ARISE（Auger 无线电填充 SKALA 扩展）首次空气簇射测量
The Auger Radio Infill SKALA Extension (ARISE): First Air-Shower Measurements
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中文总结 AI 辅助
ARISE在奥格天文台部署18个SKALA v2天线，首次测量证实其能探测近垂直宇宙射线空气簇射的无线电信号，并验证了与表面探测器符合的到达方向重建。
中文摘要 AI 辅助
ARISE（Auger 无线电填充 SKALA 扩展）于2025年在皮埃尔·奥格天文台安装，用于探测能量约为或高于100 PeV的近垂直宇宙射线空气簇射在50-350 MHz频段内的无线电发射。该阵列由18个SKALA v2天线组成，部署在433米间距表面探测器阵列（SD-433）的一个站点周围，该站点为ARISE提供触发信号。我们展示了ARISE的首次测量结果，并证实探测到了与广延空气簇射相关的无线电脉冲。无线电信号与SD-433事件在时间上符合，且从无线电和表面探测器信号重建的到达方向比较确认了ARISE对空气簇射的测量。这些观测提供了对探测器设置的首轮评估，并展示了ARISE在近垂直空气簇射无线电探测方面的潜力。
英文摘要
The Auger Radio Infill SKALA Extension (ARISE) was installed at the Pierre Auger Observatory in 2025 to detect the radio emission in the band of $50-350\,$MHz of near-vertical cosmic-ray air showers of energies around and above $100\,$PeV. The array comprises 18 SKALA~v2 antennas deployed around one of the surface-detector stations of the $433\,$m array (SD-433), which provides the trigger for ARISE. We present first measurements with ARISE and show the detection of radio pulses associated with extensive air showers. Radio signals are found in coincidence with SD-433 events, and a comparison of the arrival directions reconstructed from the radio and surface detector signals confirms the measurement of air showers with ARISE. These observations provide a first assessment of the detector setup and demonstrate the potential of ARISE for radio detection of near-vertical air showers.
