SEARCHES FOR CONTINUOUS GRAVITATIONAL WAVES FROM NINE YOUNG SUPERNOVA REMNANTS
- Title
- SEARCHES FOR CONTINUOUS GRAVITATIONAL WAVES FROM NINE YOUNG SUPERNOVA REMNANTS
- Author
- 이현규
- Keywords
- gravitational waves; ISM; supernova remnants; stars; neutron
- Issue Date
- 2015-10
- Publisher
- IOP PUBLISHING LTD
- Citation
- ASTROPHYSICAL JOURNAL, v. 813, NO 1, Page. 1-2
- Abstract
- We describe directed searches for continuous gravitational waves (GWs) in data from the sixth Laser Interferometer Gravitational-wave Observatory (LIGO) science data run. The targets were nine young supernova remnants not associated with pulsars; eight of the remnants are associated with non-pulsing suspected neutron stars. One target's parameters are uncertain enough to warrant two searches, for a total of 10. Each search covered a broad band of frequencies and first and second frequency derivatives for a fixed sky direction. The searches coherently integrated data from the two LIGO interferometers over time spans from 5.3–25.3 days using the matched-filtering ${\mathcal{F}}$-statistic. We found no evidence of GW signals. We set 95% confidence upper limits as strong (low) as 4 × 10−25 on intrinsic strain, 2 × 10−7 on fiducial ellipticity, and 4 × 10−5 on r-mode amplitude. These beat the indirect limits from energy conservation and are within the range of theoretical predictions for neutron-star ellipticities and r-mode amplitudes.
- URI
- http://iopscience.iop.org/article/10.1088/0004-637X/813/1/39/metahttp://hdl.handle.net/20.500.11754/28019
- ISSN
- 0004-637X; 1538-4357
- DOI
- 10.1088/0004-637X/813/1/39
- Appears in Collections:
- COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > PHYSICS(물리학과) > Articles
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- SEARCHES FOR CONTINUOUS GRAVITATIONAL WAVES FROM NINE YOUNG SUPERNOVA REMNANTS.pdfDownload
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