Very high energy gamma rays from the composite SNR G 0.9+0.1

Aharonian, F.; Akhperjanian, A. G.; Aye, K.-M.; Bazer-Bachi, A. R.; Beilicke, M.; Benbow, W.; Berge, D.; Berghaus, P.; Bernlöhr, K.; Bolz, O.; Boisson, C:; Borgmeier, C.; Breitling, F.; Brown, A. M.; Bussons Gordo, J.; Chadwick, P. M.; Braun, I.; Chounet, L.-M.; Cornils, R.; Costamante, L.; Degrange, B.; Djannati-Atai, A.; Drury, L.O'C.; Ergin, T.; Espigat, P.; Feinstein, F.; Fleury, P.; Fontaine, G.; Funk, S.; Gallant, Y. A.; Giebels, B.; Gillessen, S.; Goret, P.; Dubus, G.; Hadjichristidis, C.; Hauser, M.; Heinzelmann, G.; Henri, G.; Hermann, G.; Hinton, J. A.; Hofmann, W.; Holleran, M.; Horns, D.; de Jager, O. C.; Jung, I.; Khélifi, B.; Komin, N.; Konopelko, A.; Latham, I. J.; Le Gallou, R.; Lemoine, M.; Lemière, A.; Leroy, N.; Lohse, T.; Marcowith, A.; Masterson, C.; McComb, T. J. L.; de Naurois, M.; Nolan, S. J.; Noutsos, A.; Orford, K. J.; Osborne, J. L.; Ouchrif, M.; Panter, M.; Pelletier, G.; Pita, S.; Fuchs, Y.; Pühlhofer, G.; Punch, M.; Raubenheimer, B. C.; Raue, M.; Raux, J.; Rayner, S. M.; Redondo, I.; Reimer, A.; Reimer, O.; Ripken, J.; Terrier, R.; Rob, L.; Rolland, L.; Rowell, G.; Sahakian, V.; Saugé, L.; Schlenker, S.; Schlickeiser, R.; Schuster, C.; Schwanke, U.; Siewert, M.; Sol, H.; Steenkamp, R.; Stegmann, C.; Tavernet, J.-P-; Théoret, C. G.; Tluczykont, M.; Venter, C.; Vasileiadis, G.; Vincent, P.; Visser, B.; Völk, H. J.; Wagner, S. J.

doi:10.1051/0004-6361:200500022

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Very high energy gamma rays from the composite SNR G 0.9+0.1

Aharonian, F., Akhperjanian, A. G., Aye, K.-M., Bazer-Bachi, A. R., Beilicke, M., Benbow, W., et al. (2005). Very high energy gamma rays from the composite SNR G 0.9+0.1. Astronomy & Astrophysics, 432(2), L25-L29. doi:10.1051/0004-6361:200500022.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0011-895D-6 Version Permalink: https://hdl.handle.net/11858/00-001M-0000-0011-895E-4

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Aharonian, F.¹, Author
Akhperjanian, A. G.¹, Author
Aye, K.-M.², Author
Bazer-Bachi, A. R.², Author
Beilicke, M.¹, Author
Benbow, W.¹, Author
Berge, D.¹, Author
Berghaus, P.², Author
Bernlöhr, K.¹, Author
Bolz, O.¹, Author
Boisson, C:², Author
Borgmeier, C.², Author
Breitling, F.², Author
Brown, A. M.², Author
Bussons Gordo, J.², Author
Chadwick, P. M.², Author
Braun, I.¹, Author
Chounet, L.-M.², Author
Cornils, R.¹, Author
Costamante, L.¹, Author
Degrange, B.², AuthorDjannati-Atai, A.¹, Author         Drury, L.O'C.², AuthorErgin, T.², AuthorEspigat, P.², AuthorFeinstein, F.¹, Author         Fleury, P.², AuthorFontaine, G.², AuthorFunk, S.¹, Author         Gallant, Y. A.¹, Author         Giebels, B.², AuthorGillessen, S.¹, Author         Goret, P.², AuthorDubus, G.¹, Author         Hadjichristidis, C.², AuthorHauser, M.², AuthorHeinzelmann, G.², AuthorHenri, G.², AuthorHermann, G.¹, Author         Hinton, J. A.¹, Author         Hofmann, W.¹, Author         Holleran, M.², AuthorHorns, D.¹, Author         de Jager, O. C.², AuthorJung, I.¹, Author         Khélifi, B.¹, Author         Komin, N.², AuthorKonopelko, A.³, Author         Latham, I. J.², AuthorLe Gallou, R.², AuthorLemoine, M.², AuthorLemière, A.², AuthorLeroy, N.², AuthorLohse, T.², AuthorMarcowith, A.², AuthorMasterson, C.¹, Author         McComb, T. J. L.², Authorde Naurois, M.¹, Author         Nolan, S. J.², AuthorNoutsos, A.², AuthorOrford, K. J.¹, Author         Osborne, J. L.¹, Author         Ouchrif, M.², AuthorPanter, M.¹, Author         Pelletier, G.², AuthorPita, S.², AuthorFuchs, Y.², AuthorPühlhofer, G.¹, Author         Punch, M.², AuthorRaubenheimer, B. C.², AuthorRaue, M.¹, Author         Raux, J.², AuthorRayner, S. M.², AuthorRedondo, I.², AuthorReimer, A.², AuthorReimer, O.², AuthorRipken, J.², AuthorTerrier, R.², AuthorRob, L.², AuthorRolland, L.², AuthorRowell, G.¹, Author         Sahakian, V.², AuthorSaugé, L.¹, Author         Schlenker, S.², AuthorSchlickeiser, R.², AuthorSchuster, C.², AuthorSchwanke, U.², AuthorSiewert, M.², AuthorSol, H.², AuthorSteenkamp, R.², AuthorStegmann, C.², AuthorTavernet, J.-P-², AuthorThéoret, C. G.², AuthorTluczykont, M.², AuthorVenter, C.², AuthorVasileiadis, G.¹, Author         Vincent, P.², AuthorVisser, B.², AuthorVölk, H. J.³, Author         Wagner, S. J.², Author more..

Affiliations:
1Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society, ou_904550
2Yerevan Physics Institute, Armenia University of Durham, Department of Physics, UK Centre d'Etudes Spatiales des Rayonnements, CNRS/UPS Toulouse, France Universität Hamburg, Institut für Experimentalphysik, Germany Physique Corpusculaire et Cosmologie, IN2P3/CNRS, Collège de France, Paris, France Institut für Physik, Humboldt-Universität zu Berlin, Germany LUTH, UMR 8102 du CNRS, Observatoire de Paris, Section de Meudon, France Groupe d'astroparticules de Montpellier, IN2P3/CNRS, Université Montpellier II, France Laboratoire de Physique Nucléaire et de Hautes Energies, IN2P3/CNRS, Universités Paris VI & VII, Jussieu, France European Associated Laboratory for Gamma-Ray Astronomy, jointly supported by CNRS and MPG Laboratoire Leprince-Ringuet, IN2P3/CNRS, Ecole Polytechnique, Palaiseau, France Dublin Institute for Advanced Studies, Ireland Service d'Astrophysique. DAPNIA/DSM/CEA, CE Saclay, Gif-sur-Yvette, France Landessternwarte, Königstuhl, Heidelberg, Germany Laboratoire d'Astrophysique de Grenoble, INSU/CNRS, Université Joseph Fourier, France Unit for Space Physics, North-West University, Potchefstroom, South Africa Institut für theoretische Physik, Lehrstuhl IV, Ruhr-Universität Bochum, Germany Institute of Particle and Nuclear Physics, Charles University, Prague, Czech Republic University of Namibia, Windhoek, Namibia, ou_persistent22
3Prof. Heinrich J. Völk, Emeriti, MPI for Nuclear Physics, Max Planck Society, ou_907548

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Free keywords: ISM: supernova remnants -- ISM: individual objects: G 0.9+0.1 -- gamma-rays: observations H.E.S.S.

Abstract: Very high energy (>100 GeV) gamma-ray emission has been detected for the first time from the composite supernova remnant G 0.9+0.1 using the HESS instrument. The source is detected with a significance of ± 13σ, and a photon flux above 200 GeV of ( 5.7 ± 0.7 _stat ± 1.2 _sys x 10 ^-12 cm ^-2 s^-1, making it one of the weakest sources ever detected at TeV energies. The photon spectrum is compatible with a power law (dN/dEα E ^-Γ) with photon index Γ = 2.40 ±0.11 _stat ± 0.20 _sys. The gamma-ray emission appears to originate in the plerionic core of the remnant, rather than the shell, and can be plausibly explained as inverse Compton scattering of relativistic electrons.

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Language(s): eng - English

Dates: Date issued: 2005-03-03

Publication Status: Issued

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Identifiers: eDoc: 236758
DOI: 10.1051/0004-6361:200500022

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Title: Astronomy & Astrophysics

Alternative Title : A&A

Source Genre: Journal

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Pages: - Volume / Issue: 432 (2) Sequence Number: - Start / End Page: L25 - L29 Identifier: -