Inferring pulsar null fraction using Gaussian mixtures

Mihir Arjunwadkar1*, Kaustubh Rajwade2 and Yashwant Gupta3
1Centre for Modeling and Simulation, University of Pune, Pune 411007 India
2West Virginia University, Morgantown, WV 26506 USA
3National Centre for Radio Astrophysics, University of Pune Campus, Pune 411007 India

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Abstract

We present a Gaussian-mixture-based rigorous statistical methodology for estimating the null fraction of a pulsar, and validate it against a number of data sets from well-characterized regular pulsars.



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Keywords : pulsar nulling – null fraction – Gaussian mixture models