Improved short-segment detection statistic for continuous gravitational waves

Abstract

Continuous gravitational waves represent one of the long-sought types of signals that have yet to be detected. Due to their small amplitude, long observational datasets (months-years) have to be analyzed together, thereby vastly increasing the computational cost of these searches. All-sky searches face the most severe computational obstacles, especially searches for sources in unknown binary systems, which need to break the data into very short segments in order to be computationally feasible. In this paper, we present a new detection statistic that improves sensitivity by up to 19% compared to the standard $\mathcal{F}$-statistic for segments shorter than a few hours.

11 pages

References in corpus (3)

• Postprocessing methods used in the search for continuous gravitational-wave signals from the Galactic Center
• Geometric Approach to Analytic Marginalisation of the Likelihood Ratio for Continuous Gravitational Wave Searches
• Constraints on r-modes and mountains on millisecond neutron stars in binary systems

Cited by in corpus (2)

• Searches for Continuous-Wave Gravitational Radiation
• Improved all-sky search method for continuous gravitational waves from unknown neutron stars in binary systems