论文标题
小行星的尺寸分布和命运的颜色
Asteroids' Size Distribution and Colors from HiTS
论文作者
论文摘要
我们报告了2015年高节奏短暂调查（HITS）2015年活动期间太阳系对象的观察结果。我们发现了5740具尸体（主要是主要的小行星），其中1203个在不同的夜晚和$ g'$和$ r'$中被检测到。对象在Barycenter系统中链接，并假设按Keplerian运动计算其轨道参数。我们确定了6个近地球物体，1738个主要带小行星和4个跨纽布对物体。我们找不到$ G'-r'$颜色大小的相关性，价格为$ 14 <h_ {g'} <18 $（$ 1 <d <10 $ km）小行星。我们显示小行星的颜色受到命中的干扰'1.6小时的节奏，并估计观察结果应最多14分钟分开，以避免在未来的LSST（如LSST）中造成混淆。主皮带对象的尺寸分布可以被描述为具有坡度$ \ sim0.9 $的简单功率定律，比其他任何调查都陡峭，而HITS 2014的广告系列的数据与以前的数据相一致（斜率$ \ sim0.68 $在BRIGHT ENEN，$ \ sim0.34.34 $ teent End End End en en en en en en en en en en en en en en en en en end ent en end ente的。这种差异可能是由于自2015年以来的主要腰带的黄道分布远远超过了黄道，而不是2014年和大多数先前的调查。
We report the observations of solar system objects during the 2015 campaign of the High cadence Transient Survey (HiTS). We found 5740 bodies (mostly Main Belt asteroids), 1203 of which were detected in different nights and in $g'$ and $r'$. Objects were linked in the barycenter system and their orbital parameters were computed assuming Keplerian motion. We identified 6 near Earth objects, 1738 Main Belt asteroids and 4 Trans-Neptunian objects. We did not find a $g'-r'$ color-size correlation for $14<H_{g'}<18$ ($1<D<10$ km) asteroids. We show asteroids' colors are disturbed by HiTS' 1.6 hour cadence and estimate that observations should be separated by at most 14 minutes to avoid confusion in future wide-field surveys like LSST. The size distribution for the Main Belt objects can be characterized as a simple power law with slope $\sim0.9$, steeper than in any other survey, while data from HiTS 2014's campaign is consistent with previous ones (slopes $\sim0.68$ at the bright end and $\sim0.34$ at the faint end). This difference is likely due to the ecliptic distribution of the Main Belt since 2015's campaign surveyed farther from the ecliptic than did 2014's and most previous surveys.
