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The 2005 october multiwavelength campaign of GRS 1915+105

  • Y. Ueda
  • , R. Ishioka
  • , K. Sekiguchi
  • , M. Ribo
  • , J. Rodriguez
  • , S. Chaty
  • , J. Greiner
  • , G. Sala
  • , Y. Fuchs
  • , P. Goldoni
  • , S. Covino
  • , G. G. Pooley
  • , P. Edwards
  • , A. Tzioumis
  • , H. Lehto
  • , E. Gerard
  • , P. Colom
  • , J. Martin
  • , S. A. Trushkin
  • , A. J. Castro-Tirado
  • D. Hannikainen, H. Sudo, M. Honma, F. Iwamuro, K. Kubuta, K. Yamaoka, C. Done, S. Naik, Y. Fukazawa, L. Angelini, H. Awaki, K. Ebisawa, K. Iwasawa, N. Kawai, K. Kinugasa, M. Kokubun, T. Kotani, A. Kubota, T. Murakami, M. Namiki, H. Takahashi, T. Yaqoob, D. Yonetoku, A. Yoshida
  • Kyoto University
  • NAOJ
  • University of Barcelona
  • Institut Pierre Simon Laplace, CNRS and CEA
  • Laboratoire de Probabilités et Modèles Aléatoires
  • Max Planck Institut für Extraterrestrische Physik
  • Astroparticule and Cosmol APC
  • Istituto di Astrofisica e Planetologia Spaziali (IAPS)
  • University of Cambridge
  • Commonwealth Scientific and Industrial Research Organization
  • University of Turku
  • Sorbonne Univ.
  • SAO
  • Instituto de Astrofísica de Andalucía-CSIC
  • University of Helsinki
  • Gifu University
  • National Astronomical Observatory
  • Aoyama Gakuin University
  • Durham University
  • ISAS/JAXA
  • Hiroshima University
  • GSFC Laboratory for Atmopsheres
  • Ehime University
  • Tokyo Institute of Technology
  • Gunma Astronomical Observatory
  • University of Tokyo
  • Riken
  • Kanazawa University
  • Osaka University
  • Johns Hopkins University

Résultats de recherche: Contribution à un journalArticle de conférenceRevue par des pairs

Résumé

We report the first results of a large multiwavelength campaign of GRS 1915+105 performed between 2005 October 16 to October 18 with Suzaku, INTEGRAL, RXTE, Swift, Spitzer, and ground observatories including Subaru, ESO/NTT, REM (infrared), VLA, ATCA, Nancay, Ryle, and RATAN (radio). GRS 1915+105 was firstly in the stable state with a 6 Hz QPO but then entered into the oscillation phase identified as Class θ. The Suzaku spectra in the 1-80 keV band are very soft, approximated by a photo index of 3-3.8 with varying iron-K features in different Xray states. The simultaneous Subaru and X-ray light curves in the oscillation phase indicate that infrared flares occur after the X-ray dip with variable time delay. This result strongly suggests that the disc transition from State C to State A triggers the ejection of jet, which eventually produces infrared/radio flares by internal shock.

langue originaleAnglais
journalInternational Conference Recent Advances in Natural Language Processing, RANLP
étatPublié - 1 janv. 2006
Modification externeOui
Evénement6th Microquasar Workshop: Microquasars and Beyond, MQW 2006 - Como, Italie
Durée: 18 sept. 200622 sept. 2006

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