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Linking Long- and Short-Term Emission Variability in Pulsars

Authors :
Brook, Paul
Karastergiou, Aris
Johnston, Simon
Publication Year :
2019

Abstract

It is now known that the emission from radio pulsars can vary over a wide range of timescales, from fractions of seconds to decades. However, it is not yet known if long- and short-term emission variability are caused by the same physical processes. It has been observed that long-term emission variability is often correlated with rotational changes in the pulsar. We do not yet know if the same is true of short-term emission variability, as the rotational changes involved cannot be directly measured over such short timescales. To remedy this, we propose a continuous pulsar monitoring technique that permits the statistical detection of any rotational changes in nulling and mode-changing pulsars with certain properties. Using a simulation, we explore the range of pulsar properties over which such an experiment would be possible.<br />Comment: 11 pages, 8 figures, 2 tables

Details

Database :
arXiv
Publication Type :
Report
Accession number :
edsarx.1904.10989
Document Type :
Working Paper
Full Text :
https://doi.org/10.1093/mnras/stz2092