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  Fully coherent follow-up of continuous gravitational-wave candidates: an application to Einstein@Home results

Shaltev, M., Leaci, P., Papa, M. A., & Prix, R. (2014). Fully coherent follow-up of continuous gravitational-wave candidates: an application to Einstein@Home results. Physical Review D, 89: 124030. doi:10.1103/PhysRevD.89.124030.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0018-C27E-4 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0024-68D7-0
Genre: Journal Article

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Shaltev, M.1, Author              
Leaci, P.2, Author              
Papa, M. A.3, Author              
Prix, R.1, Author              
Affiliations:
1Observational Relativity and Cosmology, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_24011              
2Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_24010              
3Astrophysical Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_24013              

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 Abstract: We characterize and present the details of the follow-up method used on the most significant outliers of the Hough Einstein@Home all-sky search for continuous gravitational waves [J. Aasi et al Phys. Rev. D 87, 042001 (2013)]. This follow-up method is based on the two-stage approach introduced by [M. Shaltev and R. Prix, Phys. Rev. D 87, 084057 (2013)], consisting of a semicoherent refinement followed by a fully coherent zoom. We quantify the efficiency of the follow-up pipeline using simulated signals in Gaussian noise. This pipeline does not search beyond first-order frequency spin-down, and therefore we also evaluate its robustness against second-order spin-down. We present the details of the Hough Einstein@Home follow-up [J. Aasi et al Phys. Rev. D 87, 042001 (2013)] on three hardware-injected signals and on the eight most significant search outliers of unknown origin.

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 Dates: 20142014
 Publication Status: Published in print
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 Identifiers: DOI: 10.1103/PhysRevD.89.124030
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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: 89 Sequence Number: 124030 Start / End Page: - Identifier: ISSN: 0556-2821
CoNE: /journals/resource/111088197762258