Peak flux distributions of solar radio type-i bursts from highly resolved spectral observations

K. Iwai, S. Masuda, Y. Miyoshi, F. Tsuchiya, A. Morioka, H. Misawa

研究成果: Article査読

15 被引用数 (Scopus)

抄録

Solar radio type-I bursts were observed on 2011 January 26 by high resolution observations with the radio telescope AMATERAS in order to derive their peak flux distributions. We have developed a two-dimensional auto burst detection algorithm that can distinguish each type-I burst element from complex noise storm spectra that include numerous instances of radio frequency interference (RFI). This algorithm removes RFI from the observed radio spectra by applying a moving median filter along the frequency axis. Burst and continuum components are distinguished by a two-dimensional maximum and minimum search of the radio dynamic spectra. The analysis result shows that each type-I burst element has one peak flux without double counts or missed counts. The peak flux distribution of type-I bursts derived using this algorithm follows a power law with a spectral index between 4 and 5.

本文言語English
論文番号L2
ジャーナルAstrophysical Journal Letters
768
1
DOI
出版ステータスPublished - 2013 5月 1

ASJC Scopus subject areas

  • 天文学と天体物理学
  • 宇宙惑星科学

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