Observations of the brightest UHE Gamma-Ray Sources With the LHAASO-KM2A

LHAASO collaboration

Observations of the brightest UHE Gamma-Ray Sources With the LHAASO-KM2A

LHAASO collaboration

Department of Physics

Research output: Contribution to journal › Conference article › peer-review

Abstract

Cosmic rays are high-energy charged particles that come from outer space. They play an important role in the evolution of our Galaxy. Gamma-ray emission produced by cosmic rays is a direct probe of cosmic rays and their accelerators. As a key sub-array of the Large High Altitude Air Shower Observatory (LHAASO), KM2A is the most sensitive gamma-ray detector at ultra-high energy (UHE, >100 TeV) band. Here, we report four of the brightest UHE sources measured by LHAASO, LHAASO J1825-1326, LHAASO J1908+0621, LHAASO J2108+5157 and LHAASO J2226+6057. The morphology and spectral energy distribution of these sources are studied respectively using the KM2A data collected from December 2019 to December 2020. The origin of the UHE gamma-ray emission is also discussed taking into account the implications from multi-wavelength observations.

Original language	English
Article number	847
Journal	Proceedings of Science
Volume	395
Publication status	Published - 2022 Mar 18
Event	37th International Cosmic Ray Conference, ICRC 2021 - Virtual, Berlin, Germany Duration: 2021 Jul 12 → 2021 Jul 23

All Science Journal Classification (ASJC) codes

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Cite this

@article{f4254eecb9dd44d199a77ff4c784ab31,

title = "Observations of the brightest UHE Gamma-Ray Sources With the LHAASO-KM2A",

abstract = "Cosmic rays are high-energy charged particles that come from outer space. They play an important role in the evolution of our Galaxy. Gamma-ray emission produced by cosmic rays is a direct probe of cosmic rays and their accelerators. As a key sub-array of the Large High Altitude Air Shower Observatory (LHAASO), KM2A is the most sensitive gamma-ray detector at ultra-high energy (UHE, >100 TeV) band. Here, we report four of the brightest UHE sources measured by LHAASO, LHAASO J1825-1326, LHAASO J1908+0621, LHAASO J2108+5157 and LHAASO J2226+6057. The morphology and spectral energy distribution of these sources are studied respectively using the KM2A data collected from December 2019 to December 2020. The origin of the UHE gamma-ray emission is also discussed taking into account the implications from multi-wavelength observations.",

author = "{LHAASO collaboration} and Sha Wu and Chen, {Song Zhan} and Liu, {Ruo Yu} and Zhen Cao and F. Aharonian and Q. An and Axikegu and Bai, {L. X.} and Bai, {Y. X.} and Bao, {Y. W.} and D. Bastieri and Bi, {X. J.} and Bi, {Y. J.} and H. Cai and Cai, {J. T.} and Zhe Cao and J. Chang and Chang, {J. F.} and Chen, {B. M.} and Chen, {E. S.} and J. Chen and Liang Chen and Long Chen and Chen, {M. J.} and Chen, {M. L.} and Chen, {Q. H.} and Chen, {S. H.} and Chen, {S. Z.} and Chen, {T. L.} and Chen, {X. L.} and Y. Chen and N. Cheng and Cheng, {Y. D.} and Cui, {S. W.} and Cui, {X. H.} and Cui, {Y. D.} and {D{\textquoteright}Ettorre Piazzoli}, B. and Dai, {B. Z.} and Dai, {H. L.} and Dai, {Z. G.} and Danzengluobu and {della Volpe}, D. and Dong, {X. J.} and Duan, {K. K.} and Fan, {J. H.} and Fan, {Y. Z.} and Fan, {Z. X.} and J. Fang and K. Fang and K. Li",

note = "Publisher Copyright: {\textcopyright} Copyright owned by the author(s).; 37th International Cosmic Ray Conference, ICRC 2021 ; Conference date: 12-07-2021 Through 23-07-2021",

year = "2022",

month = mar,

day = "18",

language = "English",

volume = "395",

journal = "Proceedings of Science",

issn = "1824-8039",

publisher = "Sissa Medialab Srl",

}

TY - JOUR

T1 - Observations of the brightest UHE Gamma-Ray Sources With the LHAASO-KM2A

AU - LHAASO collaboration

AU - Wu, Sha

AU - Chen, Song Zhan

AU - Liu, Ruo Yu

AU - Cao, Zhen

AU - Aharonian, F.

AU - An, Q.

AU - Axikegu,

AU - Bai, L. X.

AU - Bai, Y. X.

AU - Bao, Y. W.

AU - Bastieri, D.

AU - Bi, X. J.

AU - Bi, Y. J.

AU - Cai, H.

AU - Cai, J. T.

AU - Cao, Zhe

AU - Chang, J.

AU - Chang, J. F.

AU - Chen, B. M.

AU - Chen, E. S.

AU - Chen, J.

AU - Chen, Liang

AU - Chen, Long

AU - Chen, M. J.

AU - Chen, M. L.

AU - Chen, Q. H.

AU - Chen, S. H.

AU - Chen, S. Z.

AU - Chen, T. L.

AU - Chen, X. L.

AU - Chen, Y.

AU - Cheng, N.

AU - Cheng, Y. D.

AU - Cui, S. W.

AU - Cui, X. H.

AU - Cui, Y. D.

AU - D’Ettorre Piazzoli, B.

AU - Dai, B. Z.

AU - Dai, H. L.

AU - Dai, Z. G.

AU - Danzengluobu,

AU - della Volpe, D.

AU - Dong, X. J.

AU - Duan, K. K.

AU - Fan, J. H.

AU - Fan, Y. Z.

AU - Fan, Z. X.

AU - Fang, J.

AU - Fang, K.

AU - Li, K.

PY - 2022/3/18

Y1 - 2022/3/18

N2 - Cosmic rays are high-energy charged particles that come from outer space. They play an important role in the evolution of our Galaxy. Gamma-ray emission produced by cosmic rays is a direct probe of cosmic rays and their accelerators. As a key sub-array of the Large High Altitude Air Shower Observatory (LHAASO), KM2A is the most sensitive gamma-ray detector at ultra-high energy (UHE, >100 TeV) band. Here, we report four of the brightest UHE sources measured by LHAASO, LHAASO J1825-1326, LHAASO J1908+0621, LHAASO J2108+5157 and LHAASO J2226+6057. The morphology and spectral energy distribution of these sources are studied respectively using the KM2A data collected from December 2019 to December 2020. The origin of the UHE gamma-ray emission is also discussed taking into account the implications from multi-wavelength observations.

AB - Cosmic rays are high-energy charged particles that come from outer space. They play an important role in the evolution of our Galaxy. Gamma-ray emission produced by cosmic rays is a direct probe of cosmic rays and their accelerators. As a key sub-array of the Large High Altitude Air Shower Observatory (LHAASO), KM2A is the most sensitive gamma-ray detector at ultra-high energy (UHE, >100 TeV) band. Here, we report four of the brightest UHE sources measured by LHAASO, LHAASO J1825-1326, LHAASO J1908+0621, LHAASO J2108+5157 and LHAASO J2226+6057. The morphology and spectral energy distribution of these sources are studied respectively using the KM2A data collected from December 2019 to December 2020. The origin of the UHE gamma-ray emission is also discussed taking into account the implications from multi-wavelength observations.

UR - http://www.scopus.com/inward/record.url?scp=85145613436&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85145613436&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:85145613436

SN - 1824-8039

VL - 395

JO - Proceedings of Science

JF - Proceedings of Science

M1 - 847

T2 - 37th International Cosmic Ray Conference, ICRC 2021

Y2 - 12 July 2021 through 23 July 2021

ER -

Observations of the brightest UHE Gamma-Ray Sources With the LHAASO-KM2A

Abstract

All Science Journal Classification (ASJC) codes

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