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盒軌道

盒軌道 是在恆星動力學中一種特殊型式的軌道,可以在三軸系統中看見。它們不同於觀察到的球對稱或軸對稱的迴圈軌道,該系統對三軸中的任何一個都不具備對稱性

在盒軌道,恆星在這個系統中的振盪運動不對稱於三個軸中的任何一個軸。這樣運動的結果是,它充塞 (大約的) 於空間中的一個箱型區域。不像迴圈軌道,在盒軌道上的恆星可以隨意的接近來到系統的中心。在特殊的場合,如果振盪經常在不同的方向上是通約性的,在一維或二維的軌道方向就會朝向各處,而可以避免集中在中心[1]。這種軌道有時也稱為"boxlet "。

盒軌道的例子 (在2維空間)
開始的盒軌道 許多循環後的盒軌道 封閉的盒軌道
開始的盒軌道 許多循環後的盒軌道 封閉的盒軌道

參考資料

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  1. ^ Merritt, D.; Valluri, M., Resonant Orbits in Triaxial Galaxies, The Astronomical Journal, September 1999, 118: 1177–1189, Bibcode:1999AJ....118.1177M, arXiv:astro-ph/9903452可免费查阅, doi:10.1086/301012 

相關條目

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盒軌道
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