FSI Seminar Series:9/11/2024
Presentor: Dr. Jacob Turner, Green Bank Observatory.
Abstract: Rapidly rotating neutron stars, known as pulsars, are valuable tools for studying the time-evolving structure and behavior of the interstellar medium. By utilizing the many lines of sight through this medium afforded by the decades-long timing of many pulsars via pulsar timing arrays, we can begin to construct a comprehensive image of our galaxy's dynamics on astronomical unit-to-parsec scales. Unfortunately, the prioritization of timing resolution by pulsar timing arrays often results in insufficient frequency resolution to study the most scientifically interesting of these lines of sight. However, by processing pulsar data while taking advantage of the cyclostationary nature of their emission as viewed from Earth, we can achieve simultaneous high time and frequency resolution in these data while also improving the sensitivity of pulsar timing arrays to gravitational waves.