在VVV b294区域中未分辨双星的识别：利用虚拟天文台的专业-业余合作
Identification of unresolved binaries in the VVV b294 tile: A Pro-Am collaboration using the Virtual Observatory
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中文总结 AI 辅助
该研究利用公开数据，通过检查b294区域内M矮星目录，采用多种方法识别未分辨双星，给出大量候选体和已知双星，重新评估相关参数，证明盖亚探测影响小，为恒星双星研究提供了新成果。
中文摘要 AI 辅助
恒星双星和多星系统是常见天体。它们的识别和特征描述主要受当前仪器的角分辨率、巡天深度和动态范围限制。对于银道面，恒星拥挤使这些研究更复杂。我们旨在利用公开数据，从VVV巡天的b294区域中识别具有良好天体测量解且主星为M矮星的未分辨双星。我们检查b294区域内500秒差距内的M矮星目录，采用基于盖亚数据发布3统计参数的双星示踪剂、多波段测光和文献信息。我们重新评估通常用于双星检测的天体测量和测光参数，在密集恒星场中建立新边界并验证现有边界。我们将这些结果与太阳附近的结果进行比较。我们给出了990个未分辨双星候选体和43个已知双星，包括五个可能的三合星系统。这些占目录的13%，在覆盖良好的区域升至14.9%。双星模型SED拟合得出98颗主星的有效温度，其伴星候选体的性质表明近一半可能是次恒星天体。我们选出120个最有前途的双星候选体。计算得到的切向速度表明95%的研究双星候选体属于年轻盘族（τ<=1 Ga）。我们证明附近盖亚探测对统计参数的影响很小，能施加与在较不拥挤区域类似的限制。
英文摘要
Stellar binaries and multiples are common objects. Their identification and characterization are primarily limited by the angular resolution of current instrumentation, survey depth and dynamic range. Towards the Galactic plane, stellar crowding further complicates these studies. We aim to identify unresolved binaries with good astrometric solutions and M dwarf primaries in the b294 field from the Vista Variables in the Vía Láctea (VVV) survey using publicly available data. We examine the catalogue of M dwarfs within 500 pc in the b294 tile, employing binarity tracers based on statistical parameters from Gaia Data Release 3, multi-band photometry, and information in the literature. We reassess the astrometric and photometric parameters typically used for binary detection, establishing new boundaries and validating existing ones in the dense stellar field examined. We compare these results with those obtained in the solar vicinity. We present 990 unresolved binary candidates and 43 previously known binaries, including five possible triple systems. These represent the 13\% of the catalogue, rising to 14.9\% in well-covered regions. Binary-model SED fitting yields effective temperatures for 98 primary stars, with the properties of their secondary candidates indicating that nearly half may be substellar objects. We select 120 of the most promising binary candidates. Tangential velocities, where calculated, place 95\% of the studied binary candidates within the young disc population (tau <= 1 Ga). We demonstrate that the influence of nearby Gaia detections on the statistical parameters is small, allowing constraints similar to those that are applied in less crowded regions.
