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Parkes observations for project P897 semester 2016OCTS

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Title Parkes observations for project P897 semester 2016OCTS
 
Creator Matthew Kerr
 
Subject Astronomical and Space Sciences not elsewhere classified
 
Description Modulation of pulse times of arrival (TOAs) from pulsars often heralds excitement: planetary companions, neutron star free precession, and the poorly understood but crucially important process of magnetospheric state switching can all produce quasi-periodic TOA modulation. In a sample of 150 young pulsars, we have detected periodic modulation in six pulsars. We propose to obtain multi-epoch, deep, well-calibrated 10 cm pulse profiles to search for profile variability, particularly variability correlated with TOA modulation. The absence of such variation may lend credence to a planet interpretation, while detection will help characterize the magnetospheric states and determine if free precession plays a role. Because the pulsars are largely southern sky objects, and because the 10cm band is largely free from RFI and scattering, Parkes is uniquely capable to deliver this science.
 
Publisher CSIRO
 
Contributor Simon Johnston
George Hobbs
Ryan Shannon
 
Date 2017-05-26
 
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Identifier csiro:P897-2016OCTS
 
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