Publisher Correction: Imaging spectroscopy of solar radio burst fine structures
| Autor: | Nicolas Bian, Prasad Subramanian, Sijie Yu, B. Alcock, A. G. Emslie, Eduard P. Kontar, Valentin Melnik, Natasha L. S. Jeffrey, Alexey A. Kuznetsov |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Physics
Multidisciplinary 010504 meteorology & atmospheric sciences F300 Science General Physics and Astronomy F500 General Chemistry Solar radio 01 natural sciences Publisher Correction General Biochemistry Genetics and Molecular Biology Computational physics Imaging spectroscopy 0103 physical sciences lcsh:Q lcsh:Science 010303 astronomy & astrophysics 0105 earth and related environmental sciences |
| Zdroj: | Nature Communications Nature Communications, Vol 9, Iss 1, Pp 1-1 (2018) |
| ISSN: | 2041-1723 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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