论文标题
公里尺度逆行jovian不规则月亮的人口
The Population of Kilometer-scale Retrograde Jovian Irregular Moons
论文作者
论文摘要
我们搜索了从加拿大 - 弗朗西 - 夏威夷望远镜的2010年档案数据集，以限制很小的（km级）不规则的木星月亮，以限制这些月亮的尺寸分布，直至$ \ sim 400 $ 〜m的Radii，发现了52个，发现52个对木星上的对象，几乎肯定是像木星一样的，肯定是在木星上的率和不规则的莫纳斯。然后，四个最亮的检测和七个探测与已知的Jovian Moons有关。将我们的特征检测（降至幅度$ m_r = 25.7 $）推送到整个逆行郡郡人口，我们估计半径$> 0.4 $〜公里的月球量为600（在2倍以下）。在最微弱的幅度下，我们发现指数索引的相对较浅的光度函数$α= 0.29 \ pm 0.15 $，对应于索引$ q \ simeq 2.5 $的差分直径定律。
We have searched a 2010 archival data set from the Canada-France-Hawaii Telescope for very small (km-scale) irregular moons of Jupiter in order to constrain the size distribution of these moons down to radii of $\sim 400$~m, discovering 52 objects which are moving with Jupiter-like on-sky rates and are nearly certainly irregular moons. The four brightest detections, and seven in total, were all then linked to known jovian moons. Extrapolating our characterized detections (those down to magnitude $m_r=25.7$) to the entire retrograde circum-jovian population, we estimate the population of radius $>0.4$~km moons to be 600 (within a factor of 2). At the faintest magnitudes we find a relatively shallow luminosity function of exponential index $α= 0.29 \pm 0.15$, corresponding to a differential diameter power law of index $q\simeq 2.5$.
