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  A comparison of methods for the detection of gravitational waves from unknown neutron stars

Walsh, S., Pitkin, M., Oliver, M., D'Antonio, S., Dergachev, V., Krolak, A., et al. (2016). A comparison of methods for the detection of gravitational waves from unknown neutron stars. Physical Review D, 94: 124010. doi:10.1103/PhysRevD.94.124010.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002A-E467-4 Version Permalink: http://hdl.handle.net/21.11116/0000-0003-0217-1
Genre: Journal Article

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 Creators:
Walsh, Sinead1, Author              
Pitkin, Matthew, Author
Oliver, Miquel, Author
D'Antonio, Sabrina, Author
Dergachev, Vladimir, Author
Krolak, Andrzej, Author
Astone, Pia, Author
Bejger, Michal, Author
Di Giovanni, Matteo, Author
Dorosh, Orest, Author
Frasca, Sergio, Author
Leaci, Paola, Author
Mastrogiovanni, Simone, Author
Miller, Andrew, Author
Palomba, Cristiano, Author
Papa, Maria Alessandra1, 2, Author              
Piccinni, Ornella J., Author
Riles, Keith, Author
Sauter, Orion, Author
Sintes, Alicia M., Author
Affiliations:
1Astrophysical and Cosmological Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_1933290              
2Searching for Continuous Gravitational Waves, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, Hannover, DE, ou_2630691              

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Free keywords: General Relativity and Quantum Cosmology, gr-qc, Astrophysics, Instrumentation and Methods for Astrophysics, astro-ph.IM
 Abstract: Rapidly rotating neutron stars are promising sources of continuous gravitational wave radiation for the LIGO and Virgo interferometers. The majority of neutron stars in our galaxy have not been identified with electromagnetic observations. All-sky searches for isolated neutron stars offer the potential to detect gravitational waves from these unidentified sources. The parameter space of these blind all-sky searches, which also cover a large range of frequencies and frequency derivatives, presents a significant computational challenge. Different methods have been designed to perform these searches within acceptable computational limits. Here we describe the first benchmark in a project to compare the search methods currently available for the detection of unknown isolated neutron stars. We employ a mock data challenge to compare the ability of each search method to recover signals simulated assuming a standard signal model. We find similar performance among the short duration search methods, while the long duration search method achieves up to a factor of two higher sensitivity. We find the absence of second derivative frequency in the search parameter space does not degrade search sensivity for signals with physically plausible second derivative frequencies. We also report on the parameter estimation accuracy of each search method, and the stability of the sensitivity in frequency, frequency derivative and in the presence of detector noise.

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 Dates: 2016-06-022016-06-1320162016
 Publication Status: Published in print
 Pages: 16 pages, 11 figures
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: arXiv: 1606.00660
URI: http://arxiv.org/abs/1606.00660
DOI: 10.1103/PhysRevD.94.124010
 Degree: -

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Title: Physical Review D
  Other : Phys. Rev. D.
Source Genre: Journal
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Publ. Info: Lancaster, Pa. : American Physical Society
Pages: - Volume / Issue: 94 Sequence Number: 124010 Start / End Page: - Identifier: ISSN: 0556-2821
CoNE: /journals/resource/111088197762258