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Rui Luo (CASS/CSIRO, Marsfield)

Rui Luo Colloquium: Measurement of the luminosity function of Fast Radio Bursts

The Australia Telescope National Facility Colloquium
15:00-16:00 Wed 04 Sep 2019

Marsfield Lecture Theatre


Fast Radio Bursts (FRBs) are millisecond radio flashes with unknown origins yet. In this talk, I will present our work on the measurement of FRB luminosity function (LF). We built a robust Bayesian framework to measure the LF parameters following a Schechter function. In this framework, we consider survey sensitivities, telescope beam response, event rate modelling, and dispersion measure (DM) from Milky Way / IGM / host galaxies / local source. In particular, we simulate the DMs in a large sample of host galaxies and obtain the DM distribution function for different types of galaxies. We measure the FRB LF using 46 FRBs from 7 surveys. The measured event rate density in a broad luminosity range implies the possibility of FRB multiple classes. In addition, we calculate the detection rates of different telescopes and show our optimal searching plan for single dish telescopes.


Andrew Cameron

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