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Journal Article

A method to search for long duration gravitational wave transients from isolated neutron stars using the generalized FrequencyHough

MPS-Authors

La Rosa,  Iuri
AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

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1810.09784.pdf
(Preprint), 3MB

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Citation

Miller, A., Astone, P., D'Antonio, S., Frasca, S., Intini, G., La Rosa, I., et al. (2018). A method to search for long duration gravitational wave transients from isolated neutron stars using the generalized FrequencyHough. Physical Review D, 98: 102004. doi:10.1103/PhysRevD.98.102004.


Cite as: http://hdl.handle.net/21.11116/0000-0002-74F5-7
Abstract
We describe a method to detect gravitational waves lasting $O(hours-days)$ emitted by young, isolated neutron stars, such as those that could form after a supernova or a binary neutron star merger, using advanced LIGO/Virgo data. The method is based on a generalization of the FrequencyHough (FH), a pipeline that performs hierarchical searches for continuous gravitational waves by mapping points in the time/frequency plane of the detector to lines in the frequency/spindown plane of the source. We show that signals whose spindowns are related to their frequencies by a power law can be transformed to coordinates where the behavior of these signals is always linear, and can therefore be searched for by the FH. We estimate the sensitivity of our search across different braking indices, and describe the portion of the parameter space we could explore in a search using varying fast Fourier Transform (FFT) lengths.