L. R. Bedin, J. Dietrich, A. J. Burgasser, D. Apai, M. Libralato, M. Griggio, C. Fontanive, D. Pourbaix
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引用次数: 0
摘要
褐矮星双星系统 Luhman 16 AB 在天空中的运动。它与地球的距离不到 2 pc，是距离地球最近的此类双星。(上图：）HST 监测到的围绕 Luhman 16 AB 的整个 4.7ʹ × 4ʹ 区域。(下图：）上图中用红色标出的 25ʺ × 7ʺ 矩形区域的放大图，显示了最近 HST 观测所监测到的 Luhman 16 A 和 B 在 7.4 年期间在天空中的完整轨迹。蓝色和品红色曲线分别表示有视差和无视差时 Luhman AB 的天体测量解决方案。有关搜索围绕褐矮星成分之一运行的疑似系外行星的详情，请参见 Bedin 等人，本期，e230158。
Motion on the sky of the brown dwarf binary system Luhman 16 AB. At a distance of less than 2 pc, it is known as the nearest pair of this type to Earth. (Top:) The entire 4.7ʹ × 4ʹ region surrounding Luhman 16 AB, as monitored by HST. (Bottom:) Zoom-in of the 25ʺ × 7ʺ rectangular region indicated in red in the top panel, showing the complete trajectory in the sky of Luhman 16 A and B during the period of 7.4 years monitored by recent HST observations. The astrometric solution for the Luhman AB barycenter, with and without parallax is indicated by blue and magenta curves, respectively. For details about the search for a suspected exoplanet orbiting one of the brown dwarf components see Bedin et al., this issue, e230158.
期刊介绍：
Astronomische Nachrichten, founded in 1821 by H. C. Schumacher, is the oldest astronomical journal worldwide still being published. Famous astronomical discoveries and important papers on astronomy and astrophysics published in more than 300 volumes of the journal give an outstanding representation of the progress of astronomical research over the last 180 years. Today, Astronomical Notes/ Astronomische Nachrichten publishes articles in the field of observational and theoretical astrophysics and related topics in solar-system and solar physics. Additional, papers on astronomical instrumentation ground-based and space-based as well as papers about numerical astrophysical techniques and supercomputer modelling are covered. Papers can be completed by short video sequences in the electronic version. Astronomical Notes/ Astronomische Nachrichten also publishes special issues of meeting proceedings.
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