太阳毫米辐射与软x射线辐射的关系

IF 0.5 Q4 PHYSICS, APPLIED Latvian Journal of Physics and Technical Sciences Pub Date : 2022-06-01 DOI:10.2478/lpts-2022-0023
J. Kallunki, M. Tornikoski
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引用次数: 1

摘要

摘要太阳射电和软X射线发射之间的联系已经在早期的各种无线电频率下进行了研究。例如,太阳耀斑期间的强度峰值时间已经在这两个波长范围之间进行了比较。据报道,太阳无线电发射在耀斑期间的软X射线发射之前达到峰值。然而,也出现了相反的结果。在这项研究中,我们比较了毫米(8毫米)的太阳和软X射线发射(0.5–4Å和1–8Å)。2015年至2019年间,在芬兰阿尔托大学的Metsähovi射电天文台进行了无线电观测。软X射线数据是用GOES-15(地球静止运行环境卫星)观测到的。数据显示,太阳毫米辐射可以在软X射线峰值发射之前或之后达到峰值。在这项研究中,我们提出了两种不同的场景,这可以解释峰值时间差异和行为。第一种方案提出毫米(8毫米)和软X射线发射之间的紧密联系,第二种方案适用于发射机制更加分离的情况。
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Relationship Between Solar Millimeter and Soft X-Ray Emissions
Abstract The connection between solar radio and soft X-ray emission has earlier been studied at various radio frequencies. For instance, the intensity peak times during solar flares have been compared between these two wavelength regimes. It has been reported that solar radio emission peaks before soft X-ray emission during a flare. However, opposite results have also been presented. In this study, we compare millimetre (8 mm) solar and soft X-ray emissions (0.5–4 Å and 1–8 Å). The radio observations were made at Metsähovi Radio Observatory of Aalto University in Finland between 2015 and 2019. The soft X-ray data were observed with GOES-15 (Geostationary Operational Environmental Satellite). The data show that the solar millimetre emission can peak either before or after soft X-ray peak emission. In this study, we present two different scenarios, which could explain the peaking time differences and behaviour. The first scenario proposes a tight connection between the millimetre (8 mm) and soft X-ray emissions, the second one is for cases where the emission mechanisms are more separate.
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来源期刊
CiteScore
1.50
自引率
16.70%
发文量
41
审稿时长
5 weeks
期刊介绍: Latvian Journal of Physics and Technical Sciences (Latvijas Fizikas un Tehnisko Zinātņu Žurnāls) publishes experimental and theoretical papers containing results not published previously and review articles. Its scope includes Energy and Power, Energy Engineering, Energy Policy and Economics, Physical Sciences, Physics and Applied Physics in Engineering, Astronomy and Spectroscopy.
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