A transient large-scale relativistic radio jet from GX 339-4

E. Gallo, S. Corbel, R. P. Fender, T. J. Maccarone, A. K. Tzioumis

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We report on the formation and evolution of a large-scale, synchrotron-emitting jet from the black hole candidate and X-ray binary system GX 339-4. In 2002 May, the source moved from a low/hard to a very high X-ray state, contemporaneously exhibiting a very bright optically thin radio flare. Further observations with the Australia Telescope Compact Array have tracked the formation of a collimated structure extending to about 12 arcsec, with apparent velocity greater than 0.9c. The luminosity of the outflow seems to be rapidly decreasing; these observations confirm that transient large-scale jets are likely to be common events triggered by X-ray state transitions in black hole X-ray binaries.

Original languageEnglish
Pages (from-to)L52-L56
JournalMonthly Notices of the Royal Astronomical Society
Issue number3
StatePublished - Jan 21 2004


  • Accretion, accretion discs
  • Binaries: general
  • ISM: jets and outflows
  • Radio continuum: stars
  • X-rays: individual: GX 339-4
  • X-rays: stars


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