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  Fully coherent follow-up of continuous gravitational-wave candidates

Shaltev, M., & Prix, R. (2013). Fully coherent follow-up of continuous gravitational-wave candidates. Physical Review D, 87: 084057. doi:10.1103/PhysRevD.87.084057.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-000E-FD0F-3 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-000E-FD10-E
Genre: Journal Article

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1303.2471 (Preprint), 2MB
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 Creators:
Shaltev, Miroslav1, Author              
Prix, Reinhard1, Author              
Affiliations:
1Observational Relativity and Cosmology, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_24011              

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Free keywords: General Relativity and Quantum Cosmology, gr-qc
 Abstract: The search for continuous gravitational waves from unknown isolated sources is computationally limited due to the enormous parameter space that needs to be covered and the weakness of the expected signals. Therefore semi-coherent search strategies have been developed and applied in distributed computing environments such as Einstein@Home, in order to narrow down the parameter space and identify interesting candidates. However, in order to optimally confirm or dismiss a candidate as a possible gravitational-wave signal, a fully-coherent follow-up using all the available data is required. We present a general method and implementation of a direct (2-stage) transition to a fully-coherent follow-up on semi-coherent candidates. This method is based on a grid-less Mesh Adaptive Direct Search (MADS) algorithm using the F-statistic. We demonstrate the detection power and computing cost of this follow-up procedure using extensive Monte-Carlo simulations on (simulated) semi-coherent candidates from a directed as well as from an all-sky search setup.

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 Dates: 2013-03-112013
 Publication Status: Published in print
 Pages: 12 pages, 5 figures
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: arXiv: 1303.2471
DOI: 10.1103/PhysRevD.87.084057
 Degree: -

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Title: Physical Review D
  Other : Phys. Rev. D.
Source Genre: Journal
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Publ. Info: Lancaster, Pa. : Published for the American Physical Society by the American Institute of Physics
Pages: - Volume / Issue: 87 Sequence Number: 084057 Start / End Page: - Identifier: ISSN: 0556-2821
CoNE: /journals/resource/111088197762258