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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
  • , O. Bolz
  • , V. Borrel
  • , I. Braun
  • , E. Brion
  • , A. M. Brown
  • , R. Bühler
  • , T. Bulik
  • , I. Büsching
  • , T. Boutelier
  • , S. Carrigan
  • , P. M. Chadwick
  • L. M. Chounet, A. C. Clapson, G. Coignet, R. Cornils, L. Costamante, M. Dalton, B. Degrange, H. J. Dickinson, A. Djannati-Ataï, W. Domainko, L. O.C. Drury, F. Dubois, G. Dubus, J. Dyks, K. Egberts, D. Emmanoulopoulos, P. Espigat, C. Farnier, F. Feinstein, A. Fiasson, A. Förster, G. Fontaine, S. Funk, M. Füßling, Y. A. Gallant, B. Giebels, J. F. Glicenstein, B. Glück, P. Pgoret, C. Hadjichristidis, D. Hauser, M. Hauser, G. Heinzelmann, G. Henri, G. Hermann, J. A. Hinton, A. Hoffmann, W. Hofmann, M. Holleran, S. Hoppe, D. Horns, A. Jacholkowska, O. C. De Jager, I. Jung, K. Katarzyński, E. Kendziorra, M. Kerschhaggl, B. Khélifi, D. Keogh, Nu Komin, K. Kosack, G. Lamanna, I. J. Latham, M. Lemoine-Goumard, J. P. Lenain, T. Lohse, J. M. Martin, O. Martineau-Huynh, A. Marcowith, C. Masterson, D. Maurin, T. J.L. McComb, R. Moderski, E. Moulin, M. Naumann-Godo, M. De Naurois, D. Nedbal, D. Nekrassov, S. J. Nolan, S. Ohm, J. P. Olive, E. De Oña Wilhelmi, K. J. Orford, J. L. Osborne, M. Ostrowski, M. Panter, G. Pedaletti, G. Pelletier, P. O. Petrucci, S. Pita, G. Pühlhofer, M. Punch, B. C. Raubenheimer, M. Raue, S. M. Rayner, M. Renaud, J. Ripken, L. Rob, S. Rosier-Lees, G. Rowell, B. Rudak, J. Ruppel, V. Sahakian, A. Santangelo, R. Schlickeiser, F. M. Schöck, R. Schröder, U. Schwanke, S. Schwarzburg, S. Schwemmer, A. Shalchi, H. Sol, D. Spangler, Stawarz, R. Steenkamp, C. Stegmann, G. Superina, P. Tam, J. P. Tavernet, R. Terrier, C. Van Eldik, G. Vasileiadis, C. Venter, J. P. Vialle, P. Vincent, M. Vivier, H. J. Völk, F. Volpe, S. J. Wagner, M. Ward, A. A. Zdziarski, A. Zech
  • Max-Planck-Institut für Kernphysik
  • Dublin Institute for Advanced Studies
  • Yerevan Physics Institute
  • Department of Physics
  • Durham University
  • Centre national de la recherche scientifique
  • Landessternwarte Heidelberg
  • Universität Hamburg
  • Institut für Physik
  • Humboldt-Universität zu Berlin
  • LUTH - Laboratoire de l'Univers et de ses Theories
  • Institut Pierre Simon Laplace, CNRS and CEA
  • Nicolaus Copernicus Astronomical Center of the Polish Academy of Sciences
  • Unit for Space Physics
  • North-West University
  • Université Paris-Sud
  • European Associated Laboratory for Gamma-Ray Astronomy
  • Astroparticule and Cosmol APC
  • Laboratoire Univers et Particules de Montpellier
  • Kavli Institute for Particle Astrophysics and Cosmology
  • Physikalisches Institut
  • School of Physics and Astronomy
  • University of Leeds
  • Institut für Astronomie und Astrophysik
  • University of Tübingen
  • Toruń Centre for Astronomy
  • Nicolaus Copernicus University
  • Universités Paris VI and VII
  • Charles University
  • Jagiellonian University
  • University of South Australia
  • Ruhr-University Bochum
  • University of Namibia
  • Friedrich-Alexander University (FAU) Erlangen-Nürnberg and Universitätsklinikum Erlangen

Research output: Contribution to journal › Article › peer-review

85 Citations (Scopus)

Abstract

Aims. 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.Methods. 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.Results. 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.

Original languageEnglish
Pages (from-to)509-517
Number of pages9
JournalAstronomy and Astrophysics
Volume483
Issue number2
DOIs
Publication statusPublished - 1 Jan 2008
Externally publishedYes

Keywords

  • Galaxy: general
  • Gamma rays: observations
  • ISM: clouds
  • ISM: cosmic rays
  • X-rays: general

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