论文标题

来自系外行星的微化无线电发射

Microlensed Radio Emission from Exoplanets

论文作者

Shiohira, Yuta, Terada, Yuka, Mukuno, Den, Fujii, Yuka, Takahashi, Keitaro

论文摘要

在本文中,我们研究了系外行星,尤其是热木星的无线电发射的可检测性,这些可检测性通过重力微透明而放大。由于热木星的轨道周期比微透明的特征时间尺度短得多,因此放大曲线具有独特的波浪特征,具体取决于轨道参数。此功能可用于识别系外行星的无线电发射,除了放大倍数外,还可以更轻松地直接检测系外行星。我们还估计,假设Lofar和平方公里阵列的第一阶段,微透镜行星无线电排放的可检测水平的预期事件速率红色。

In this paper, we investigate the detectability of radio emission from exoplanets, especially hot Jupiters, which are magnified by gravitational microlensing. Because hot Jupiters have orbital periods much shorter than the characteristic timescale of microlensing, the magnification curve has a unique wavy feature depending on the orbital parameters. This feature is useful to identify radio emission from exoplanets and, in addition to magnification, makes it easier to detect exoplanets directly. We also estimate the expected event rate red of the detectable level of microlensed planetary radio emissions, assuming the LOFAR and the first phase of the Square Kilometre Array.

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