论文标题
与DECAM的土星卫星的颜色
Colors of Irregular Satellites of Saturn with DECam
论文作者
论文摘要
我们向21种土星不规则卫星报告G-R和R-I新颜色，其中4个以前未报告。这是一项调查中报告的土星不规则卫星数量最多。通过“堆叠”其观察结果以增加信号而不会落后，可以测量这些卫星。这项工作描述了一种新颖的加工算法，该算法能够在明显的背景噪声和严重拥挤的领域前检测微弱的来源。 我们的调查显示，土星不规则卫星的这些新颜色测量与以前的作品中发现的其他不规则卫星种群一致，并加强了这样的观察，即不规则的卫星之间缺乏超红对象是一个真正的特征，它将它们与跨核对象（他们所占据的源人群）分开。
We report g-r and r-i new colors for 21 Saturn Irregular Satellites, among them, 4 previously unreported. This is the highest number of Saturn Irregular satellites reported in a single survey. These satellites were measured by "stacking" their observations to increase their signal without trailing. This work describes a novel processing algorithm that enables the detection of faint sources under significant background noise and in front of a severely crowded field. Our survey shows these new color measurements of Saturn Irregular Satellites are consistent with other Irregular Satellites populations as found in previous works and reinforcing the observation that the lack of ultra red objects among the irregular satellites is a real feature that separates them from the trans-Neptunian objects (their posited source population).
