A 10-hour, seven-beam phased array feed pilot survey at Green Bank found no new pulsars or fast radio bursts, and reports a 90% upper limit of 1.3e6 FRBs per day per sky above 0.36 Jy ms.
Commissioning of FLAG: A phased array feed for the GBT
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abstract
Phased Array Feed (PAF) technology is the next major advancement in radio astronomy in terms of combining high sensitivity and large field of view. The Focal L-band Array for the Green Bank Telescope (FLAG) is one of the most sensitive PAFs developed so far. It consists of 19 dual-polarization elements mounted on a prime focus dewar resulting in seven beams on the sky. Its unprecedented system temperature of$\sim$17 K will lead to a 3 fold increase in pulsar survey speeds as compared to contemporary single pixel feeds. Early science observations were conducted in a recently concluded commissioning phase of the FLAG where we clearly demonstrated its science capabilities. We observed a selection of normal and millisecond pulsars and detected giant pulses from PSR B1937+21.
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A 21 cm pilot survey for pulsars and transients using the Focal L-Band Array for the Green Bank Telescope
A 10-hour, seven-beam phased array feed pilot survey at Green Bank found no new pulsars or fast radio bursts, and reports a 90% upper limit of 1.3e6 FRBs per day per sky above 0.36 Jy ms.