A New Population of Very High Energy Gamma-Ray Sources in the Milky Way
Author:
Aharonian F.12345, Akhperjanian A. G.12345, Aye K.-M.12345, Bazer-Bachi A. R.12345, Beilicke M.12345, Benbow W.12345, Berge D.12345, Berghaus P.12345, Bernlöhr K.12345, Boisson C.12345, Bolz O.12345, Borgmeier C.12345, Braun I.12345, Breitling F.12345, Brown A. M.12345, Gordo J. Bussons12345, Chadwick P. M.12345, Chounet L.-M.12345, Cornils R.12345, Costamante L.12345, Degrange B.12345, Djannati-Ataï A.12345, Drury L. O'C.12345, Dubus G.12345, Ergin T.12345, Espigat P.12345, Feinstein F.12345, Fleury P.12345, Fontaine G.12345, Funk S.12345, Gallant Y. A.12345, Giebels B.12345, Gillessen S.12345, Goret P.12345, Hadjichristidis C.12345, Hauser M.12345, Heinzelmann G.12345, Henri G.12345, Hermann G.12345, Hinton J. A.12345, Hofmann W.12345, Holleran M.12345, Horns D.12345, de Jager O. C.12345, Jung I.12345, Khélifi B.12345, Komin Nu.12345, Konopelko A.12345, Latham I. J.12345, Le Gallou R.12345, Lemière A.12345, Lemoine M.12345, Leroy N.12345, Lohse T.12345, Marcowith A.12345, Masterson C.12345, McComb T. J. L.12345, de Naurois M.12345, Nolan S. J.12345, Noutsos A.12345, Orford K. J.12345, Osborne J. L.12345, Ouchrif M.12345, Panter M.12345, Pelletier G.12345, Pita S.12345, Pühlhofer G.12345, Punch M.12345, Raubenheimer B. C.12345, Raue M.12345, Raux J.12345, Rayner S. M.12345, Redondo I.12345, Reimer A.12345, Reimer O.12345, Ripken J.12345, Rob L.12345, Rolland L.12345, Rowell G.12345, Sahakian V.12345, Saugé L.12345, Schlenker S.12345, Schlickeiser R.12345, Schuster C.12345, Schwanke U.12345, Siewert M.12345, Sol H.12345, Steenkamp R.12345, Stegmann C.12345, Tavernet J.-P.12345, Terrier R.12345, Théoret C. G.12345, Tluczykont M.12345, van der Walt D. J.12345, Vasileiadis G.12345, Venter C.12345, Vincent P.12345, Visser B.12345, Völk H. J.12345, Wagner S. J.12345
Affiliation:
1. Max-Planck-Institut für Kernphysik, Post Office Box 103980, D-69029 Heidelberg, Germany. 2. Yerevan Physics Institute, 2 Alikhanian Brothers Street, 375036 Yerevan, Armenia. 3. Department of Physics, University of Durham, South Road, Durham DH1 3LE, UK. 4. Centre d'Etude Spatiale des Rayonnements, CNRS/UPS, 9 av. du Colonel Roche, BP 4346, F-31029 Toulouse Cedex 4, France. 5. Institut für Experimentalphysik, Universität Hamburg, Luruper Chaussee 149, D-22761 Hamburg, Germany.
Abstract
Very high energy γ-rays probe the long-standing mystery of the origin of cosmic rays. Produced in the interactions of accelerated particles in astrophysical objects, they can be used to image cosmic particle accelerators. A first sensitive survey of the inner part of the Milky Way with the High Energy Stereoscopic System (HESS) reveals a population of eight previously unknown firmly detected sources of very high energy γ-rays. At least two have no known radio or x-ray counterpart and may be representative of a new class of “dark” nucleonic cosmic ray sources.
Publisher
American Association for the Advancement of Science (AAAS)
Subject
Multidisciplinary
Reference32 articles.
1. R. Atkins et al., Astrophys. J.608, 680 (2004). 2. M. Amenomori et al., Astrophys. J.580, 887 (2002). 3. A. Daum et al., Astropart. Phys.8, 1 (1997). 4. F. Aharonian et al., Astron. Astrophys.395, 803 (2002). 5. W. Benbowet al., in International Symposium on High-Energy Gamma-Ray Astronomy, F. A. Aharonian, H. J. Völk, D. Horns, Eds. (AIP Conference Proceedings 745, 2005), pp. 611–616.
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