SAFARI: Searching Asteroids for Activity Revealing Indicators

SAFARI: Searching Asteroids for Activity Revealing Indicators
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SAFARI:寻找小行星活动揭示指标

DOI:
10.1088/1538-3873/aad03d
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发表时间:
2018
影响因子:
3.5
通讯作者:
C. Trujillo
C. Trujillo
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
C. O. Chandler;A. Curtis;Michael Mommert;S. Sheppard;C. Trujillo

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活跃的小行星在动力学上表现得像小行星,但显示出彗星般的彗星。人们对这些物体的了解很少,迄今为止只确定了大约30个。我们利用暗能量相机(DECam)的深度图像对小行星活动进行了最深入的系统搜索之一,非常适合这项任务。我们从35,640张图像中提取了11,703颗独特的小行星。我们探测到了三颗先前确定的活跃小行星((62412),(1)谷神星和(779)尼娜),尽管只有(62412)显示出活动的迹象。我们的活动发生率为1/11,703,与目前的1/10,000活动发生率估计一致。我们的概念证明表明:(1)我们的新信息学方法可以定位活跃的小行星;(2)DECam数据非常适合寻找活跃的小行星。
Active asteroids behave dynamically like asteroids but display comet-like comae. These objects are poorly understood, with only about 30 identified to date. We have conducted one of the deepest systematic searches for asteroid activity by making use of deep images from the Dark Energy Camera (DECam) ideally suited to the task. We looked for activity indicators among 11,703 unique asteroids extracted from 35,640 images. We detected three previously identified active asteroids ((62412), (1) Ceres and (779) Nina), though only (62412) showed signs of activity. Our activity occurrence rate of 1 in 11,703 is consistent with the prevailing 1 in 10,000 activity occurrence rate estimate. Our proof of concept demonstrates (1) our novel informatics approach can locate active asteroids and (2) DECam data are well-suited to the search for active asteroids.
DOI: 10.1088/0004-6256/142/1/29
发表时间: 2011-05
期刊: The Astronomical Journal
影响因子: --
作者:
H. Hsieh;M. Ishiguro;P. Lacerda;D. Jewitt
通讯作者: H. Hsieh;M. Ishiguro;P. Lacerda;D. Jewitt
DOI: 10.1088/0004-6256/137/1/157
发表时间: 2009-01-01
影响因子: 5.3
作者:
Hsieh, Henry H.;Jewitt, David;Ishiguro, Masateru
通讯作者: Ishiguro, Masateru