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Imaging spectroscopy of solar radio burst fine structures
Kontar, E. P.1; Yu, S.2,3; Kuznetsov, A. A.4; Emslie, A. G.5; Alcock, B.1; Jeffrey, N. L. S.1; Melnik, V. N.6; Bian, N. H.1; Subramanian, P.7
2017-11-15
Source PublicationNATURE COMMUNICATIONS
Volume8
AbstractSolar 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.
SubtypeArticle
WOS HeadingsScience & Technology
Funding OrganizationSTFC 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
DOI10.1038/s41467-017-01307-8
WOS KeywordCORONAL TURBULENCE ; ACTIVE REGIONS ; III BURSTS ; SCATTERING ; PROPAGATION ; EMISSION ; RADIOHELIOGRAPH ; RADIATION ; EVOLUTION ; PLASMA
Indexed BySCI
Language英语
Funding OrganizationSTFC 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
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000415262500003
Citation statistics
Cited Times:22[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/20187
Collection射电天文研究部
Affiliation1.Univ Glasgow, Sch Phys & Astron, Glasgow G12 8QQ, Lanark, Scotland
2.New Jersey Inst Technol, Newark, NJ 07102 USA
3.Chinese Acad Sci, Key Lab Solar Act, Natl Astron Observ, Beijing 100012, Peoples R China
4.Inst Solar Terr Phys, Irkutsk 664033, Russia
5.Western Kentucky Univ, Dept Phys & Astron, Bowling Green, KY 42101 USA
6.Natl Acad Sci Ukraine, Inst Radio Astron, UA-61002 Kharkov, Ukraine
7.Indian Inst Sci Educ & Res, Pune 411008, Maharashtra, India
Recommended Citation
GB/T 7714
Kontar, E. P.,Yu, S.,Kuznetsov, A. A.,et al. Imaging spectroscopy of solar radio burst fine structures[J]. NATURE COMMUNICATIONS,2017,8.
APA Kontar, E. P..,Yu, S..,Kuznetsov, A. A..,Emslie, A. G..,Alcock, B..,...&Subramanian, P..(2017).Imaging spectroscopy of solar radio burst fine structures.NATURE COMMUNICATIONS,8.
MLA Kontar, E. P.,et al."Imaging spectroscopy of solar radio burst fine structures".NATURE COMMUNICATIONS 8(2017).
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