On the influence of the Sun on the rapid variability of compact extragalactic sources

CORC > 新疆天文台 > 研究单元未命名 > 射电天文研究室 > 星系宇宙学研究团组

	On the influence of the Sun on the rapid variability of compact extragalactic sources
	Marchili, N.1; Krichbaum, T. P.1; Liu, X.2 ; Song, H. -G.2 ; Anderson, J. M.1; Witzel, A.1; Zensus, J. A.1
刊名	ASTRONOMY & ASTROPHYSICS
	2011-06-01
卷号	530 页码:A129
关键词	scattering quasars: individual: AO 0235+164 radio continuum: general solar wind surveys
ISSN号	0004-6361
通讯作者	marchili@mpifr-bonn.mpg.de
英文摘要	Since December 2004, we have performed a program to monitor intraday variable sources at a frequency of 5 GHz at the Urumqi Observatory. We present our analysis of the variability characteristics of the flat-spectrum radio source AO 0235 + 164, which detects an annual cycle in the variability amplitude. This appears to correlate with the solar elongation of the source. A thorough analysis of the results of the MASIV IDV survey - which provides the variability characteristics of a large sample of compact radio sources confirms that there is a small but detectable component of the observed fractional modulation that increases with decreasing solar elongation. We discuss the hypothesis that the phenomenon is related to interplanetary scintillation.
学科主题	星系和宇宙学
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	SCINTILLATION-INDUCED VARIABILITY ; RADIO-SOURCES ; INTRADAY VARIABILITY ; INTERSTELLAR SCINTILLATION ; ANNUAL MODULATION ; SPACED DATA ; SOLAR-WIND ; QUASAR ; AO-0235+164 ; J1819+3845
收录类别	SCI
资助信息	National Natural Science Foundation of China under grant Nos. 10773019 and 11073036;the 973 Program of China (2009CB824800)
原文出处	http://www.aanda.org/
语种	英语
WOS记录号	WOS:000291027400129
公开日期	2013-03-06
内容类型	期刊论文
源URL	[http://ir.xao.ac.cn/handle/45760611-7/161]
专题	星系宇宙学研究团组新疆天文台_射电天文研究室新疆天文台_科普办公室
作者单位	1.Max Planck Inst Radioastron, D-53121 Bonn, Germany 2.Chinese Acad Sci, Natl Astron Observ, Urumqi Observ, Urumqi 830011, Peoples R China
推荐引用方式 GB/T 7714	Marchili, N.,Krichbaum, T. P.,Liu, X.,et al. On the influence of the Sun on the rapid variability of compact extragalactic sources[J]. ASTRONOMY & ASTROPHYSICS,2011,530:A129.
APA	Marchili, N..,Krichbaum, T. P..,Liu, X..,Song, H. -G..,Anderson, J. M..,...&Zensus, J. A..(2011).On the influence of the Sun on the rapid variability of compact extragalactic sources.ASTRONOMY & ASTROPHYSICS,530,A129.
MLA	Marchili, N.,et al."On the influence of the Sun on the rapid variability of compact extragalactic sources".ASTRONOMY & ASTROPHYSICS 530(2011):A129.