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Title: Discovery of very high energy gamma rays associated with an x-ray binary.
Authors: Aharonian, F
Akhperjanian, AG
Aye, KM
Bazer-Bachi, AR
Beilicke, M
Benbow, W
Berge, D
Berghaus, P
Bernlöhr, K
Boisson, C
Bolz, O
Borrel, V
Braun, I
Breitling, F
Brown, AM
Bussons Gordo J
Chadwick, PM
Chounet, LM
Cornils, R
Costamante, L
Degrange, B
Dickinson, HJ
Djannati-Ataï, A
Drury, LO
Dubus, G
Emmanoulopoulos, D
Espigat, P
Feinstein, F
Fleury, P
Fontaine, G
Fuchs, Y
Funk, S
Gallant, YA
Giebels, B
Gillessen, S
Glicenstein, JF
Goret, P
Hadjichristidis, C
Hauser, M
Heinzelmann, G
Henri, G
Hermann, G
Hinton, JA
Hofmann, W
Holleran, M
Horns, D
Jacholkowska, A
de Jager OC
Khélifi, B
Komin, N
Konopelko, A
Latham, IJ
Le Gallou R
Lemière, A
Lemoine-Goumard, M
Leroy, N
Lohse, T
Marcowith, A
Martin, JM
Martineau-Huynh, O
Masterson, C
McComb, TJ
de Naurois M
Nolan, SJ
Noutsos, A
Orford, KJ
Osborne, JL
Ouchrif, M
Panter, M
Pelletier, G
Pita, S
Pühlhofer, G
Punch, M
Raubenheimer, BC
Raue, M
Raux, J
Rayner, SM
Reimer, A
Reimer, O
Ripken, J
Rob, L
Rolland, L
Rowell, G
Sahakian, V
Saugé, L
Schlenker, S
Schlickeiser, R
Schuster, C
Schwanke, U
Siewert, M
Sol, H
Spangler, D
Steenkamp, R
Stegmann, C
Tavernet, JP
Terrier, R
Théoret, CG
Tluczykont, M
Vasileiadis, G
Venter, C
Vincent, P
Völk, HJ
Wagner, SJ
First Published: 29-Jul-2005
Citation: SCIENCE, 2005, 309 (5735), pp. 746-749
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.
DOI Link: 10.1126/science.1113764
eISSN: 1095-9203
Type: Journal Article
Appears in Collections:Published Articles, Dept. of Physics and Astronomy

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