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A powerful bursting radio source towards the Galactic Centre

Author

Listed:
  • Scott D. Hyman

    (Sweet Briar College)

  • T. Joseph W. Lazio

    (Naval Research Laboratory, Code 7213)

  • Namir E. Kassim

    (Naval Research Laboratory, Code 7213)

  • Paul S. Ray

    (Naval Research Laboratory)

  • Craig B. Markwardt

    (NASA Goddard Space Flight Center)

  • Farhad Yusef-Zadeh

    (Northwestern University)

Abstract

New radio source A transient radio source with unique properties has been discovered close the centre of our Galaxy. Its powerful radio bursts, clock-like regularity and unusual timescale imply a temperature greater than trillions of degrees. This high temperature in turn implies that the radiation emitted from all parts of the radio source is ‘coherent’ — that is, it is almost entirely of a single wavelength. This combination of properties makes it a hitherto unknown type of radio source, though it may not be ‘unique’ for long. The discovery was made possible by a new observational strategy, wide-field imaging at low frequencies, which can be expected to come up with more intriguing sources in future.

Suggested Citation

  • Scott D. Hyman & T. Joseph W. Lazio & Namir E. Kassim & Paul S. Ray & Craig B. Markwardt & Farhad Yusef-Zadeh, 2005. "A powerful bursting radio source towards the Galactic Centre," Nature, Nature, vol. 434(7029), pages 50-52, March.
    • Handle: RePEc:nat:nature:v:434:y:2005:i:7029:d:10.1038_nature03400
    DOI: 10.1038/nature03400
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