论文标题
追逐尾巴：活跃的小行星，半人马和准希尔达杂志，并发现了天文学和公民科学
Chasing Tails: Active Asteroid, Centaur, and Quasi-Hilda Discovery with Astroinformatics and Citizen Science
论文作者
论文摘要
1950年从小行星（4015）威尔逊·哈灵顿（Wilson-Harrington）发现的活动促使天文学家意识到类似彗星的活动不仅限于彗星。从那时起，已经发现了<30个活跃的小行星，但它们持有有关太阳系中基本物理和化学过程的线索。大约一半的活动归因于升华，将小行星作为“挥发性储层”（一个动态的较小行星），它们具有挥发物。 CentAurs在木星和海王星的轨道之间发现，于1977年首次被认可，代表了另一个水库。活跃的半人马也很少见，已知<20。了解太阳系的挥发性分布具有广泛的含义，从通知太空探索程序到阐明行星系统如何用挥发物形成，如我们所知。我们着手增加已知的活性对象的数量，以使他们的研究成为人群。 In this dissertation I present (1) our pipeline that extracts images of known minor planets for presentation to Citizen Scientists, (2) our proof-of-concept demonstrating Dark Energy Camera images are ideal for activity detection (Chandler et al. 2018), (3) how we identified a potential new recurrent activity mechanism (Chandler et al. 2019), (4) a Centaur activity discovery, plus a novel technique to estimate which species are sublimating （Chandler等，2020），（5）我们的项目如何使我们能够将物体分类为主带彗星的成员（Chandler等，2021），这是一个罕见的（<10）活跃的小行星亚型，该小行星因升华驱动的活动而闻名，（6）Quasi-Hilda comet和动态的途径可以解释某些活跃的态度。 （7）我们的NASA合作伙伴公民科学项目主动小行星（http://activeasteroids.net），包括初始结果。
The 1950 discovery of activity emanating from asteroid (4015) Wilson-Harrington prompted astronomers to realize comet-like activity is not limited to comets. Since then < 30 active asteroids have been discovered, yet they hold clues about fundamental physical and chemical processes in the solar system. Around half of the activity is attributed to sublimation, highlighting asteroids as a "volatile reservoir" - a dynamical group of minor planets that harbor volatiles. Centaurs, found between the orbits of Jupiter and Neptune, were first recognized in 1977 and represent another reservoir. Active Centaurs are also rare, with < 20 known. Understanding the solar system volatile distribution has broad implications, from informing space exploration programs to illuminating how planetary systems form with volatiles prerequisite to life as we know it. We set out to increase the number of known active objects to enable their study as populations. In this dissertation I present (1) our pipeline that extracts images of known minor planets for presentation to Citizen Scientists, (2) our proof-of-concept demonstrating Dark Energy Camera images are ideal for activity detection (Chandler et al. 2018), (3) how we identified a potential new recurrent activity mechanism (Chandler et al. 2019), (4) a Centaur activity discovery, plus a novel technique to estimate which species are sublimating (Chandler et al. 2020), (5) how our project enabled us to classify an object as a member of the main-belt comets (Chandler et al. 2021), a rare (<10) active asteroid subset known for sublimation-driven activity, (6) the identification of a Quasi-Hilda comet and a dynamical pathway that may explain the presence of some active asteroids (Chandler et al. 2022), and (7) our NASA Partner Citizen Science project Active Asteroids (http://activeasteroids.net), including initial results.
