arXiv 2401.008452024-01-02astro-ph.EP

SOHO克鲁兹掠日彗星流的形成与演化。I. 历史与初步研究

Formation and Evolution of the Stream of SOHO Kreutz Sungrazers. I. History and Preliminary Investigations

Zdenek Sekanina

备注：: 12 pages, 10 figures, 6 tables

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AI总结：

本文旨在为SOHO克鲁兹掠日彗星流构建自洽的形成与演化模型，第I部分回顾相关研究历史并提供初步诊断结果，提出近距彗星对的高频出现是更广泛群集过程的产物。

摘要：

自1995年发射太阳和日球层天文台（SOHO）以来，以克鲁兹掠日彗星为主的微型彗星近连续流成为彗星科学的意外宝藏。此后近30年间，从未有人尝试为该克鲁兹彗星流的形成与演化构建自洽模型——这正是本两部分研究的共同目标。第I部分描述了与SOHO掠日彗星问题相关的研究历史重点（包括Hubbard、Kreutz和Marsden的主要贡献），并提供了诊断价值的初步结果，旨在为第II部分的工作提供便利与关键信息。此前注意到的问题，如SOHO数据库中近距彗星对的高频出现，被提出是由在交点经度和时间上均可见的更广泛群集过程的产物。我展示了由SOHO克鲁兹掠日彗星（主要来自Population I）高到达率所揭示的密集彗星群实例。

英文摘要：

The nearly continuous stream of miniature comets dominated by the Kreutz sungrazers has been an unexpected bonanza for cometary science initiated by the launch of the Solar and Heliospheric Observatory (SOHO) in 1995. Over the nearly 30 years since the time, no serious attempt has been made to formulate a self-consistent model for the formation and evolution of this stream of Kreutz comets -- the goal of the present two-part investigation. Part I describes historical highlights of the research that has been relevant to the problem of SOHO sungrazers (including the major contributions by Hubbard, Kreutz, and Marsden) and furnishes preliminaries of diagnostic value that are intended to facilitate, and provide critical information for, the work in Part II. Formerly noted issues, such as the high frequency of close pairs in the SOHO database, are proposed to be products of a broader process of swarming, seen in both the nodal longitude and time. I present examples of tight swarms revealed by high arrival rates of the SOHO Kreutz sungrazers, primarily from Population I.

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