Microquasars are accreting black holes or neutron stars in binary systems with associated relativistic jets. Despite their frequent outburst activity, they have never been unambiguously detected emitting high-energy gamma rays. The Fermi Large Area Telescope (LAT) has detected a variable high-energy source coinciding with the position of the x-ray binary and microquasar Cygnus X-3. Its identification with Cygnus X-3 is secured by the detection of its orbital period in gamma rays, as well as the correlation of the LAT flux with radio emission from the relativistic jets of Cygnus X-3. The gamma-ray emission probably originates from within the binary system, opening new areas in which to study the formation of relativistic jets.

Modulated High-Energy Gamma-Ray Emission from the Microquasar Cygnus X-3

BALDINI, LUCA;RAZZANO, MASSIMILIANO;
2009-01-01

Abstract

Microquasars are accreting black holes or neutron stars in binary systems with associated relativistic jets. Despite their frequent outburst activity, they have never been unambiguously detected emitting high-energy gamma rays. The Fermi Large Area Telescope (LAT) has detected a variable high-energy source coinciding with the position of the x-ray binary and microquasar Cygnus X-3. Its identification with Cygnus X-3 is secured by the detection of its orbital period in gamma rays, as well as the correlation of the LAT flux with radio emission from the relativistic jets of Cygnus X-3. The gamma-ray emission probably originates from within the binary system, opening new areas in which to study the formation of relativistic jets.
2009
Abdo, Aa; Ackermann, M; Ajello, M; Axelsson, M; Baldini, Luca; Ballet, J; Barbiellini, G; Bastieri, D; Baughman, Bm; Bechtol, K; Bellazzini, R; Berenji, B; Blandford, Rd; Bloom, Ed; Bonamente, E; Borgland, Aw; Brez, A; Brigida, M; Bruel, P; Burnett, Th; Buson, S; Caliandro, Ga; Cameron, Ra; Caraveo, Pa; Casandjian, Jm; Cecchi, C; Celik, O; Chaty, S; Cheung, Cc; Chiang, J; Ciprini, S; Claus, R; Cohen Tanugi, J; Cominsky, Lr; Conrad, J; Corbel, S; Corbet, R; Dermer, Cd; de Palma, F; Digel, Sw; Silva, Ede; Drell, Ps; Dubois, R; Dubus, G; Dumora, D; Farnier, C; Favuzzi, C; Fegan, Sj; Focke, Wb; Fortin, P; Frailis, M; Fusco, P; Gargano, F; Gehrels, N; Germani, S; Giavitto, G; Giebels, B; Giglietto, N; Giordano, F; Glanzman, T; Godfrey, G; Grenier, Ia; Grondin, Mh; Grove, Je; Guillemot, L; Guiriec, S; Hanabata, Y; Harding, Ak; Hayashida, M; Hays, E; Hill, Ab; Hjalmarsdotter, L; Horan, D; Hughes, Re; Jackson, Ms; Johannesson, G; Johnson, As; Johnson, Tj; Johnson, Wn; Kamae, T; Katagiri, H; Kawai, N; Kerr, M; Knodlseder, J; Kocian, Ml; Koerding, E; Kuss, M; Lande, J; Latronico, L; Lemoine Goumard, M; Longo, F; Loparco, F; Lott, B; Lovellette, Mn; Lubrano, P; Madejski, Gm; Makeev, A; Marchand, L; Marelli, M; Max Moerbeck, W; Mazziotta, Mn; Mccoll, N; Mcenery, Je; Meurer, C; Michelson, Pf; Migliari, S; Mitthumsiri, W; Mizuno, T; Monte, C; Monzani, Me; Morselli, A; Moskalenko, Iv; Murgia, S; Nolan, Pl; Norris, Jp; Nuss, E; Ohsugi, T; Omodei, N; Ong, Ra; Ormes, Jf; Paneque, D; Parent, D; Pelassa, V; Pepe, M; Pesce Rollins, M; Piron, F; Pooley, G; Porter, Ta; Pottschmidt, K; Raino, S; Rando, R; Ray, Ps; Razzano, Massimiliano; Rea, N; Readhead, A; Reimer, A; Reimer, O; Richards, Jl; Rochester, Ls; Rodriguez, J; Rodriguez, Ay; Romani, Rw; Ryde, F; Sadrozinski, Hfw; Sander, A; Parkinson, Pms; Sgro, C; Siskind, Ej; Smith, Da; Smith, Pd; Spinelli, P; Starck, Jl; Stevenson, M; Strickman, Ms; Suson, Dj; Takahashi, H; Tanaka, T; Thayer, Jb; Thompson, Dj; Tibaldo, L; Tomsick, Ja; Torres, Df; Tosti, G; Tramacere, A; Uchiyama, Y; Usher, Tl; Vasileiou, V; Vilchez, N; Vitale, V; Waite, Ap; Wang, P; Wilms, J; Winer, Bl; Wood, Ks; Ylinen, T; Ziegler, M.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11568/134774
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