CSIRO's ASKAP Radio Telescope

CSIRO's new ASKAP antennas at the Murchison Radio-astronomy Observatory. Credit: CSIRO

ASKAP is designed to be a high speed survey instrument with high dynamic range. This requires an extremely wide field-of-view interferometer with Phased Array Feeds (PAFs). The PAF has a total of 188 elements, 94 in each of two polarizations.

The specification for ASKAP is:

  • A total collecting area of approximately 4,000 square metres, from 36 antennas each 12 metres in diameter
  • System temperature less than 50 K
  • Frequency range from 700 MHz to 1.8 GHz
  • 300 MHz instantaneous bandwidth
  • 36 independent beams, each of about 1 square degree, yield overlapping to a 30 square degree field-of-view at 1.4 GHz
  • Maximum baseline of approximately 6 km
  • Full cross-correlation of all antennas
  • Possible remote array station capability located in NSW, approximately 3,000 km from the core site.

Early science results with ASKAP

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Latest News

Close up of a radio receiver. Bird of paradise constellation sings a sweet song for ASKAP
April 2016: The first ever 36-beam image has been produced during phased array feed (PAF) commissioning activities for CSIRO’s Australian SKA Pathfinder telescope.
Wire-like antennas. Maximising science impact with the SKA in Australia
April 2016: The second annual OzSKA meeting was held to discuss developments in the Square Kilometre Array (SKA) – with a focus not only on astronomy, but also technological development and the evolution of the SKA Organisation itself.
Parkes telescope under a starry sky. Parkes telescope granted 'SKA pathfinder' status
April 2016: CSIRO’s iconic Parkes radio telescope has been granted the status of ‘SKA pathfinder’ by the Square Kilometre Array Organisation, on the basis of its role in testing innovative new receiver systems for radio astronomy.

 

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