Mr
Yaocheng Chen
(Dept. of Physics, Grad. Inst. of Physics & Leung Center for Cosmology and Particle Astrophysics, National Taiwan University, Taipei, Taiwan)
Taiwan Astroparticle Radiowave Observatory for Geo-synchrotron Emissions (TAROGE) is antenna arrays sitting on high coastal mountains of Taiwan, pointing to the Pacific Ocean for the detection of near-horizon extensive air showers (EAS) induced by ultra-high energy cosmic rays and Earth-skimming tau neutrinos. TAROGE would improve the detection capability by collecting both the direct-emissions and the ocean-reflected signal on a vast area of ocean which is visible from Taiwan’s high mountains. Four TAROGE stations in Taiwan have been deployed in the past few years. Except for the first station, which is a prototype station for the purposes of radio survey and optimization of instrument parameters, other three stations are still operating.
We develop a new angular reconstruction method based on a deconvolution of radio reflection on the ground which is an important systematic effect for the near-horizon events. The response of the ground reflection is measured with a drone-borne calibration pulser. We achieved a sub-degree angular resolution for near horizon event. In this paper, we discuss details of the method and the results. A brief status report of the TAROGE project will also be reported.
Keywords
Ultra high energy cosmic rays; Radio wave; Angular reconstruction; Drone-borne calibration
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Experimental Methods & Instrumentation
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other (fill field below)
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TAROGE
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Mr
Yaocheng Chen
(Dept. of Physics, Grad. Inst. of Physics & Leung Center for Cosmology and Particle Astrophysics, National Taiwan University, Taipei, Taiwan)
Prof.
Pisin Chen
(Dept. of Physics, Grad. Inst. of Astrophys.,& Leung Center for Cosmology and Particle Astrophysics, National Taiwan University, Taipei, Taiwan)
Mr
Jian-Jung Huang
(Dept. of Physics, Grad. Inst. of Physics & Leung Center for Cosmology and Particle Astrophysics, National Taiwan University, Taipei, Taiwan)
Prof.
Ming-Huey A. Huang
(Department of Energy and Resources, National United University, Miao-Li, Taiwan)
Chung-Yun Kuo
(Dept. of Physics, Grad. Inst. of Physics & Leung Center for Cosmology and Particle Astrophysics, National Taiwan University, Taipei, Taiwan)
Prof.
Tsung-Che Liu
(Dept. of Physics, Grad. Inst. of Astrophys.,& Leung Center for Cosmology and Particle Astrophysics, National Taiwan University, Taipei, Taiwan)
Prof.
Jiwoo Nam
(Dept. of Physics, Grad. Inst. of Astrophys.,& Leung Center for Cosmology and Particle Astrophysics, National Taiwan University, Taipei, Taiwan)
Dr
Yu-Shao Shiao
(Dept. of Physics, Grad. Inst. of Astrophys.,& Leung Center for Cosmology and Particle Astrophysics, National Taiwan University, Taipei, Taiwan)
Prof.
Min-Zu Wang
(Dept. of Physics, Grad. Inst. of Astrophys.,& Leung Center for Cosmology and Particle Astrophysics, National Taiwan University, Taipei, Taiwan)
Mr
Shih-Hao Wang
(Dept. of Physics, Grad. Inst. of Physics & Leung Center for Cosmology and Particle Astrophysics, National Taiwan University, Taipei, Taiwan)
Mr
Yu-Hsin Wang
(Dept. of Physics, Grad. Inst. of Physics & Leung Center for Cosmology and Particle Astrophysics, National Taiwan University, Taipei, Taiwan)
