TAROGE-M: Radio Observatory on Antarctic High Mountain for Detecting Near-Horizon Ultra-High Energy Air Showers

Wang SH, Chen P, Chen Y, Huang JJ, Huang MHA, Kuo CY, Leung CH, Liu TC, Nam J, Shiao YSJ, Wang MZ, Wang SH, Wang YH, Anker A, Baldi P, Barwick SW, Beise J, Bernhoff H, Besson DZ, Bingefors N, Fernández DG, Gaswint G, Glaser C, Hallgren A, Hanson JC, Klein SR, Kleinfelder SA, Lahmann R, Liu J, Magnuson M, McAleer S, Nelles A, Novikov A, Paul MP, Persichilli C, Plaisier I, Rice-Smith R, Tatar J, Welling C, Zhao L (2022)

Publication Type: Conference contribution

Publication year: 2022

Journal

PoS - Proceedings of Science SISSA

Publisher: Sissa Medialab Srl

Book Volume: 395

Conference Proceedings Title: Proceedings of Science

Event location: Virtual, Berlin, DEU

Abstract

The TAROGE-M observatory is an autonomous antenna array on the top of Mt. Melbourne (∼2700 m altitude) in Antarctica, designed to detect radio pulses from ultra-high energy (over 1017 eV) air showers coming from near-horizon directions. The targeted sources include cosmic rays, Earth-skimming tau neutrinos, and most of all, the anomalous near-horizon upward-going events of yet unknown origin discovered by ANITA experiments. The detection concept follows that of ANITA: monitoring large area of ice from high-altitude and taking advantage of strong geomagnetic field and quiet radio background in Antarctica, whereas having significantly greater livetime and scalability. The TAROGE-M station, upgraded from its prototype built in 2019, was deployed in January 2020, and consists of 6 log-periodic dipole antennas pointing horizontally with bandwidth of 180-450 MHz. The station is then calibrated with drone-borne transmitter, with which the event reconstruction obtained ∼0.3° angular resolution. The station was then smoothly operating in the following month, with the live time of ∼ 30 days, before interrupted by a power problem, and its online filtering has identified several candidate cosmic-ray events and sent out via satellite communication. In this paper, the instrumentation of the station for polar and high-altitude environment, its radio-locating performance, the preliminary result on cosmic-ray detection, and the future extension plan are presented.

Authors with CRIS profile

Robert Lahmann Lehrstuhl für Experimentalphysik (Astroteilchenphysik) Anna Nelles

Involved external institutions

National Taiwan University (NTU) TW Taiwan (TW) National United University TW Taiwan (TW) University of California Irvine US United States (USA) (US) Uppsala University SE Sweden (SE) Deutsches Elektronen-Synchrotron DESY DE Germany (DE) Whittier College US United States (USA) (US) Lawrence Berkeley National Laboratory (LBNL) US United States (USA) (US) University of Kansas (KU) US United States (USA) (US)

How to cite

APA:

Wang, S.H., Chen, P., Chen, Y., Huang, J.J., Huang, M.H.A., Kuo, C.Y.,... Zhao, L. (2022). TAROGE-M: Radio Observatory on Antarctic High Mountain for Detecting Near-Horizon Ultra-High Energy Air Showers. In Proceedings of Science. Virtual, Berlin, DEU: Sissa Medialab Srl.

MLA:

Wang, Shih Hao, et al. "TAROGE-M: Radio Observatory on Antarctic High Mountain for Detecting Near-Horizon Ultra-High Energy Air Showers." Proceedings of the 37th International Cosmic Ray Conference, ICRC 2021, Virtual, Berlin, DEU Sissa Medialab Srl, 2022.

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