THE APPLICATION OF MULTIVIEW METHODS FOR HIGH-PRECISION ASTROMETRIC SPACE VLBI AT LOW FREQUENCIES

	THE APPLICATION OF MULTIVIEW METHODS FOR HIGH-PRECISION ASTROMETRIC SPACE VLBI AT LOW FREQUENCIES
	Dodson, R.1,2; Rioja, M.1,3; Asaki, Y.4,5; Imai, H.1,6; Hong, X. -Y.7; Shen, Z.7
刊名	ASTRONOMICAL JOURNAL
	2013-06-01
卷号	145 期号:6 页码:1
关键词	space vehicles: instruments techniques: high angular resolution techniques: interferometric
英文摘要	High-precision astrometric space very long baseline interferometry (S-VLBI) at the low end of the conventional frequency range, i.e., 20 cm, is a requirement for a number of high-priority science goals. These are headlined by obtaining trigonometric parallax distances to pulsars in pulsar-black hole pairs and OH masers anywhere in the Milky Way and the Magellanic Clouds. We propose a solution for the most difficult technical problems in S-VLBI by the MultiView approach where multiple sources, separated by several degrees on the sky, are observed simultaneously. We simulated a number of challenging S-VLBI configurations, with orbit errors up to 8 m in size and with ionospheric atmospheres consistent with poor conditions. In these simulations we performed MultiView analysis to achieve the required science goals. This approach removes the need for beam switching requiring a Control Moment Gyro, and the space and ground infrastructure required for high-quality orbit reconstruction of a space-based radio telescope. This will dramatically reduce the complexity of S-VLBI missions which implement the phase-referencing technique.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	LARGE-MAGELLANIC-CLOUD ; 1720 MHZ MASER ; OH/IR STARS ; OH MASER ; PROPER MOTIONS ; PARALLAXES ; PULSARS ; SIMULATION ; TELESCOPE ; FIELD
收录类别	SCI
语种	英语
WOS记录号	WOS:000319167400004
内容类型	期刊论文
源URL	[http://119.78.226.72/handle/331011/18028]
专题	上海天文台_VLBI研究室
作者单位	1.Univ Western Australia, Int Ctr Radio Astron Res, Crawley, WA 6009, Australia 2.Korea Astron & Space Sci Inst, Taejon 305348, South Korea 3.OAN, E-28803 Alcala De Henares, Spain 4.Inst Space & Astronaut Sci, Sagamihara, Kanagawa 2525210, Japan 5.Grad Univ Adv Studies SOKENDAI, Sch Phys Sci, Dept Space & Astronaut Sci, Sagamihara, Kanagawa 2525210, Japan 6.Kagoshima Univ, Grad Sch Sci & Engn, Dept Phys & Astron, Kagoshima 8900065, Japan 7.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China
推荐引用方式 GB/T 7714	Dodson, R.,Rioja, M.,Asaki, Y.,et al. THE APPLICATION OF MULTIVIEW METHODS FOR HIGH-PRECISION ASTROMETRIC SPACE VLBI AT LOW FREQUENCIES[J]. ASTRONOMICAL JOURNAL,2013,145(6):1.
APA	Dodson, R.,Rioja, M.,Asaki, Y.,Imai, H.,Hong, X. -Y.,&Shen, Z..(2013).THE APPLICATION OF MULTIVIEW METHODS FOR HIGH-PRECISION ASTROMETRIC SPACE VLBI AT LOW FREQUENCIES.ASTRONOMICAL JOURNAL,145(6),1.
MLA	Dodson, R.,et al."THE APPLICATION OF MULTIVIEW METHODS FOR HIGH-PRECISION ASTROMETRIC SPACE VLBI AT LOW FREQUENCIES".ASTRONOMICAL JOURNAL 145.6(2013):1.