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

A. A. Abdo; M. Ackermann; M. Ajello; M. Axelsson; L. Baldini; J. Ballet; G. Barbiellini; D. Bastieri; B. M. Baughman; K. Bechtol; R. Bellazzini; B. Berenji; R. D. Blandford; E. D. Bloom; E. Bonamente; A. W. Borgland; A. Brez; M. Brigida; P. Bruel; T. H. Burnett; S. Buson; G. A. Caliandro; P. A. Caraveo; J. M. Casandjian; C. Cecchi; O. Celik; S. Chaty; C.C. Cheung; J. Chiang; S. Ciprini; R. Claus; J. Cohen-Tanugi; L.R. Cominski; J. Conrad; S. Corbel; R. Corbet; C. D. Dermer; F. De Palma; S. W. Digel; E. Do Couto E Silva; P.S. Drell; R. Dubois; G. Dubus; D. Dumora; C. Farnier; C. Favuzzi; S.J. Fegan; W. B. Focke; P. Fortin; M. Frailis; P. Fusco; F. Gargano; N. Gehrels; S. Germani; G. Giavitto; B. Giebels; N. Giglietto; F. Giordano; T. Glanzman; G. Godfrey; I. A. Grenier; M.-H. Grondin; J. E. Grove; L. Guillemot; S. Guiriec; Y. Hanabata; A. K. Harding; M. Hayashida; E. Hays; A.B. Hill; L. Hjalmarsdotter; D. Horan; R. E. Hughes; M.S. Jackson; G. Jóhannesson; A. S. Johnson; T. J. Johnson; W. N. Johnson; T. Kamae; H. Katagiri; N. Kawai; M. Kerr; J. Knödlseder; M. L. Kocian; E. Koerding; M. Kuss; J. Lande; L. Latronico; M. Lemoine-Goumard; F. Longo; F. Loparco; B. Lott; M.N. Lovellette; P. Lubrano; G. M. Madejski; A. Makeev; L. Marchand; M. Marelli; W. Max-Moerbeck; M.N. Mazziotta; N. Mccoll; J.E. Mcenery; C. Meurer; P.F. Michelson; S. Migliari; W. Mitthumsiri; T. Mizuno; C. Monte; M.E. Monzani; A. Morselli; I.V. Moskalenko; S. Murgia; P.L. Nolan; J.P. Norris; E. Nuss; T. Ohsugi; N. Omodei; R.A. Ong; J.F. Ormes; D. Paneque; D. Parent; V. Pelassa; M. Pepe; M. Pesce-Rollins; F. Piron; G. Pooley; T.A. Porter; K. Pottschmidt; S. Rainò; R. Rando; P.S. Ray; M. Razzano; N. Rea; A. Readhead; A. Reimer; O. Reimer; J.L. Richards; L. S. Rochester; J. Rodriguez; A. Y. Rodriguez; R.W. Romani; F. Ryde; H.F-W. Sadrosinski; A. Sander; P.M. Saz Parkinson; G. Sgro; E. J. Siskind; D.A. Smith; P.D. Smith; P. Spinelli; Jean-Luc Starck; M. Stevenson; M.S. Strickman; H. Takahashi; Y. Tanaka; J. B. Thayer; D.J. Thompson; L. Tibaldo; J.A. Tomsick; D. F. Torres; G. Tosti; A. Tramacere; Y. Uchiyama; T.L. Usher; V. Vasileiou; N. Vilchez; V. Vitale; A. P. Waite; P. Wang; J. Wilms; B. L. Winer; K. S. Wood; T. Ylinen; M. Ziegler

doi:10.1126/science.1182174

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

A. A. Abdo M. Ackermann M. Ajello M. Axelsson L. Baldini J. Ballet ¹ G. Barbiellini D. Bastieri B. M. Baughman K. Bechtol R. Bellazzini B. Berenji R. D. Blandford E. D. Bloom E. Bonamente A. W. Borgland A. Brez M. Brigida P. Bruel ² T. H. Burnett S. Buson G. A. Caliandro P. A. Caraveo J. M. Casandjian ¹ C. Cecchi O. Celik S. Chaty ¹ C.C. Cheung J. Chiang S. Ciprini R. Claus J. Cohen-Tanugi ³ L.R. Cominski J. Conrad S. Corbel ¹ R. Corbet C. D. Dermer F. De Palma S. W. Digel E. Do Couto E Silva P.S. Drell R. Dubois G. Dubus ⁴ D. Dumora ⁵ C. Farnier ³ C. Favuzzi S.J. Fegan ² W. B. Focke P. Fortin ² M. Frailis P. Fusco F. Gargano N. Gehrels S. Germani G. Giavitto B. Giebels ² N. Giglietto F. Giordano T. Glanzman G. Godfrey I. A. Grenier ¹ M.-H. Grondin ⁵ J. E. Grove L. Guillemot ⁵ S. Guiriec ³ Y. Hanabata A. K. Harding M. Hayashida E. Hays A.B. Hill ⁴ L. Hjalmarsdotter D. Horan ² R. E. Hughes M.S. Jackson G. Jóhannesson A. S. Johnson T. J. Johnson W. N. Johnson T. Kamae H. Katagiri N. Kawai M. Kerr J. Knödlseder ⁶ M. L. Kocian E. Koerding M. Kuss J. Lande L. Latronico M. Lemoine-Goumard ⁵ F. Longo F. Loparco B. Lott ⁵ M.N. Lovellette P. Lubrano G. M. Madejski A. Makeev L. Marchand M. Marelli W. Max-Moerbeck M.N. Mazziotta N. Mccoll J.E. Mcenery C. Meurer P.F. Michelson S. Migliari W. Mitthumsiri T. Mizuno C. Monte M.E. Monzani A. Morselli I.V. Moskalenko S. Murgia P.L. Nolan J.P. Norris E. Nuss ³ T. Ohsugi N. Omodei R.A. Ong J.F. Ormes D. Paneque D. Parent ⁵ V. Pelassa ³ M. Pepe M. Pesce-Rollins F. Piron ³ G. Pooley T.A. Porter K. Pottschmidt S. Rainò R. Rando P.S. Ray M. Razzano N. Rea A. Readhead A. Reimer O. Reimer J.L. Richards L. S. Rochester J. Rodriguez ¹ A. Y. Rodriguez R.W. Romani F. Ryde H.F-W. Sadrosinski A. Sander P.M. Saz Parkinson G. Sgro E. J. Siskind D.A. Smith ⁵ P.D. Smith P. Spinelli Jean-Luc Starck ¹ M. Stevenson M.S. Strickman H. Takahashi Y. Tanaka J. B. Thayer ¹ D.J. Thompson L. Tibaldo ¹ J.A. Tomsick D. F. Torres G. Tosti A. Tramacere Y. Uchiyama T.L. Usher V. Vasileiou N. Vilchez ⁶ V. Vitale A. P. Waite P. Wang J. Wilms B. L. Winer K. S. Wood T. Ylinen M. Ziegler

1 AIM - UMR 7158 - Astrophysique Interactions Multi-échelles

2 LLR - Laboratoire Leprince-Ringuet

3 LPTA - Laboratoire de Physique Théorique et Astroparticules

4 LAOG - Laboratoire d'Astrophysique de Grenoble

5 CENBG - Centre d'Etudes Nucléaires de Bordeaux Gradignan

6 CESR - Centre d'étude spatiale des rayonnements

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.

Document type :

Journal articles

Science, American Association for the Advancement of Science, 2009, 326, pp.1512-1516. <10.1126/science.1182174>

Domain :

Physics / Astrophysics / High Energy Astrophysical Phenomena

Sciences of the Universe / Astrophysics / High Energy Astrophysical Phenomena

http://hal.in2p3.fr/in2p3-00444982
Contributor : Virginie Mas <>
Submitted on : Thursday, January 7, 2010 - 3:38:44 PM
Last modification on : Thursday, January 7, 2010 - 3:43:48 PM

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

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