TY - JOUR
T1 - Current status of ALPACA for exploring sub-PeV gamma-ray sky in Bolivia
AU - the ALPACA Collaboration
AU - Sako, T.
AU - Aceves de la Cruz, F.
AU - Asano, S.
AU - Condori, C. A.H.
AU - de la Fuente, E.
AU - Garcia-Luna, J. L.
AU - Gomi, A.
AU - Hibino, K.
AU - Hotta, N.
AU - Jimenez-Meza, A.
AU - Katayose, Y.
AU - Kato, C.
AU - Kato, S.
AU - Kawashima, T.
AU - Kawata, K.
AU - Koi, T.
AU - Kojima, H.
AU - Kurashige, D.
AU - Lozoya, J.
AU - Mayta, R.
AU - Miranda, P.
AU - Munakata, K.
AU - Nagaya, K.
AU - Nakamura, Y.
AU - Nakazawa, Y.
AU - Nina, C.
AU - Nishizawa, M.
AU - Ogio, S.
AU - Ohnishi, M.
AU - Okukawa, S.
AU - Orozco, F.
AU - Oshima, A.
AU - Raljevich, M.
AU - Rivera, H.
AU - Saito, T.
AU - Sakakibara, Y.
AU - Sako, T. K.
AU - Shibata, S.
AU - Shiomi, A.
AU - Subieta, M.
AU - Tajima, N.
AU - Takano, W.
AU - Takita, M.
AU - Tameda, Y.
AU - Tanaka, K.
AU - Ticona, R.
AU - Toledano-Juarez, I.
AU - Tsuchiya, H.
AU - Tsunesada, Y.
AU - Udo, S.
N1 - Publisher Copyright:
© Copyright owned by the author(s) under the terms of the Creative Commons.
PY - 2022/3/18
Y1 - 2022/3/18
N2 - The Andes Large area PArticle detector for Cosmic ray physics and Astronomy (ALPACA) project is now constructing an air shower array near the Chacaltaya mountain at the altitude of 4, 740 m in Bolivia. An 82, 800 m2 surface area will be covered by 401 scintillating counters of 100 cm×100 cm×5 cm (thick). In addition to this conventional surface array, underground muon detectors covering a total of 3, 600 m2 allow precise identification of muon components in air showers. Using this array, ALPACA will explore the sub-PeV gamma-ray sky first time in the Southern hemisphere. The prime target of ALPACA is to reveal PeV cosmic-ray accelerators presumably existing in the galactic plane including the galactic center. A prototype array ALPAQUITA consisting of 97 surface counters and a 900 m2 muon detector is under construction and is planned to start data taking in 2021. The next extension to the 200 counters and 3, 600 m2 muon detectors named ALPACA (half) is scheduled for 2022. In this contribution, a general introduction to ALPACA, the current status of ALPAQUITA with its infrastructure, and the extension plan after 2022 are presented.
AB - The Andes Large area PArticle detector for Cosmic ray physics and Astronomy (ALPACA) project is now constructing an air shower array near the Chacaltaya mountain at the altitude of 4, 740 m in Bolivia. An 82, 800 m2 surface area will be covered by 401 scintillating counters of 100 cm×100 cm×5 cm (thick). In addition to this conventional surface array, underground muon detectors covering a total of 3, 600 m2 allow precise identification of muon components in air showers. Using this array, ALPACA will explore the sub-PeV gamma-ray sky first time in the Southern hemisphere. The prime target of ALPACA is to reveal PeV cosmic-ray accelerators presumably existing in the galactic plane including the galactic center. A prototype array ALPAQUITA consisting of 97 surface counters and a 900 m2 muon detector is under construction and is planned to start data taking in 2021. The next extension to the 200 counters and 3, 600 m2 muon detectors named ALPACA (half) is scheduled for 2022. In this contribution, a general introduction to ALPACA, the current status of ALPAQUITA with its infrastructure, and the extension plan after 2022 are presented.
UR - http://www.scopus.com/inward/record.url?scp=85144606969&partnerID=8YFLogxK
M3 - Artículo de la conferencia
AN - SCOPUS:85144606969
SN - 1824-8039
VL - 395
JO - Proceedings of Science
JF - Proceedings of Science
M1 - 733
T2 - 37th International Cosmic Ray Conference, ICRC 2021
Y2 - 12 July 2021 through 23 July 2021
ER -