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引用次数: 0
摘要
对活动区(AR)寿命的研究大多局限于短寿命的 AR。本文的目的是将反复出现的 AR 囊括进来,并对其进行明确识别。第一步是通过算法列出可能返回的太阳黑子;然后,利用德布勒森太阳黑子数据库的独特 HTML 功能对候选太阳黑子进行目视检查。最后一步是应用以前文章中介绍的非对称高斯函数来处理短寿命的太阳黑子。该函数与正确识别出的重复出现的太阳黑子群数据的拟合效果出奇地好,通过几次旋转,可以重建太阳远侧的发展情况。面积-寿命关系的 Gnevyshev-Waldmeier 规则不适用于周期性太阳黑子;但是,作为一种新方法,线性回归分析扩展到了长寿命,从而可以识别出两种大小的群体,并得到两种不同的面积-寿命关系。寿命与太阳纬度和太阳周期相位有微弱的关系。如果无法对数据进行非对称高斯拟合,那么它们可能属于一个活动巢穴的连续成员。
Studies of active region (AR) lifetimes are mostly restricted to short-lived ARs. The aim of this paper is to include recurrent ARs, which should be identified unambiguously. The first step is the algorithmic listing of possible returns; then, the candidates are visually checked using the unique HTML-feature of the Debrecen sunspot database. The final step is application of an asymmetric Gaussian function, introduced in previous articles, for short-lived ARs. This function has a surprisingly good fit to the data on correctly identified recurrent sunspot groups over several rotations enabling the reconstruction of the development on the far side of the sun. The Gnevyshev–Waldmeier rule for the area–lifetime relationship is not applicable for recurrent ARs; however, as a novel approach, a linear regression analysis extended to long lifetimes made it possible to recognize two populations of sizes for which two different area–lifetime relationships can be obtained. The lifetimes exhibit weak dependencies on the heliographic latitude and solar cycle phase. If an asymmetric Gaussian cannot be fit to the data, then they presumably belong to consecutive members of an active nest.
UniversePhysics and Astronomy-General Physics and Astronomy
CiteScore
4.30
自引率
17.20%
发文量
562
审稿时长
24.38 days
期刊介绍:
Universe (ISSN 2218-1997) is an international peer-reviewed open access journal focused on fundamental principles in physics. It publishes reviews, research papers, communications, conference reports and short notes. Our aim is to encourage scientists to publish their research results in as much detail as possible. There is no restriction on the length of the papers.