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Exploring a SNR/Molecular Cloud Association Within HESS J1745-303

F. Aharonian A.G. Akhperjanian U. Barres de Almeida A.R. Bazer-Bachi B. Behera M. Beilicke W. Benbow K. Bernlöhr C. Boisson 1 O. Bolz V. Borrel I. Braun E. Brion 2 A.M. Brown R. Bühler T. Bulik I. Büsching T. Boutelier 3 S. Carrigan P.M. Chadwick L.-M. Chounet 4 A.C. Clapson G. Coignet 5 R. Cornils L. Costamante M. Dalton B. Degrange 4 H.J. Dickinson A. Djannati-Ataï 6 W. Domainko L.O'C. Drury F. Dubois 5 G. Dubus 3 J. Dyks K. Egberts D. Emmanoulopoulos P. Espigat 7 C. Farnier 8 F. Feinstein 8 A. Fiasson 8 A. Förster G. Fontaine 4 S. Funk M. Füßling Y.A. Gallant 8 B. Giebels 4 J.F. Glicenstein 2 B. Glück P. Goret 2 C. Hadjichristidis D. Hauser M. Hauser G. Heinzelmann G. Henri 3 G. Hermann J.A. Hinton A. Hoffmann W. Hofmann M. Holleran S. Hoppe D. Horns A. Jacholkowska 8 O.C. de Jager I. Jung K. Katarzy'Nski E. Kendziorra M. Kerschhaggl B. Khélifi 4 D. Keogh Nu. Komin 8 K. Kosack G. Lamanna 5 I.J. Latham M. Lemoine-Goumard 4 J.-P. Lenain 1 T. Lohse J.M. Martin 1 O. Martineau-Huynh 9 A. Marcowith 8 C. Masterson D. Maurin 9 T.J.L. Mccomb R. Moderski Emmanuel Moulin 2 M. Naumann-Godo 4 M. de Naurois 9 D. Nedbal D. Nekrassov S.J. Nolan S. Ohm J.-P. Olive E. de Ona Wilhelmi 7 K.J. Orford J.L. Osborne M. Ostrowski M. Panter G. Pedaletti G. Pelletier 3 P.-O. Petrucci 3 S. Pita 7 G. P¨uhlhofer M. Punch 7 B.C. Raubenheimer M. Raue S.M. Rayner M. Renaud J. Ripken L. Rob S. Rosier-Lees 5 G. Rowell B. Rudak J. Ruppel V. Sahakian A. Santangelo R. Schlickeiser F.M. Sch¨ock R. Schröder U. Schwanke S. Schwarzburg S. Schwemmer A. Shalchi H. Sol D. Spangler Ł. Stawarz R. Steenkamp C. Stegmann G. Superina 4 P.H. Tam J.-P. Tavernet 9 R. Terrier 7 C. van Eldik G. Vasileiadis 8 C. Venter J.P. Vialle 5 P. Vincent 9 M. Vivier H.J. Völk F. Volpe S.J. Wagner M. Ward A.A. Zdziarski A. Zech 1
Abstract : HESS J1745-303 is an extended, unidentified VHE (very high energy) gamma-ray source discovered using HESS in the Galactic Plane Survey. Since no obvious counterpart has previously been found in longer-wavelength data, the processes that power the VHE emission are not well understood. Combining the latest VHE data with recent XMM-Newton observations and a variety of source catalogs and lower-energy survey data, we attempt to match (from an energetic and positional standpoint) the various parts of the emission of HESS J1745-303 with possible candidates. Though no single counterpart is found to fully explain the VHE emission, we postulate that at least a fraction of the VHE source may be explained by a supernova-remnant/molecular-cloud association and/or a high-spin-down-flux pulsar.
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Submitted on : Friday, May 30, 2008 - 2:39:35 PM
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F. Aharonian, A.G. Akhperjanian, U. Barres de Almeida, A.R. Bazer-Bachi, B. Behera, et al.. Exploring a SNR/Molecular Cloud Association Within HESS J1745-303. Astronomy and Astrophysics - A&A, EDP Sciences, 2008, 483, pp.509-517. ⟨10.1051/0004-6361:20079230⟩. ⟨in2p3-00274380⟩

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