The optimal schedule for pulsar timing array observations

TL;DR

This paper introduces computational methods to optimize pulsar timing array observation schedules, enhancing sensitivity to gravitational waves by tailoring observation times based on pulsar noise characteristics and instrument performance.

Contribution

It presents novel optimization techniques for scheduling pulsar observations, considering individual pulsar noise and instrument performance, applicable to single and multi-telescope arrays.

Findings

Optimized schedules improve gravitational wave detection sensitivity.

Scheduling depends on pulsar noise profiles and instrument capabilities.

Method for selecting the best pulsars for inclusion in arrays.

Abstract

In order to maximize the sensitivity of pulsar timing arrays to a stochastic gravitational wave background, we present computational techniques to optimize observing schedules. The techniques are applicable to both single and multi-telescope experiments. The observing schedule is optimized for each telescope by adjusting the observing time allocated to each pulsar while keeping the total amount of observing time constant. The optimized schedule depends on the timing noise characteristics of each individual pulsar as well as the performance of instrumentation. Several examples are given to illustrate the effects of different types of noise. A method to select the most suitable pulsars to be included in a pulsar timing array project is also presented.