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RadioNet Workshop on Future Trends in Radio Astronomy Instrumentation

21-22 September 2020
Max Planck Institute for Radio Astronomy
Europe/Berlin timezone
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Contribution

Max Planck Institute for Radio Astronomy -
Session 6

Efficient wide-area sky monitoring

Content

The enigmatic Fast Radio Bursts (FRBs) are motivating new instruments to monitor large areas of the sky with high time resolution. With a field of view of about 200 square degrees, CHIME is currently finding several per day. Gravitationally lensed FRBs could be used as a new cosmological probe, but this requires the continuous monitoring of even wider areas. Regular antenna arrays can be combined with extremely efficient Fast-Fourier-Transform beamformers to map good fractions of the sky with full time resolution. We discuss some options, including the (mis-)use of existing phased-array-feed receivers as aperture arrays.