Discovery of Very High Energy Gamma Rays Associated with an X-ray Binary
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, Borrel V.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, Dickinson H. J.12345, Djannati-Ataï A.12345, Drury L. O'C.12345, Dubus G.12345, Emmanoulopoulos D.12345, Espigat P.12345, Feinstein F.12345, Fleury P.12345, Fontaine G.12345, Fuchs Y.12345, Funk S.12345, Gallant Y. A.12345, Giebels B.12345, Gillessen S.12345, Glicenstein J. F.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, Jacholkowska A.12345, de Jager O. C.12345, Khélifi B.12345, Komin Nu.12345, Konopelko A.12345, Latham I. J.12345, Le Gallou R.12345, Lemière A.12345, Lemoine-Goumard M.12345, Leroy N.12345, Lohse T.12345, Marcowith A.12345, Martin J.-M.12345, Martineau-Huynh O.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, 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, Spangler D.12345, Steenkamp R.12345, Stegmann C.12345, Tavernet J.-P.12345, Terrier R.12345, Théoret C. G.12345, Tluczykont M.12345, Vasileiadis G.12345, Venter C.12345, Vincent P.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
X-ray binaries are composed of a normal star in orbit around a neutron star or stellar-mass black hole. Radio and x-ray observations have led to the presumption that some x-ray binaries called microquasars behave as scaled-down active galactic nuclei. Microquasars have resolved radio emission that is thought to arise from a relativistic outflow akin to active galactic nuclei jets, in which particles can be accelerated to large energies. Very high energy γ-rays produced by the interactions of these particles have been observed from several active galactic nuclei. Using the High Energy Stereoscopic System, we find evidence for gamma-ray emission of >100 gigaelectron volts from a candidate microquasar, LS 5039, showing that particles are also accelerated to very high energies in these systems.
Publisher
American Association for the Advancement of Science (AAAS)
Subject
Multidisciplinary
Cited by
283 articles.
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