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  • Wang, Shih-HaoNatl Taiwan Univ, Dept Phys, Taipei 10617, Taiwan.;Natl Taiwan Univ, Leung Ctr Cosmol & Particle Astrophys, Taipei 10617, Taiwan. (författare)

TAROGE-M : radio antenna array on antarctic high mountain for detecting near-horizontal ultra-high energy air showers

  • Artikel/kapitelEngelska2022

Förlag, utgivningsår, omfång ...

  • 2022-11-11
  • IOP Publishing,2022
  • printrdacarrier

Nummerbeteckningar

  • LIBRIS-ID:oai:DiVA.org:uu-502674
  • https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-502674URI
  • https://doi.org/10.1088/1475-7516/2022/11/022DOI

Kompletterande språkuppgifter

  • Språk:engelska
  • Sammanfattning på:engelska

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Klassifikation

  • Ämneskategori:ref swepub-contenttype
  • Ämneskategori:art swepub-publicationtype

Anmärkningar

  • The TAROGE-M radio observatory is a self-triggered antenna array on top of the similar to 2700m high Mt. Melbourne in Antarctica, designed to detect impulsive geomagnetic emission from extensive air showers induced by ultra-high energy (UHE) particles beyond 1017 eV, including cosmic rays, Earth-skimming tau neutrinos, and particularly, the "ANITA anomalous events" (AAE) from near and below the horizon. The six AAE discovered by the ANITA experiment have signal features similar to tau neutrinos but that hypothesis is in tension either with the interaction length predicted by Standard Model or with the flux limits set by other experiments. Their origin remains uncertain, requiring more experimental inputs for clarification. The detection concept of TAROGE-M takes advantage of a high altitude with synoptic view toward the horizon as an efficient signal collector, and the radio quietness as well as strong and near vertical geomagnetic field in Antarctica, enhancing the relative radio signal strength. This approach has a low energy threshold, high duty cycle, and is easy to extend for quickly enlarging statistics. Here we report experimental results from the first TAROGEM station deployed in January 2020, corresponding to approximately one month of livetime. The station consists of six receiving antennas operating at 180-450 MHz, and can reconstruct source directions of impulsive events with an angular resolution of similar to 0.3 ffi, calibrated in situ with a drone-borne pulser system. To demonstrate TAROGE-M's ability to detect UHE air showers, a search for cosmic ray signals in 25.3-days of data together with the detection simulation were conducted, resulting in seven identified candidates. The detected events have a mean reconstructed energy of 0.95+0.46 -0.31 EeV and zenith angles ranging from 25 ffi to 82 ffi, with both distributions agreeing with the simulations, indicating an energy threshold at about 0.3 EeV. The estimated cosmic ray flux at that energy is 1.2+0.7 -0.9x10(-16) eV(-1) km(-2) yr(-1) sr(-1), also consistent with results of other experiments. The TAROGE-M sensitivity to AAEs is approximated by the tau neutrino exposure with simulations, which suggests comparable sensitivity as ANITA's at around 1 EeV energy with a few station-years of operation. These first results verified the station design and performance in a polar and high-altitude environment, and are promising for further discovery of tau neutrinos and AAEs after an extension in the near future.

Ämnesord och genrebeteckningar

Biuppslag (personer, institutioner, konferenser, titlar ...)

  • Nam, JiwooNatl Taiwan Univ, Dept Phys, Taipei 10617, Taiwan.;Natl Taiwan Univ, Leung Ctr Cosmol & Particle Astrophys, Taipei 10617, Taiwan. (författare)
  • Chen, PisinNatl Taiwan Univ, Dept Phys, Taipei 10617, Taiwan.;Natl Taiwan Univ, Leung Ctr Cosmol & Particle Astrophys, Taipei 10617, Taiwan.;Stanford Univ, Kavli Inst Particle Astrophys & Cosmol, SLAC Natl Accelerator Lab, Stanford, CA 94305 USA. (författare)
  • Chen, YaochengNatl Taiwan Univ, Dept Phys, Taipei 10617, Taiwan.;Natl Taiwan Univ, Leung Ctr Cosmol & Particle Astrophys, Taipei 10617, Taiwan. (författare)
  • Choi, Taejin (författare)
  • Ham, Young-baeKorea Polar Res Inst, Div Atmospher Sci, Incheon, South Korea.;Korea Univ Sci & Technol, Dept Polar Sci, Daejeon, South Korea. (författare)
  • Hsu, Shih-YingNatl Taiwan Univ, Dept Phys, Taipei 10617, Taiwan. (författare)
  • Huang, Jian-JungNatl Taiwan Univ, Dept Phys, Taipei 10617, Taiwan.;Natl Taiwan Univ, Leung Ctr Cosmol & Particle Astrophys, Taipei 10617, Taiwan. (författare)
  • Huang, Ming-Huey A. (författare)
  • Jee, GeonhwaKorea Polar Res Inst, Div Atmospher Sci, Incheon, South Korea.;Korea Univ Sci & Technol, Dept Polar Sci, Daejeon, South Korea. (författare)
  • Jung, JongilNatl United Univ, Dept Energy Engn, Miaoli, Taiwan. (författare)
  • Kim, JieunKorea Polar Res Inst, Div Atmospher Sci, Incheon, South Korea. (författare)
  • Kuo, Chung-YunNatl Taiwan Univ, Dept Phys, Taipei 10617, Taiwan. (författare)
  • Kwon, Hyuck-JinKorea Polar Res Inst, Div Atmospher Sci, Incheon, South Korea. (författare)
  • Lee, ChangsupKorea Polar Res Inst, Div Atmospher Sci, Incheon, South Korea.;Korea Univ Sci & Technol, Dept Polar Sci, Daejeon, South Korea. (författare)
  • Leung, Chung-HeiNatl Taiwan Univ, Dept Phys, Taipei 10617, Taiwan.;Natl Taiwan Univ, Leung Ctr Cosmol & Particle Astrophys, Taipei 10617, Taiwan.;Chungnam Natl Univ, Dept Astron Space Sci & Geol, Daejeon 34134, South Korea. (författare)
  • Liu, Tsung-CheNatl Taiwan Univ, Leung Ctr Cosmol & Particle Astrophys, Taipei 10617, Taiwan.;Univ Delaware, Dept Phys & Astron, Newark, DE 19716 USA.;Natl Yang Ming Chiao Tung Univ, Dept Elect, Hsinchu 300, Taiwan. (författare)
  • Shiao, Yu-Shao J.Natl Taiwan Univ, Leung Ctr Cosmol & Particle Astrophys, Taipei 10617, Taiwan.;Natl Nano Device Labs, Hsinchu 300, Taiwan. (författare)
  • Shin, Bok-KyunNatl Taiwan Univ, Leung Ctr Cosmol & Particle Astrophys, Taipei 10617, Taiwan.;Ulsan Natl Inst Sci & Technol, Ulsan 44919, South Korea. (författare)
  • Wang, Min-ZuNatl Taiwan Univ, Dept Phys, Taipei 10617, Taiwan.;Natl Taiwan Univ, Leung Ctr Cosmol & Particle Astrophys, Taipei 10617, Taiwan. (författare)
  • Wang, Yu-HsinNatl Taiwan Univ, Dept Phys, Taipei 10617, Taiwan.;Natl Taiwan Univ, Leung Ctr Cosmol & Particle Astrophys, Taipei 10617, Taiwan. (författare)
  • Anker, AstridUniv Calif Irvine, Dept Phys & Astron, Irvine, CA USA. (författare)
  • Barwick, Steven W.Univ Calif Irvine, Dept Phys & Astron, Irvine, CA USA. (författare)
  • Besson, Dave Z.Univ Kansas, Dept Phys & Astron, Lawrence, KS 66045 USA. (författare)
  • Bouma, SjoerdDESY, D-15738 Zeuthen, Germany. (författare)
  • Cataldo, MaddalenaFriedrich Alexander Univ Erlangen Nurnberg, ECAP, D-91058 Erlangen, Germany. (författare)
  • Gaswint, GeoffreyUniv Calif Irvine, Dept Phys & Astron, Irvine, CA USA. (författare)
  • Glaser, ChristianUppsala universitet,Institutionen för fysik och astronomi(Swepub:uu)chrgl330 (författare)
  • Hallmann, Steffen (författare)
  • Hanson, Jordan C.Whittier Coll, Dept Phys, Whittier, CA 90602 USA. (författare)
  • Henrichs, JakobDESY, D-15738 Zeuthen, Germany.;Friedrich Alexander Univ Erlangen Nurnberg, ECAP, D-91058 Erlangen, Germany. (författare)
  • Kleinfelder, Stuart A.Univ Calif Irvine, Dept Elect Engn & Comp Sci, Irvine, CA 92697 USA. (författare)
  • Lahmann, RobertFriedrich Alexander Univ Erlangen Nurnberg, ECAP, D-91058 Erlangen, Germany. (författare)
  • Meyers, Zachary S.DESY, D-15738 Zeuthen, Germany.;Friedrich Alexander Univ Erlangen Nurnberg, ECAP, D-91058 Erlangen, Germany. (författare)
  • Nelles, AnnaDESY, D-15738 Zeuthen, Germany.;Friedrich Alexander Univ Erlangen Nurnberg, ECAP, D-91058 Erlangen, Germany. (författare)
  • Novikov, AlexanderUniv Kansas, Dept Phys & Astron, Lawrence, KS 66045 USA. (författare)
  • Paul, Manuel P.Univ Calif Irvine, Dept Phys & Astron, Irvine, CA USA. (författare)
  • Pyras, LillyFriedrich Alexander Univ Erlangen Nurnberg, ECAP, D-91058 Erlangen, Germany. (författare)
  • Persichilli, ChristopherUniv Calif Irvine, Dept Phys & Astron, Irvine, CA USA. (författare)
  • Plaisier, IlseDESY, D-15738 Zeuthen, Germany.;Friedrich Alexander Univ Erlangen Nurnberg, ECAP, D-91058 Erlangen, Germany. (författare)
  • Rice-Smith, RyanUniv Calif Irvine, Dept Phys & Astron, Irvine, CA USA. (författare)
  • Seikh, Mohammad F. H.Univ Kansas, Dept Phys & Astron, Lawrence, KS 66045 USA. (författare)
  • Tatar, JoulienUniv Calif Irvine, Res Cyberinfrastruct Ctr, Irvine, CA 92697 USA. (författare)
  • Welling, ChristophDESY, D-15738 Zeuthen, Germany.;Friedrich Alexander Univ Erlangen Nurnberg, ECAP, D-91058 Erlangen, Germany. (författare)
  • Zhao, LeshanUniv Calif Irvine, Dept Phys & Astron, Irvine, CA USA. (författare)
  • Natl Taiwan Univ, Dept Phys, Taipei 10617, Taiwan.;Natl Taiwan Univ, Leung Ctr Cosmol & Particle Astrophys, Taipei 10617, Taiwan.Natl Taiwan Univ, Dept Phys, Taipei 10617, Taiwan.;Natl Taiwan Univ, Leung Ctr Cosmol & Particle Astrophys, Taipei 10617, Taiwan.;Stanford Univ, Kavli Inst Particle Astrophys & Cosmol, SLAC Natl Accelerator Lab, Stanford, CA 94305 USA. (creator_code:org_t)

Sammanhörande titlar

  • Ingår i:Journal of Cosmology and Astroparticle Physics: IOP Publishing:111475-7516

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