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

Aharonian F, Akhperjanian AG, Anton G, De Almeida UB, Bazer-Bachi AR, Becherini Y, Behera B, Benbow W, Bernloehr K, Boisson C, Bochow A, Borrel V, Braun IV, Brion E, Brucker J, Brun P, Buehler R, Bulik T, Buesching I, Boutelier T, Carrigan S, Chadwick PM, Charbonnier A, Chaves RCG, Cheesebrough A, Chounet LM, Clapson AC, Coignet G, Dalton M, Daniel MK, Degrange B, Deil C, Dickinson HJ, Djannati-Atai A, Domainko W, Drury LO, Dubois F, Dubus G, Dyks J, Dyrda M, Egberts K, Emmanoulopoulos D, Espigat P, Farnier C, Feinstein F, Fiasson A, Foerster A, Fontaine G, Fuessling M, Gabici S, Gallant YA, Gerard L, Giebels B, Glicenstein JF, Glueck B, Goret P, Hauser D, Hauser M, Heinz S, Heinzelmann G, Henri G, Hermann G, Hinton JA, Hoffmann A, Hofmann W, Holleran M, Hoppe S, Horns D, Jacholkowska A, De Jager OC, Jung I, Katarzynski K, Katz U, Kaufmann S, Kendziorra E, Kerschhaggl M, Khangulyan D, Khelifi B, Keogh D, Komin N, Kosack K, Lamanna G, Lenain JP, Lohse T, Marandon V, Martin JM, Martineau-Huynh O, Marcowith A, Maurin D, Mccomb TJL, Medina MC, Moderski R, Moulin E, Naumann-Godo M, De Naurois M, Nedbal D, Nekrassov D, Niemiec J, Nolan SJ, Ohm S, Olive JF, Wilhelmi EDO, Orford KJ, Ostrowski M, Panter M, Arribas MP, Pedaletti G, Pelletier G, Petrucci PO, Pita S, Puehlhofer G, Punch M, Quirrenbach A, Raubenheimer BC, Raue M, Rayner SM, Renaud M, Reimer O, Rieger F, Ripken J, Rob L, Rosier-Lees S, Rowell G, Rudak B, Rulten CB, Ruppel J, Sahakian V, Santangelo A, Schlickeiser R, Schoeck FM, Schroeder R, Schwanke U, Schwarzburg S, Schwemmer S, Shalchi A, Skilton JL, Sol H, Spangler D, Stawarz L, Steenkamp R, Stegmann C, Superina G, Tam PH, Tavernet JP, Terrier R, Tibolla O, van Eldik C, Vasileiadis G, Venter C, Venter L, Vialle JP, Vincent P, Vivier M, Voelk HJ, Volpe F, Wagner SJ, Ward M, Zdziarski AA, Zech A (2009)

Publication Status: Published

Publication Type: Journal article, Original article

Publication year: 2009

Journal

Publisher: EDP Sciences

Book Volume: 499

Pages Range: 723-728

Journal Issue: 3

DOI: 10.1051/0004-6361/200811357

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 J108+063 is detected at a significance level of 10.9σ with an integral flux above 1 TeV of (3.76 ± 0.29 ph cm s, and a spectral photon index Γ = 2.10 ± 0.07 ± 0.2. 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. © ESO 2009.

Authors with CRIS profile

Involved external institutions

University of Paris 7 - Denis Diderot / Université Paris VII Denis Diderot France (FR) Dublin Institute for Advanced Studies (DIAS) Ireland (IE) Laboratoire d'Annecy le Vieux de Physique des Particules France (FR) Institute of Nuclear Physics Polish Academy of Sciences / Instytut Fizyki Jądrowej im. Henryka Niewodniczańskiego Polskiej Akademii Nauk Poland (PL) University of Montpellier / Université Montpellier France (FR) Max-Planck-Institut für Kernphysik (MPIK) / Max Planck Institute for Nuclear Physics Germany (DE) Ruprecht-Karls-Universität Heidelberg Germany (DE) Humboldt-Universität zu Berlin Germany (DE) École Polytechnique - Université Paris-Saclay France (FR) Centre CEA de Saclay (Essonne) France (FR) Nicolaus Copernicus Astronomical Centre of the Polish Academy of Sciences Poland (PL) Noordwes-Universiteit / North-West University South Africa (ZA) Durham University United Kingdom (GB) Centre d’étude spatiale des rayonnements (CESR) France (FR) Eberhard Karls Universität Tübingen Germany (DE) Université Joseph Fourier (UJF Grenoble 1) France (FR) University of Leeds United Kingdom (GB) Universität Hamburg (UHH) Germany (DE) Univerzita Karlova v Praze / Charles University in Prague Czech Republic (CZ) Yerevan Physics Institute (YerPhI) / Երևանի Ֆիզիկայի Ինստիտուտ Armenia (AM) Nicolaus Copernicus University (NCU) / Uniwersytet Mikołaja Kopernika w Toruniu (UMK) Poland (PL) University of Namibia (UNAM) Namibia (NA) Stanford University United States (USA) (US) Ruhr-Universität Bochum (RUB) Germany (DE) Jagiellonian University / Uniwersytet Jagielloński (UJ) Poland (PL) University of Adelaide Australia (AU)

How to cite

APA:

Aharonian, F., Akhperjanian, A.G., Anton, G., De Almeida, U.B., Bazer-Bachi, A.R., Becherini, Y.,... Zech, A. (2009). Detection of very high energy radiation from HESS J1908+063 confirms the Milagro unidentified source MGRO J1908+06. Astronomy & Astrophysics, 499(3), 723-728. https://doi.org/10.1051/0004-6361/200811357

MLA:

Aharonian, F., et al. "Detection of very high energy radiation from HESS J1908+063 confirms the Milagro unidentified source MGRO J1908+06." Astronomy & Astrophysics 499.3 (2009): 723-728.

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