标题： 联星的偏振测量 显示英文标题

标题： Polarimetry of binary stars

摘要： 天文偏振测量是一种强大的技术，可以提供有时通过其他类型的观测难以或无法获得的物理信息。 几乎每一类双星都可以从偏振观测中受益：前主序天体、密近或接触双星、物质转移系统、演化双星、爆发变星、掩食双星等。 在这些系统中，偏振测量可以帮助确定恒星周围或双星周围的物质分布几何结构，提供有关不对称性和各向异性信息，识别被遮蔽的源，绘制恒星黑子图，探测磁场，并确定轨道参数，仅举几例。 特别是，轨道倾角对于一个双星系统来说是非常重要的信息，因为它可以引导确定分量的质量，这是决定恒星初始结构和后续演化的基本参数。 本文综述将展示偏振技术在研究双星中的有用性，包括各种双星系统的成果示例以及模型概述，其中包括用于检索轨道倾角的模型。 显示英文摘要

摘要： Astronomical polarimetry is a powerful technique that can provide physical information sometimes difficult or impossible to obtain by any other type of observation. Almost every class of binary star can benefit from polarimetric observations: pre-main-sequence objects, close or contact binaries, mass-transfer systems, evolved binaries, cataclysmic variables, eclipsing binaries, etc. In these systems, polarimetry can help determine the geometry of the circumstellar or circumbinary matter distribution, yield information on asymmetries and anisotropies, identify obscured sources, map starspots, detect magnetic fields, and establish orbital parameters, to name just a few examples. The orbital inclination in particular is a very important piece of information for a binary system because it can lead to the determination of the components' masses, the fundamental parameter that determines a star's initial structure and subsequent evolution. This review will illustrate the usefulness of polarimetric techniques for the study of binary stars, with examples of results obtained for a variety of binary systems, and an overview of models, including those used to retrieve the orbital inclination.