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

Graph showing results of latest PAF measurements. Credit: CSIRO ASKAP PAF performance signficantly improved with Mk II system
February 2015: On-dish measurements from CSIRO’s newest phased-array feed (PAF) have confirmed low-noise performance across the entire ASKAP frequency band.
The new 150 square degree image. Credit: CSIRO Search for transients aids BETA commissioning
January 2015: To demonstrate the rapid, wide-area survey capability of the ASKAP telescope, a new image of the Tucana constellation has been produced, which is over three times the size of previous efforts.
An artist's impression of SKA and ASKAP antennas at the MRO. Advancing astrophysics with the SKA
January 2015: A number of science papers that form the basis of the new SKA science book, Advancing Astrophysics with the Square Kilometre Array, are being published on the arXiv.org astrophysics pre-print website.

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