Imaging spectroscopy of solar radio burst fine structures

doi:10.1038/s41467-017-01307-8

	Imaging spectroscopy of solar radio burst fine structures
	Jeffrey, N. L. S.1; Subramanian, P.2; Kontar, E. P.1; Bian, N. H.1; Yu, S.5,7; Kuznetsov, A. A.6; Melnik, V. N.3; Emslie, A. G.4; Alcock, B.1
刊名	NATURE COMMUNICATIONS
	2017-11-15
卷号	8
DOI	10.1038/s41467-017-01307-8
文献子类	Article
英文摘要	Solar radio observations provide a unique diagnostic of the outer solar atmosphere. However, the inhomogeneous turbulent corona strongly affects the propagation of the emitted radio waves, so decoupling the intrinsic properties of the emitting source from the effects of radio wave propagation has long been a major challenge in solar physics. Here we report quantitative spatial and frequency characterization of solar radio burst fine structures observed with the Low Frequency Array, an instrument with high-time resolution that also permits imaging at scales much shorter than those corresponding to radio wave propagation in the corona. The observations demonstrate that radio wave propagation effects, and not the properties of the intrinsic emission source, dominate the observed spatial characteristics of radio burst images. These results permit more accurate estimates of source brightness temperatures, and open opportunities for quantitative study of the mechanisms that create the turbulent coronal medium through which the emitted radiation propagates.
WOS关键词	CORONAL TURBULENCE ; ACTIVE REGIONS ; III BURSTS ; SCATTERING ; PROPAGATION ; EMISSION ; RADIOHELIOGRAPH ; RADIATION ; EVOLUTION ; PLASMA
WOS研究方向	Science & Technology - Other Topics
语种	英语
WOS记录号	WOS:000415262500003
资助机构	STFC consolidated grant(ST/L000741/1) ; STFC consolidated grant(ST/L000741/1) ; NASA's Goddard Space Flight Center(NNX10AT78G) ; NASA's Goddard Space Flight Center(NNX10AT78G) ; National Aeronautics and Space Administration(NNX17AI16G) ; National Aeronautics and Space Administration(NNX17AI16G) ; RFBR grant(15-02-03717) ; RFBR grant(15-02-03717) ; STFC studentship grant ; STFC studentship grant ; ISSI Bern, Switzerland ; ISSI Bern, Switzerland ; STFC consolidated grant(ST/L000741/1) ; STFC consolidated grant(ST/L000741/1) ; NASA's Goddard Space Flight Center(NNX10AT78G) ; NASA's Goddard Space Flight Center(NNX10AT78G) ; National Aeronautics and Space Administration(NNX17AI16G) ; National Aeronautics and Space Administration(NNX17AI16G) ; RFBR grant(15-02-03717) ; RFBR grant(15-02-03717) ; STFC studentship grant ; STFC studentship grant ; ISSI Bern, Switzerland ; ISSI Bern, Switzerland
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/20187]
专题	国家天文台_射电天文研究部
作者单位	1.Univ Glasgow, Sch Phys & Astron, Glasgow G12 8QQ, Lanark, Scotland 2.Indian Inst Sci Educ & Res, Pune 411008, Maharashtra, India 3.Natl Acad Sci Ukraine, Inst Radio Astron, UA-61002 Kharkov, Ukraine 4.Western Kentucky Univ, Dept Phys & Astron, Bowling Green, KY 42101 USA 5.Chinese Acad Sci, Key Lab Solar Act, Natl Astron Observ, Beijing 100012, Peoples R China 6.Inst Solar Terr Phys, Irkutsk 664033, Russia 7.New Jersey Inst Technol, Newark, NJ 07102 USA
推荐引用方式 GB/T 7714	Jeffrey, N. L. S.,Subramanian, P.,Kontar, E. P.,et al. Imaging spectroscopy of solar radio burst fine structures[J]. NATURE COMMUNICATIONS,2017,8.
APA	Jeffrey, N. L. S..,Subramanian, P..,Kontar, E. P..,Bian, N. H..,Yu, S..,...&Alcock, B..(2017).Imaging spectroscopy of solar radio burst fine structures.NATURE COMMUNICATIONS,8.
MLA	Jeffrey, N. L. S.,et al."Imaging spectroscopy of solar radio burst fine structures".NATURE COMMUNICATIONS 8(2017).