Skip to Main content Skip to Navigation
Journal articles

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 11 A. Förster G. Fontaine 7 M. Füßling S. Gabici Y. A. Gallant 11 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 11 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 11 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
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.
Complete list of metadatas

http://hal.in2p3.fr/in2p3-00393808
Contributor : Claudine Bombar <>
Submitted on : Tuesday, June 9, 2009 - 5:41:21 PM
Last modification on : Tuesday, November 17, 2020 - 2:36:03 PM

Links full text

Identifiers

Citation

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, EDP Sciences, 2009, 499, pp.723-728. ⟨10.1051/0004-6361/200811357⟩. ⟨in2p3-00393808⟩

Share

Metrics

Record views

1304