Sources of radiation from neutron stars
Bernard F Schutz

TL;DR
This paper reviews potential sources of gravitational radiation from neutron stars, discusses search strategies for different types of sources, and proposes efficient, parallelizable methods for all-sky surveys to detect unseen neutron stars.
Contribution
It introduces a new hierarchical search method that reduces computational load and enhances parallel processing for detecting gravitational waves from neutron stars.
Findings
Hierarchical methods improve sensitivity in gravitational wave searches.
Proposed Fourier-transform replacement reduces floating-point operations.
Method is highly parallelizable for large parameter space searches.
Abstract
I give a brief introduction to the problem of detecting gravitational radiation from neutron stars. After a review of the mechanisms by which such stars may produce radiation, I consider the different search strategies appropriate to the different kinds of sources: isolated known pulsars, neutron stars in binaries, and unseen neutron stars. The problem of an all-sky survey for unseen stars is the most taxing one that we face in analysing data from interferometers. I describe the kinds of hierarchical methods that are now being investigated to reach the maximal sensitivity, and I suggest a replacement for standard Fourier-transform search methods that requires fewer floating-point operations for Fourier-based searches over large parameter spaces, and in addition is highly parallelizable, working just as well on a loosely coupled network of workstations as on a tightly coupled parallel…
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Taxonomy
TopicsPulsars and Gravitational Waves Research · Geophysics and Gravity Measurements · Inertial Sensor and Navigation
