IHEP OpenIR
Detecting super-Nyquist-frequency gravitational waves using a pulsar timing array
Yi SX(易疏序); Zhang SN(张双南); Yi, SX; Zhang, SN
2016
Source PublicationSCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
ISSN1674-7348
EISSN1869-1927
Volume59Issue:8Pages:689511
Corresponding Author张双南
SubtypeArticle
AbstractThe maximum frequency of gravitational waves (GWs) detectable with traditional pulsar timing methods is set by the Nyquist frequency (f(Ny)) of the observation. Beyond this frequency, GWs leave no temporal-correlated signals; instead, they appear as white noise in the timing residuals. The variance of the GW-induced white noise is a function of the position of the pulsars relative to the GW source. By observing this unique functional form in the timing data, we propose that we can detect GWs of frequency > f(Ny) (super-Nyquist frequency GWs; SNFGWs). We demonstrate the feasibility of the proposed method with simulated timing data. Using a selected dataset from the Parkes Pulsar Timing Array data release 1 and the North American Nanohertz Observatory for Gravitational Waves publicly available datasets, we try to detect the signals from single SNFGW sources. The result is consistent with no GW detection with 65.5% probability. An all-sky map of the sensitivity of the selected pulsar timing array to single SNFGW sources is generated, and the position of the GW source where the selected pulsar timing array is most sensitive to is lambda(s) = -0.82, beta(s) = -1.03 (rad); the corresponding minimum GW strain is h = 6.31 x 10(-11) at f = 1 x 10(-5) Hz.
Keywordgravitational wave pulsar black hole
DOI10.1007/s11433-016-0095-2
WOS KeywordBINARIES ; LIMITS
Indexed BySCI ; ADS
Language英语
WOS IDWOS:000378818700013
ADS Bibcode2016SCPMA..59h..95Y
ADS URLhttps://ui.adsabs.harvard.edu/abs/2016SCPMA..59h..95Y
ADS CITATIONShttps://ui.adsabs.harvard.edu/abs/2016SCPMA..59h..95Y/citations
inspireid1451619
Citation statistics
Cited Times:1 [INSPIRE]
Cited Times:0 [ADS]
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/260685
Collection中国科学院高能物理研究所
Affiliation中国科学院高能物理研究所
Recommended Citation
GB/T 7714
Yi SX,Zhang SN,Yi, SX,et al. Detecting super-Nyquist-frequency gravitational waves using a pulsar timing array[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2016,59(8):689511.
APA 易疏序,张双南,Yi, SX,&Zhang, SN.(2016).Detecting super-Nyquist-frequency gravitational waves using a pulsar timing array.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,59(8),689511.
MLA 易疏序,et al."Detecting super-Nyquist-frequency gravitational waves using a pulsar timing array".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 59.8(2016):689511.
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