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The challenge of identifying interstellar meteors
Planetary and Space Science ( IF 1.8 ) Pub Date : 2020-11-01 , DOI: 10.1016/j.pss.2020.105060
Maria Hajdukova , Veerle Sterken , Paul Wiegert , Leonard Kornoš

Abstract This review discusses the unsolved problem of the detection of interstellar particles in the Earth’s atmosphere and the presence of interstellar meteors in meteor databases. Owing to the difficulties in obtaining accurate meteor measurements and, consequently, the meteoroids’ orbital parameters, the identification of interstellar meteors based on their hyperbolic excess velocities is extremely challenging. Moreover, it has to be verified whether the orbit’s hyperbolicity was not produced in the Solar System. Searches for interstellar meteors have been carried out using different observational techniques for more than a quarter of a century and, although they have produced many valuable results, not a single case of a meteor claimed to be produced by an interstellar particle has proven satisfactorily convincing. The reason rests in the constraints of the meteor observations, which we outline here, using meteor datasets obtained by various techniques.

中文翻译:

识别星际流星的挑战

摘要 这篇综述讨论了地球大气中星际粒子检测的未解决问题以及流星数据库中星际流星的存在。由于难以获得准确的流星测量值以及流星体的轨道参数,因此基于双曲线超速识别星际流星极具挑战性。此外,还必须验证轨道的双曲线性是否不是在太阳系中产生的。对星际流星的搜索已经使用不同的观测技术进行了 25 年多,虽然它们产生了许多有价值的结果,但没有一个声称由星际粒子产生的流星案例被证明令人满意。
更新日期:2020-11-01
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