V1311 Ori的家族：一个年轻的六元组系统还是一个迷你星系团？
The family of V1311 Ori: a young sextuple system or a mini-cluster?
摘要：
一个包含V1311猎户座的四颗活动M型矮星的紧密结合群在盖亚附近的恒星目录中被发现。位于39 pc的距离，它可能与β Picasso和32 Ori移动集团有关的运动学，等时年龄和其他年轻指标（Ha发射，锂的存在和快速旋转）。最亮的恒星A是一颗已知的近距离双星，其初步的80年视光谱轨道已经确定。恒星B在这里被分解成0.08”的一对，而最暗的恒星C和D可能是单颗。考虑到非层次结构，预计分离约为10 kau，这可能是一个年轻的六元组系统，也可能是一个绑定但动态不稳定的迷你集群（Czazium），迄今为止避免了破坏。这个主序前系统在移动的群体和广泛的等级制度之间架起了桥梁。
英文摘要：
A compact bound group of four active M-type dwarfs containing V1311 Ori is identified in the Gaia catalog of nearby stars. Located at a distance of 39 pc, it is likely related to the beta Pictoris and 32 Ori moving groups by kinematics, isochronal age, and other indicators of youth (Halpha emission, presence of lithium, and fast rotation). The brightest star A is a known close binary, for which a preliminary 80-yr visual-spectroscopic orbit is determined. Star B is resolved here into a 0.08" pair, and the faintest stars C and D are probably single. Considering the non-hierarchical configuration with projected separations of ~10 kau, this could be either a young sextuple system or a bound but dynamically unstable mini-cluster (trapezium) that avoided disruption so far. This pre-main-sequence system bridges the gap between moving groups and wide hierarchies.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
