arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2007.13945astro-ph.EP
收藏

P/2019 LD2(ATLAS)的瞬变类木星特洛伊轨道

The Transient Jupiter Trojan-Like Orbit of P/2019 LD2 (ATLAS)

Henry H. Hsieh, Alan Fitzsimmons, Bojan Novakovic, Larry Denneau, Aren N. Heinze

摘要:

P/2019 LD 2彗星的轨道要素目前类似于木星特洛伊的轨道要素,因此从表面上看,这似乎是首次研究这一群体成员的挥发性成分和活跃行为的独特机会。然而,数值积分显示,它在2018年7月到达目前的木星特洛伊类轨道之前是一颗半人马座彗星,预计将在2028年2月恢复为半人马座彗星,最终在2063年2月成为半人马座家族彗星。P/2019 LD 2的案例突出表明,需要一种机制来快速可靠地动态分类在当前和即将进行的广域调查中发现的小型太阳系天体。

英文摘要:

Comet P/2019 LD2 has orbital elements currently resembling those of a Jupiter Trojan, and therefore superficially appears to represent a unique opportunity to study the volatile content and active behavior of a member of this population for the first time. However, numerical integrations show that it was previously a Centaur before reaching its current Jupiter Trojan-like orbit in 2018 July, and is expected to return to being a Centaur in 2028 February, before eventually becoming a Jupiter-family comet in 2063 February. The case of P/2019 LD2 highlights the need for mechanisms to quickly and reliably dynamically classify small solar system bodies discovered in current and upcoming wide-field surveys.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑