标题： 九个银河系内部球状星团的结构和内部运动学 显示英文标题

标题： Structure and Internal Kinematics of Nine Inner Milky Way Globular Clusters

摘要： 这项研究是更大努力的一部分，旨在更好地表征位于银河系内部银河晕和盘中的球状星团(GGCs)。 在这里，我们关注九个GGCs的内部运动学，这些数据来自在时间基线为$>$9年的空间成像。 我们利用多种途径来评估目标GGCs的动力学状态，构建投影恒星密度、自行弥散度和各向异性的径向剖面。 我们认为我们的目标GGCs中有三分之二(6/9)处于先进的动力学状态，接近(或最近经历了)核心坍缩，这得到了至少两条证据的支持：首先，我们发现自行弥散度剖面相对陡峭，与核心坍缩的GGCs的文献值一致。 其次，我们发现我们的样本平均上是各向同性的，甚至到它们的半光半径，尽管我们的目标星团之一(NGC 6380)在其半光半径$>$1$\sigma$以外表现出切向各向异性，这与在强潮汐场中演化的星团的理论预测一致。 我们的自行弥散度和各向异性剖面已公开可用。 显示英文摘要

摘要： This study constitutes part of a larger effort aimed at better characterizing the Galactic globular clusters (GGCs) located towards the inner Milky Way bulge and disk. Here, we focus on internal kinematics of nine GGCs, obtained from space-based imaging over time baselines of $>$9 years. We exploit multiple avenues to assess the dynamical state of the target GGCs, constructing radial profiles of projected stellar density, proper motion dispersion, and anisotropy. We posit that two-thirds (6/9) of our target GGCs are in an advanced dynamical state, and are close to (or have recently undergone) core collapse, supported by at least two lines of evidence: First, we find relatively steep proper motion dispersion profiles, in accord with literature values for core-collapsed GGCs. Second, we find that our sample is, in the mean, isotropic even out to their half-light radii, although one of our target clusters (NGC 6380) is tangentially anisotropic at $>$1$\sigma$ beyond its half-light radius, in accord with theoretical predictions for clusters evolving in strong tidal fields. Our proper motion dispersion and anisotropy profiles are made publicly available.