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23nd of May 2017
The detection of an extremely bright fast radio burst in a phased array feed survey
by Keith Bannister (CASS)
ASKAP's first FRB! FRB170107 was discovered after just 3.5 days of observing with 8 of ASKAP's 36 antennas. We used a fly's-eye mode where each antenna pointed at a different part of the sky. This yielded an instantaneous field of view of 240 square degrees, equivalent to about 1000 full moons! The figure shows the FRB on the top-left, and the dynamic spectrum on the bottom left. The right panel shows the 36 beams of ASKAP antenna number 5 (named Gagurla in the local Wadjarri language) at the time the FRB occurred, overlaid on an NVSS map. The red smudge is the uncertainty region of the FRB position. Thanks to the ASKAP's phased-array-feed, the FRB was detected in multiple beams. Using this fact we could constrain it's position to a 10 arcminute region, much better than is usually possible with even larger telescopes. The full moon is shown to scale.

Reference: Bannister et al. 2017, ApJ Letters 841, xxx. - More infomation ASKAP telescope to rule radio-burst hunt (phys.org), ASKAP telescope speeds up the hunt for new Fast Radio Bursts (The Conversation), CSIRO's ASKAP telescope detects fast radio burst in just four days of operation (SMH)

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