光束平衡--通过来自恒星及其伴星的相对论光束信号测量二元系统
The Beam Balance -- Measuring Binary Systems via Relativistic Beaming Signals from Stars and their Companions
摘要：
在本文中，我表明，相对论光束的概念-的过程中，由一个快速移动的源发出的光被透镜朝向运动的方向-可以很容易地扩展到模拟从恒星和任何二级同伴的信号。大多数伴星的温度和质量都比它们的主星低。它们较低的质量导致更快的轨道速度，因此可能产生更大的光束效应。较低的温度将意味着它们的大部分光以较长的波长发射，其中原色的相对光度优势降低。因此，对于某些系统，次级伴星可能是观测到的长波长相对论性光束信号的主要贡献者。此外，如果在一个波长范围内观测系统，我们可以独立地约束伴星的温度，以及双星的质量和半径比。最后，我讨论了这个信号的当前和未来的观测前景，使用已知系外行星的属性来表明这样的信号可能是通过即将到来的调查观察到的。
英文摘要：
In this paper I show that the concept of relativistic beaming -- the process by which light emitted by a fast moving sources is lensed towards the direction of motion -- can be easily extended to model the signal from both the star and any secondary companions. Most companions will be cooler and less massive than their host star. Their lower mass leads to faster orbital velocities, and thus a potentially larger beaming effect. The lower temperature will mean that most of their light is emitted at longer wavelengths, where the relative photometric dominance of the primary is reduced. Thus for some systems, the secondary companion can be the main contributor to observed relativistic beaming signals at long wavelengths. Furthermore, if the system is observed over a range of wavelengths we can independently constrain the temperature of the companion, and the mass and radius ratio of the binary. To conclude I discuss the current and future observational prospects of this signal, using the properties of known exoplanets to show that such a signal may be observable by upcoming surveys.
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。
