Function : Author
S. Gabici
  • Function : Author
B. Glück
  • 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
I. Jung
K. Katarzyński
  • Function : Author
U. Katz
S. Kaufmann
  • Function : Author
E. Kendziorra
  • Function : Author
M. Kerschhaggl
  • Function : Author
D. Khangulyan
B. Khélifi
D. Keogh
  • Function : Author
K. Kosack
J.-P. Lenain
T. Lohse
T. J. L. Mccomb
  • Function : Author
R. Moderski
  • Function : Author
Emmanuel Moulin
D. Nedbal
  • Function : Author
D. Nekrassov
  • Function : Author
J. Niemiec
S. J. Nolan
  • Function : Author
S. Ohm
K. J. Orford
  • Function : Author
M. Ostrowski
M. Panter
  • Function : Author
M. Paz Arribas
  • Function : Author
G. Pedaletti
  • 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
M. Renaud
  • Function : Author
O. Reimer
  • 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. Schöck
  • 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
Ł. Stawarz
  • Function : Author
R. Steenkamp
  • Function : Author
C. Stegmann
  • Function : Author
P. H. Tam
  • Function : Author
O. Tibolla
  • Function : Author
C. van Eldik
C. Venter
H. J. Völk
  • Function : Author
S. J. Wagner
  • Function : Author
M. Ward
  • Function : Author
A. A. Zdziarski
  • Function : Author
A. Zech

Abstract

Aims: Detection of a γ-ray source above 300 GeV is reported, confirming the unidentified source MGRO J1908+06, discovered by the Milagro collaboration at a median energy of 20 TeV. Methods: The source was observed during 27 h as part of the extension of the HESS Galactic plane survey to longitudes >30°. Results: HESS J1908+063 is detected at a significance level of 10.9σ with an integral flux above 1 TeV of (3.76 ± 0.29~stat± 0.75_sys)×10-12 ph cm-2 s-1, and a spectral photon index Γ = 2.10±0.07~stat± 0.2sys. The positions and fluxes of HESS J1908+063 and MGRO J1908+06 are in good agreement. Possible counterparts at other wavelengths and the origin of the γ-ray emission are discussed. The nearby unidentified GeV source, GRO J1908+0556 (GeV) which also remains unidentified and the new Fermi pulsar 0FGL J1907.5+0617, may be connected to the TeV source.

Dates and versions

in2p3-00393808 , version 1 (09-06-2009)

Identifiers

Cite

F. Aharonian, A. G. Akhperjanian, G. Anton, U. Barres de Almeida, A. R. Bazer-Bachi, et al.. Detection of very high energy radiation from HESS J1908+063 confirms the Milagro unidentified source MGRO J1908+06. Astronomy and Astrophysics - A&A, 2009, 499, pp.723-728. ⟨10.1051/0004-6361/200811357⟩. ⟨in2p3-00393808⟩
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