Tau.Neutrino said:
Canada’s CHIME telescope detects second repeating fast radio burst
Scientists have found the second repeating fast radio burst (FRB) ever recorded. The discovery of the extragalactic signal is among the first, eagerly awaited results from the Canadian Hydrogen Intensity Mapping Experiment (CHIME). The repeating FRB was one of a total of 13 bursts detected over a period of just three weeks during the summer of 2018, while CHIME was in its pre-commissioning phase.
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> Before CHIME began to gather data, some scientists wondered if the range of radio frequencies the telescope had been designed to detect would be too low to pick up fast radio bursts. Most of the FRBs previously detected had been found at frequencies near 1400 MHz, well above the Canadian telescope’s range of 400 MHz to 800 MHz. The CHIME team’s results — published January 9 in two papers in Nature and presented the same day at the American Astronomical Society meeting in Seattle — settled these doubts, with the majority of the 13 bursts being recorded well down to the lowest frequencies in CHIME’s range. In some of the 13 cases, the signal at the lower end of the band was so bright that it seems likely other FRBs will be detected at frequencies even lower than CHIME’s minimum of 400 MHz.
I wonder what frequencies other radio telescopes operate at.
SKA. 350 MHz to 4 GHz. Exactly covering the right range for detecting FRBs.
Parkes. 700 to 764 MHz, 1.2 to 1.8 GHz, 2.15 to 3.6 GHz and higher.
VLA. 236 to 492 MHz.
Arecibo. 50 MHz to 10 GHz. That’s wide!