标题： 发现遥远系外行星的新方法 II：信噪比问题 显示英文标题

标题： A New Method for the Discovery of the Distant Exoplanets II: Question of Signal-to-Noise Ratio

摘要： 轨道周期较长的系外行星难以通过现有方法发现。 我们的第一篇出版物（Lerner, P., A. Mayer, T. E. Sullivan，2023，一种发现遥远系外行星的新方法，SPIE 会议论文集 12680：126802(M)）提出了一种受哈伯-布朗-特里斯（HBT）干涉测量法启发的方法，用于发现对宿主恒星影响非常缓慢变化的系外行星。 传统的HBT干涉测量法测量相关函数的模值。 对HBT进行微小修改可以确定其实部。 同时观察这两种特性，例如在双筒望远镜设置中，对发光物体的不对称性极其敏感。 然而，HBT的信号噪声比（SNR）非常小，使得该方法的应用变得困难。 在本文中，我们讨论了增强该方法低SNR的可能性。 显示英文摘要

摘要： Exoplanets with a long orbital period are difficult to discover by extant methods. Our first publication (Lerner, P., A. Mayer, T. E. Sullivan. 2023. A new method for the discovery of the distant exoplanets. SPIE Proceedings 12680: 126802(M)) proposed a Hanbury-Brown-Twiss (HBT) interferometry-inspired method to find exoplanets with a very slow-changing influence on their host star. Traditional HBT interferometry measured the modulus of the correlation function. Slight modification of the HBT can determine its real part. Simultaneous observation of both characteristics, e.g. in a binocular setting of telescopes, is exceptionally sensitive to the asymmetry of the luminous object. However, the issue of a very small signal-to-noise ratio (SNR) for HBT makes application of this method difficult. In the current paper, we discuss the possibilities to enhance the low SNR of the method.