[Online] How to make the most of pulsar-timing observations for dark matter

by Prof. Federico Urban (Prague, Inst. Phys.)

Tuesday 9 Apr 2024, 16:00 → 17:30 Asia/Seoul

Title: How to make the most of pulsar-timing observations for dark matter

Speaker: Prof. Federico Urban (Prague, Inst. Phys.)

Abstract: Binary pulsars have been shown to be promising detectors of ultra-light dark matter because dark matter perturbs their orbital motion, and therefore the pulses' times-of-arrival. In this talk I will review a new, two-step, bayesian method that enables us to compute semi-analytically the sensitivity of pulsar-timing data to ultra-light dark matter, and apply this method to the case of a linearly-coupled, scalar field. We find that, with next-generation radio observatories, this method will give the best constraints on the ultra-light dark matter coupling in a range of frequencies beyond the Nyquist frequency of pulsar-timing arrays.
 

Zoom link: https://us06web.zoom.us/j/81699651380?pwd=YOWyMpBczgR90jucQ22ZaCy8SsAxfU.1