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Analysis of loop-top and foot-point sources in microwave bursts
Su, YN ; Huang, GL
2003
Source PublicationSOLAR VARIABILITY AS AN INPUT TO THE EARTH'S ENVIRONMENT
ISSN0379-6566
Volume535Pages:695-698
AbstractThe polarization of four microwave bursts with loop-top and foot-point sources at 17 GHz of Nobeyama Radioheliograph (NoRH) is analyzed. The loop-like structure of the four events is confirmed by the simultaneous photospheric magnetograms (SOHO/MDI) and EtJV (TRACE) image or soft x-ray image (YOHKOH/SXT). Three events are located near the limb, and the other one is located 35degrees away from the center of solar disk. The three microwave sources in a given burst are polarized in the same sense. The polarization structure call be interpreted in terms of the extraordinary mode (e-mode) emission, taking into account the polarity of the underlying magnetic field and propagation effects, which may lead to inversion of the sense of polarization in the limbward foot-point and loop-top sources of the flaring loop.
KeywordGyro-synchrotron Emission Magnetic Dipole Field Flaring Loop X-ray Polarization Absorption
Subject AreaAstronomy & Astrophysics
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/4593
Collection历算和天文参考系研究团组
Recommended Citation
GB/T 7714
Su, YN,Huang, GL. Analysis of loop-top and foot-point sources in microwave bursts[J]. SOLAR VARIABILITY AS AN INPUT TO THE EARTH'S ENVIRONMENT,2003,535:695-698.
APA Su, YN,&Huang, GL.(2003).Analysis of loop-top and foot-point sources in microwave bursts.SOLAR VARIABILITY AS AN INPUT TO THE EARTH'S ENVIRONMENT,535,695-698.
MLA Su, YN,et al."Analysis of loop-top and foot-point sources in microwave bursts".SOLAR VARIABILITY AS AN INPUT TO THE EARTH'S ENVIRONMENT 535(2003):695-698.
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