论文标题
在双子座/NIRI数据中解决系列宿主星的多样性
Resolving the Multiplicity of Exoplanet Host Stars in Gemini/NIRI Data
论文作者
论文摘要
大多数恒星都有一个或多个恒星伴侣。随着系外行星继续被发现，检查行星系统以识别其出色的同伴至关重要。通过观察适当运动的变化，可以通过在宿主恒星上诱导的加速度来检测同伴。我们从Hipparcos-GAIA加速器目录（HGCA）中选择了701颗恒星，这些目录具有与Gemini/Niri收集的现有自适应光学成像数据。其中，我们研究了21颗恒星，以主持行星候选者，并使用双子座的Dragons软件减少了档案NIRI数据。我们使用NIRI图像以及HGCA中的GAIA和加速度对同伴进行了对伴侣的评估。我们检测到三个已知的可见伴侣，发现了另外两个没有可见伴侣的系统，但是星体测量结果表明可能无法解决的伴侣。
The majority of stars have one or more stellar companions. As exoplanets continue to be discovered, it is crucial to examine planetary systems to identify their stellar companions. By observing a change in proper motion, companions can be detected by the acceleration they induce on their host stars. We selected 701 stars from the Hipparcos-Gaia Catalog of Accelerations (HGCA) that have existing adaptive optics imaging data gathered with Gemini/NIRI. Of these, we examined 21 stars known to host planet candidates and reduced their archival NIRI data with Gemini's DRAGONS software. We assessed these systems for companions using the NIRI images as well as Renormalized Unit Weight Error values in Gaia and accelerations in the HGCA. We detected three known visible companions and found two more systems with no visible companions but astrometric measurements indicating likely unresolved companions.
