Discovery of very high energy gamma rays associated with an x-ray binary.

Wagner, Sj; Wagner, S. J.; Akhperjanian, Ag G.; Aye, Km-M.; Bazer-Bachi, Ar R.; O'c Drury, L.; Beilicke, M.; Benbow, W.; Berge, D.; Aharonian, F.; Berghaus, P.; Bernlöhr, K.; J. Dickinson, H.; Boisson, C.; Bolz, O.; Borrel, V.; Braun, I.; Breitling, F.; Gordo, J. Bussons; Brown, Am M.; Cornils, R.; Chadwick, Pm M.; Costamante, L.; Chounet, Lm-M.; Dickinson, Hj J.; Degrange, B.; Djannati-Ataï, A.; Drury, Lo O.-'.-C; Dubus, G.; Emmanoulopoulos, D.; Espigat, P.; Feinstein, F.; Fleury, P.; Fontaine, G.; Fuchs, Y.; Funk, S.; Gallant, Ya A.; Giebels, B.; Gillessen, S.; Glicenstein, Jf F.; Goret, P.; Bussons Gordo, J.; Hadjichristidis, C.; Hauser, M.; Heinzelmann, G.; Henri, G.; Hermann, G.; Hinton, Ja A.; Hofmann, W.; de Jager, O. C.; Holleran, M.; Horns, D.; Oc, de Jager; Jacholkowska, A.; Khélifi, B.; Komin, Nu-U.; Konopelko, A.; Latham, Ij J.; Le Gallou, R.; Lemière, A.; Lemoine-Goumard, M.; Leroy, N.; Lohse, T.; Marcowith, A.; Martin, Jm-M.; de Naurois, M.; Martineau-Huynh, O.; Masterson, C.; Puehlhofer, G.; McComb, Tj J. L.; Nolan, Sj J.; Noutsos, A.; Orford, Kj J.; Osborne, Jl L.; Ouchrif, M.; Panter, M.; Pelletier, G.; Pita, S.; Pühlhofer, G.; Punch, M.; Raubenheimer, Bc C.; Raue, M.; Raux, J.; Rayner, Sm M.; Reimer, A.; Reimer, O.; Ripken, J.; Rob, L.; Rolland, L.; Rowell, G.; Sahakian, V.; Saugé, L.; Schlenker, S.; Schlickeiser, R.; Schuster, C.; Voelk, H. J.; Schwanke, U.; Siewert, M.; Sol, H.; Wagner, H. J. S. J. Voelk; Spangler, D.; Steenkamp, R.; Stegmann, C.; Tavernet, Jp-P.; Terrier, R.; Théoret, Cg G.; Tluczykont, M.; Vasileiadis, G.; Venter, C.; Vincent, P.; Völk, Hj J.; Bernloehr, K.; Collaboration: F Aharonian, H. E. S. S.

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American Association for the Advancement of Science, Science, 5735(309), p. 746-749, 2005

DOI: 10.1126/science.1113764

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Discovery of very high energy gamma rays associated with an x-ray binary.

Journal article published in 2005 by Sj Wagner, S. J. Wagner, Ag G. Akhperjanian, Km-M. Aye, Ar R. Bazer-Bachi, L. O'c Drury, M. Beilicke, W. Benbow, D. Berge, F. Aharonian, P. Berghaus, K. Bernlöhr, H. J. Dickinson, C. Boisson, O. Bolz and other authors.

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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 gamma-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.

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Discovery of very high energy gamma rays associated with an x-ray binary.

Abstract