Versatile directional searches for gravitational waves with Pulsar Timing Arrays

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	Versatile directional searches for gravitational waves with Pulsar Timing Arrays
	Madison, D. R.1,2; Zhu, X. -J.3,4; Hobbs, G.4; Coles, W.5; Shannon, R. M.4,6; Wang, J. B.7 ; Tiburzi, C.8,9,10,11; Manchester, R. N.4; Bailes, M.12; Bhat, N. D. R.6
刊名	MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
	2016-02-01
卷号	455 期号:4 页码:3662-3673
关键词	gravitational waves methods: data analysis pulsars: general
通讯作者	Madison, D. R.
英文摘要	By regularly monitoring the most stable millisecond pulsars over many years, pulsar timing arrays (PTAs) are positioned to detect and study correlations in the timing behaviour of those pulsars. Gravitational waves (GWs) from supermassive black hole binaries (SMBHBs) are an exciting potentially detectable source of such correlations. We describe a straightforward technique by which a PTA can be 'phased-up' to form time series of the two polarization modes of GWs coming from a particular direction of the sky. Our technique requires no assumptions regarding the time-domain behaviour of a GW signal. This method has already been used to place stringent bounds on GWs from individual SMBHBs in circular orbits. Here, we describe the methodology and demonstrate the versatility of the technique in searches for a wide variety of GW signals including bursts with unmodelled waveforms. Using the first six years of data from the Parkes Pulsar Timing Array, we conduct an all-sky search for a detectable excess of GW power from any direction. For the lines of sight to several nearby massive galaxy clusters, we carry out a more detailed search for GW bursts with memory, which are distinct signatures of SMBHB mergers. In all cases, we find that the data are consistent with noise.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	BLACK-HOLE BINARIES ; LIMITS ; MEMORY ; BURSTS ; RADIATION ; EVOLUTION ; NOISE
收录类别	SCI
语种	英语
WOS记录号	WOS:000368009300020
内容类型	期刊论文
源URL	[http://ir.xao.ac.cn/handle/45760611-7/915]
专题	脉冲星研究团组新疆天文台_射电天文研究室
作者单位	1.Cornell Univ, Dept Astron, Ithaca, NY 14853 USA 2.Natl Radio Astron Observ, Charlottesville, VA 22903 USA 3.Univ Western Australia, Sch Phys, Crawley, WA 6009, Australia 4.CSIRO Astron & Space Sci, Australia Telescope Natl Facil, Epping, NSW 1710, Australia 5.Univ Calif San Diego, Elect & Comp Engn, La Jolla, CA 92093 USA 6.Curtin Univ, Int Ctr Radio Astron Res, Bentley, WA 6102, Australia 7.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Xinjiang, Peoples R China 8.INAF Osservatorio Astron Cagliari, I-09047 Selargius, CA, Italy 9.Univ Cagliari, Dipartimento Fis, I-09042 Monserrato, CA, Italy 10.Max Planck Inst Radioastron, D-53121 Bonn, Germany
推荐引用方式 GB/T 7714	Madison, D. R.,Zhu, X. -J.,Hobbs, G.,et al. Versatile directional searches for gravitational waves with Pulsar Timing Arrays[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2016,455(4):3662-3673.
APA	Madison, D. R..,Zhu, X. -J..,Hobbs, G..,Coles, W..,Shannon, R. M..,...&You, X..(2016).Versatile directional searches for gravitational waves with Pulsar Timing Arrays.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,455(4),3662-3673.
MLA	Madison, D. R.,et al."Versatile directional searches for gravitational waves with Pulsar Timing Arrays".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 455.4(2016):3662-3673.