Hierarchical follow-up of sub-threshold candidates of an all-sky Einstein@Home 
search for continuous gravitational waves on LIGO sixth science run data

Papa, Maria Alessandra; Eggenstein, Heinz-Bernd; Walsh, Sinéad; Di Palma, Irene; Allen, Bruce; Astone, Pia; Bock, Oliver; Creighton, Teviet D.; Keitel, David; Machenschalk, Bernd; Prix, Reinhard; Siemens, Xavier; Singh, Avneet; Zhu, Sylvia; Schutz, Bernard F.

doi:10.1103/PhysRevD.94.032006

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学術論文

Hierarchical follow-up of sub-threshold candidates of an all-sky Einstein@Home search for continuous gravitational waves on LIGO sixth science run data

MPS-Authors

/persons/resource/persons20662

Papa, Maria Alessandra
Searching for Continuous Gravitational Waves, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

/persons/resource/persons206570

Eggenstein, Heinz-Bernd
Searching for Continuous Gravitational Waves, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

/persons/resource/persons1448

Di Palma, Irene
Observational Relativity and Cosmology, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

/persons/resource/persons40518

Allen, Bruce
Observational Relativity and Cosmology, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

/persons/resource/persons40521

Bock, Oliver
Observational Relativity and Cosmology, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

/persons/resource/persons41554

Keitel, David
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

/persons/resource/persons40529

Machenschalk, Bernd
Observational Relativity and Cosmology, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;
Searching for Continuous Gravitational Waves, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

/persons/resource/persons40534

Prix, Reinhard
Observational Relativity and Cosmology, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;
Searching for Continuous Gravitational Waves, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

/persons/resource/persons192124

Singh, Avneet
Searching for Continuous Gravitational Waves, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

/persons/resource/persons192133

Zhu, Sylvia
Searching for Continuous Gravitational Waves, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

/persons/resource/persons20673

Schutz, Bernard F.
Astrophysical Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

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フルテキスト (公開)

1608.08928.pdf
(プレプリント), 840KB

PRD94.122006.pdf
(出版社版), 2MB

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引用

Papa, M. A., Eggenstein, H.-B., Walsh, S., Di Palma, I., Allen, B., Astone, P., Bock, O., Creighton, T. D., Keitel, D., Machenschalk, B., Prix, R., Siemens, X., Singh, A., Zhu, S., & Schutz, B. F. (2016). Hierarchical follow-up of sub-threshold candidates of an all-sky Einstein@Home search for continuous gravitational waves on LIGO sixth science run data. Physical Review D, 94:. doi:10.1103/PhysRevD.94.032006.

引用: https://hdl.handle.net/11858/00-001M-0000-002C-39BA-E

要旨

We report results of an all-sky search for periodic gravitational waves with
frequency between 50 and 510 Hz from isolated compact objects, i.e. neutron
stars. A new hierarchical multi-stage approach is taken, supported by the
computing power of the Einstein@Home project, allowing to probe more deeply
than ever before. 16 million sub-threshold candidates from the initial search
[LVC,arXiv:1606.09619] are followed up in three stages. None of those
candidates is consistent with an isolated gravitational wave emitter, and 90%
confidence level upper limits are placed on the amplitudes of continuous waves
from the target population. Between 170.5 and 171 Hz we set the most
constraining 90% confidence upper limit on the strain amplitude h0 at 4.3x10-25
, while at the high end of our frequency range we achieve an upper limit of
7.6x10-25. These are the most constraining all-sky upper limits to date and
constrain the ellipticity of rotating compact objects emitting at 300 Hz at a
distance D to less than 6x10-7 [d/100pc].