ROME III. 阿雷西博对5 GHz星-行星相互作用的搜寻
ROME III. The Arecibo Search for Star-Planet Interactions at 5 GHz
AI总结：
本文利用阿雷西博望远镜在5 GHz对八个系外行星系统开展迄今频率覆盖最广的射电巡天，未探测到系外行星引发的恒星射电暴，并结合轨道相位覆盖与等离子体流-障碍物范式分析了磁星-行星相互作用的探测前景。
摘要：
经过近三十年的发现，许多系外行星系统已被详细研究和表征，但有一个重要例外：系外行星磁场。尽管许多巡天试图探测来自系外行星的磁层射电辐射以直接测量其磁场强度，但至今尚未获得明确探测。然而，通过测量系外行星对其宿主恒星的影响（即磁星-行星相互作用）来间接探测系外行星磁场，近年来作为一种替代发现方法日益受到关注。本文是ROME（磁化系外行星射电观测）系列的第三篇论文，介绍了对八个可能发生星-行星相互作用的邻近系外行星宿主系统进行的定向射电巡天结果。该巡天使用阿雷西博射电望远镜在约5 GHz频率进行，具有迄今最宽的频率覆盖范围，同时在小于1秒的积分时间内提供毫央斯基（mJy）级灵敏度。未探测到系外行星引发的恒星射电暴。本文描述了磁星-行星相互作用候选系统的轨道相位覆盖情况，并在等离子体流-障碍物范式以及在其他波段搜寻星-行星相互作用的背景下对巡天结果进行了分析。
英文摘要：
After nearly three decades of discovery, many exoplanetary systems have been studied and characterized in detail with one important exception: exoplanet magnetism. Although many surveys sought to detect magnetospheric radio emissions from exoplanets to directly measure their magnetic field strengths, they have yet to reveal an unambiguous detection. However, the indirect detection of exoplanet magnetic fields by measuring their influence on their host stars via magnetic star-planet interactions has recently gained prominence as an alternative method of discovery. This third paper of the ROME (Radio Observations of Magnetized Exoplanets) series presents the results of a targeted radio survey of eight nearby exoplanet-hosting systems that may engage in star-planet interactions. This survey, conducted with the Arecibo radio telescope at $\sim$5 GHz, has the greatest frequency coverage of any to date, while providing mJy-level sensitivity over $<$1 s integration times. No exoplanet-induced stellar radio bursts were detected. The orbital phase coverage of candidate systems for magnetic star-planet interactions is described, and the survey results are examined within the context of the plasma flow-obstacle paradigm and searches for star-planet interactions at other wavelengths.
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