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Commissioning of FLAG: A phased array feed for the GBT

Published online by Cambridge University Press:  04 June 2018

K. M. Rajwade ,
N. M. Pingel ,
R. A. Black ,
M. Ruzindana ,
M. Burnett ,
B. Jeffs ,
K. Warnick ,
D. J. Pisano ,
D. R. Lorimer  and
R. M. Prestage
...Show all authors
K. M. Rajwade
Affiliation:
Department of Physics and Astronomy, West Virginia University Morgantown, WV 26505, USA email: kaustubh.rajwade@manchester.ac.uk Jodrell Bank Centre for Astrophysics, University of Manchester, Oxford Road, Manchester M193PL, UK
N. M. Pingel
Affiliation:
Department of Physics and Astronomy, West Virginia University Morgantown, WV 26505, USA email: kaustubh.rajwade@manchester.ac.uk
R. A. Black
Affiliation:
Department of Electrical Engineering, Brigham Young University, Provo, UT, USA
M. Ruzindana
Affiliation:
Department of Electrical Engineering, Brigham Young University, Provo, UT, USA
M. Burnett
Affiliation:
Department of Electrical Engineering, Brigham Young University, Provo, UT, USA
B. Jeffs
Affiliation:
Department of Electrical Engineering, Brigham Young University, Provo, UT, USA
K. Warnick
Affiliation:
Department of Electrical Engineering, Brigham Young University, Provo, UT, USA
D. J. Pisano
Affiliation:
Department of Physics and Astronomy, West Virginia University Morgantown, WV 26505, USA email: kaustubh.rajwade@manchester.ac.uk
D. R. Lorimer
Affiliation:
Department of Physics and Astronomy, West Virginia University Morgantown, WV 26505, USA email: kaustubh.rajwade@manchester.ac.uk
R. M. Prestage
Affiliation:
Green Bank Observatory, Green Bank, WV, USA
L. Hawkins
Affiliation:
Green Bank Observatory, Green Bank, WV, USA
J. Ray
Affiliation:
Green Bank Observatory, Green Bank, WV, USA
P. Marganian
Affiliation:
Green Bank Observatory, Green Bank, WV, USA
T. Chamberlin
Affiliation:
Green Bank Observatory, Green Bank, WV, USA
J. Ford
Affiliation:
Green Bank Observatory, Green Bank, WV, USA Steward Observatory, University of Arizona, Tuscon, AZ, USA
W. Shillue
Affiliation:
National Radio Astronomy Observatory, CDL, Charlottesville, VA, USA
D. A. Roshi
Affiliation:
National Radio Astronomy Observatory, CDL, Charlottesville, VA, USA
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Abstract

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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 ~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.

Keywords

instrumentation: miscellaneousstars: neutronpulsars: generalpulsars: individual (PSR B1933+16, PSR B1929+10, PSR B1937+21)
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 13 , Symposium S337: Pulsar Astrophysics the Next Fifty Years , September 2017 , pp. 398 - 399
Copyright
Copyright © International Astronomical Union 2018 

References

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