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27 April 2024

» arxiv » 1710.9650

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Commissioning of FLAG: A phased array feed for the GBT
K. M. Rajwade ; N. M. Pingel ; R. A. Black ; M. Ruzindana ; M. Burnett ; B. Jeffs ; K. Warnick ; D. J. Pisano ; D. R. Lorimer ; R. M. Prestage ; L. Hawkins ; J. Ray ; P. Marganian ; T. Chamberlin ; J. Ford ; W. Shillue ; D. A. Roshi ;
Date:	26 Oct 2017
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.
Source:	arXiv, 1710.9650
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