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Title: Bright microwave pulses from PSR B0531+21 observed with a prototype transient survey receiver

Recent discoveries of transient radio events have renewed interest in time-variable astrophysical phenomena. Many radio transient events are rare, requiring long observing times for reliable statistical study. The National Aeronautics and Space Administration/Jet Propulsion Laboratory's Deep Space Network (DSN) tracks spacecraft nearly continuously with 13 large-aperture, low system temperature radio antennas. During normal spacecraft operations, the DSN processes only a small fraction of the pre-detection bandwidth available from these antennas; any information in the remaining bandwidth, e.g., from an astronomical source in the same antenna beam as the spacecraft, is currently ignored. As a firmware modification to the standard DSN tracking receiver, we built a prototype receiver that could be used for astronomical transient surveys. Here, we demonstrate the receiver's utility through observations of bright pulses from the Crab pulsar and describe attributes of potential transient survey observations piggybacking on operational DSN tracks.
Authors:
; ; ; ;  [1] ; ;  [2]
  1. Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91125 (United States)
  2. Department of Physics and Astronomy, University of Texas at Brownsville, Brownsville, TX 78520 (United States)
Publication Date:
OSTI Identifier:
22340277
Resource Type:
Journal Article
Resource Relation:
Journal Name: Astronomical Journal (New York, N.Y. Online); Journal Volume: 147; Journal Issue: 5; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ANTENNAS; APERTURES; ASTROPHYSICS; BEAMS; DETECTION; GALAXIES; GAS UTILITIES; MICROWAVE RADIATION; MODIFICATIONS; NASA; PARTICLE TRACKS; PULSARS; PULSES; SPACE; STARS