Observation of Type-II and Type-IV Solar Radio Burst Associated with an M-Class Solar Flare and an Impulsive CME

IF 0.1 0 RELIGION

global journal al thaqafah Pub Date : 2022-06-30 DOI:10.7187/gjatsi062022-5

Syed Zaiful Hamzah, S.N.A, Hamidi, Z. S.

引用次数: 0

Abstract

Our study focused on two types of solar radio bursts observed on November 29th, 2020, at 12:54 UT and 12:56 UT, respectively. In addition to seeing the radio burst appear in the spectral dynamic spectrum, measurements of the burst's energy, frequency drift rates, and plasma frequency have been made. Prior to the type II burst, a flare of class M4.44 was detected by the GOES satellite and seen in x-ray flux data. AR 2790 generated the solar flare, but it was hidden behind the southeastern limb of the Sun, so the active region was not visible in the solar disk on November 29th, 2020. As far as solar flare explosions go, this was the biggest in three years since October 20th, 2017, from AR2685. Due to the proximity of these events, it is thought that the solar flare triggered a partial-halo CME at 13:25UT. From the CME’s velocity and flare association, we infer that it is an impulsive CME.

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与m级太阳耀斑和脉冲CME相关的ii型和iv型太阳射电暴观测

我们的研究重点是分别在2020年11月29日12时54分和12时56分观测到的两种类型的太阳射电暴。除了看到射电暴出现在光谱动态光谱中，还测量了射电暴的能量、频率漂移率和等离子体频率。在II型爆发之前，GOES卫星探测到M4.44级的耀斑，并在x射线通量数据中看到。ar2790产生了太阳耀斑，但它隐藏在太阳东南翼的后面，因此在2020年11月29日的太阳圆盘上看不到活跃区域。就太阳耀斑爆发而言，这是自2017年10月20日以来三年来最大的一次，来自AR2685。由于这些事件的临近，人们认为太阳耀斑在13:25UT触发了部分日晕CME。从日冕物质抛射的速度和耀斑的关联，我们推断它是一次脉冲日冕物质抛射。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

global journal al thaqafah RELIGION-

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0.20

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期刊介绍： Global Journal Al-Thaqafah (GJAT) is a biannual journal, published by Universiti Sultan Azlan Shah (USAS), Perak, MALAYSIA. This journal is purely academic and peer reviewed. It caters to articles, research notes and reports, and book reviews on diverse topics relating to Islam and the Muslims. This journal is intended to provide an avenue for researchers and academics from all persuasions and traditions to share and discuss differing views, new ideas, theories, research outcomes, and socio-cultural and socio-political issues that impact on and directly or indirectly affect the Muslim World with the sole purpose of making this world a better place to live in. GJAT started in 2011 and was later granted the SCOPUS status in March 2014. Since then, GJAT has published numerous articles and materials from international contributors. GJAT welcomes contributions from all: academics, experts, and professionals. All articles submitted must be original, academic, of high scholarly standard, and meet the strict SCOPUS requirements. GJAT prioritizes articles that discuss fundamental issues and are of global relevance and importance, and publishes all articles that fulfill the basic criteria without prejudice (kindly refer to "Submission and Guidelines"). All decisions by GJAT to publish any article are final.