Observations of SNR CTB 109 with LHAASO

Cao Z.; Aharonian F.; Bai Y.X.; Bao Y.W.; Bastieri D.; Bi X.J.; Bi Y.J.; Bian W.; Bukevich A.V.; Cai C.M.; Cao W.Y.; Chang J.; Chang J.F.; Chen A.M.; Chen E.S.; Chen G.H.; Chen H.X.; Chen L.; Chen M.J.; Chen M.L.; Chen Q.H.; Chen S.; Chen S.H.; Chen S.Z.; Chen T.L.; Chen X.B.; Chen X.J.; Chen Y.; Cheng N.; Cheng Y.D.; Chu M.C.; Cui M.Y.; Cui S.W.; Cui X.H.; Cui Y.D.; Dai B.Z.; Dai H.L.; Dai Z.G.; Danzengluobu; Diao Y.X.; Dong X.Q.; Duan K.K.; Fan J.H.; Fan Y.Z.; Fang J.; Fang J.H.; Fang K.; Feng C.F.; Feng H.; Feng L.; Feng S.H.; Feng X.T.; Feng Y.; Feng Y.L.; Gabici S.; Gao B.; Gao C.D.; Gao Q.; Gao W.; Gao W.K.; Ge M.M.; Ge T.T.; Geng L.S.; Giacinti G.; Gong G.H.; Gou Q.B.; Gu M.H.; Guo F.L.; Guo J.; Guo X.L.; Guo Y.Q.; Guo Y.Y.; Han Y.A.; Hannuksela O.A.; Hasan M.; He H.H.; He H.N.; He J.Y.; He X.Y.; He Y.; Hernández-Cadena S.; Hou B.W.; Hou C.; Hou X.; Hu H.B.; Hu S.C.; Huang C.; Huang D.H.; Huang J.J.; Huang T.Q.; Huang W.J.; Huang X.T.; Huang X.Y.; Huang Y.; Huang Y.Y.; Ji X.L.; Jia H.Y.; Jia K.

Observations of SNR CTB 109 with LHAASO

7

Issued Date

2025-12-30

Resource Type

Conference Paper

eISSN

18248039

DOI

10.22323/1.501.0732

Scopus ID

2-s2.0-105029049691

Journal Title

Proceedings of Science

Volume

501

Rights Holder(s)

SCOPUS

Bibliographic Citation

Proceedings of Science Vol.501 (2025)

Suggested Citation

Cao Z., Aharonian F., Bai Y.X., Bao Y.W., Bastieri D., Bi X.J., Bi Y.J., Bian W., Bukevich A.V., Cai C.M., Cao W.Y., Cao Z., Chang J., Chang J.F., Chen A.M., Chen E.S., Chen G.H., Chen H.X., Chen L., Chen L., Chen M.J., Chen M.L., Chen Q.H., Chen S., Chen S.H., Chen S.Z., Chen T.L., Chen X.B., Chen X.J., Chen Y., Cheng N., Cheng Y.D., Chu M.C., Cui M.Y., Cui S.W., Cui X.H., Cui Y.D., Dai B.Z., Dai H.L., Dai Z.G., Danzengluobu, Diao Y.X., Dong X.Q., Duan K.K., Fan J.H., Fan Y.Z., Fang J., Fang J.H., Fang K., Feng C.F., Feng H., Feng L., Feng S.H., Feng X.T., Feng Y., Feng Y.L., Gabici S., Gao B., Gao C.D., Gao Q., Gao W., Gao W.K., Ge M.M., Ge T.T., Geng L.S., Giacinti G., Gong G.H., Gou Q.B., Gu M.H., Guo F.L., Guo J., Guo X.L., Guo Y.Q., Guo Y.Y., Han Y.A., Hannuksela O.A., Hasan M., He H.H., He H.N., He J.Y., He X.Y., He Y., Hernández-Cadena S., Hou B.W., Hou C., Hou X., Hu H.B., Hu S.C., Huang C., Huang D.H., Huang J.J., Huang T.Q., Huang W.J., Huang X.T., Huang X.Y., Huang Y., Huang Y.Y., Ji X.L., Jia H.Y., Jia K. Observations of SNR CTB 109 with LHAASO. Proceedings of Science Vol.501 (2025). doi:10.22323/1.501.0732 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/114905

Title

Observations of SNR CTB 109 with LHAASO

Author(s)

Cao Z.
Aharonian F.
Bai Y.X.
Bao Y.W.
Bastieri D.
Bi X.J.
Bi Y.J.
Bian W.
Bukevich A.V.
Cai C.M.
Cao W.Y.
Cao Z.
Chang J.
Chang J.F.
Chen A.M.
Chen E.S.
Chen G.H.
Chen H.X.
Chen L.
Chen L.
Chen M.J.
Chen M.L.
Chen Q.H.
Chen S.
Chen S.H.
Chen S.Z.
Chen T.L.
Chen X.B.
Chen X.J.
Chen Y.
Cheng N.
Cheng Y.D.
Chu M.C.
Cui M.Y.
Cui S.W.
Cui X.H.
Cui Y.D.
Dai B.Z.
Dai H.L.
Dai Z.G.
Danzengluobu
Diao Y.X.
Dong X.Q.
Duan K.K.
Fan J.H.
Fan Y.Z.
Fang J.
Fang J.H.
Fang K.
Feng C.F.
Feng H.
Feng L.
Feng S.H.
Feng X.T.
Feng Y.
Feng Y.L.
Gabici S.
Gao B.
Gao C.D.
Gao Q.
Gao W.
Gao W.K.
Ge M.M.
Ge T.T.
Geng L.S.
Giacinti G.
Gong G.H.
Gou Q.B.
Gu M.H.
Guo F.L.
Guo J.
Guo X.L.
Guo Y.Q.
Guo Y.Y.
Han Y.A.
Hannuksela O.A.
Hasan M.
He H.H.
He H.N.
He J.Y.
He X.Y.
He Y.
Hernández-Cadena S.
Hou B.W.
Hou C.
Hou X.
Hu H.B.
Hu S.C.
Huang C.
Huang D.H.
Huang J.J.
Huang T.Q.
Huang W.J.
Huang X.T.
Huang X.Y.
Huang Y.
Huang Y.Y.
Ji X.L.
Jia H.Y.
Jia K.

Author's Affiliation

University of Chinese Academy of Sciences
Tsinghua University
Shanghai Jiao Tong University
Sun Yat-Sen University
University of Science and Technology of China
Université Paris Cité
Shandong University
Nanjing University
Chinese University of Hong Kong
Zhengzhou University
Southwest Jiaotong University
Yunnan University
Guangzhou University
Institute of High Energy Physics, Chinese Academy of Sciences
National Astronomical Observatories Chinese Academy of Sciences
Max-Planck-Institut für Kernphysik
Hebei Normal University
Institute for Nuclear Research of the Russian Academy of Sciences
Yerevan State University
China Center of Advanced Science and Technology World Laboratory
Zhejiang Lab
Purple Mountain Observatory Chinese Academy of Sciences
Shanghai Astronomical Observatory Chinese Academy of Sciences
Yunnan Observatories
Tibet University
State Key Laboratory of Particle Detection & Electronics
TIANFU Cosmic Ray Research Center
School of Physics

Corresponding Author(s)

Cao Z.

Other Contributor(s)

Mahidol University

Abstract

CTB 109 is a middle-aged shell-type supernova remnant (SNR) with bright thermal X-ray emission. The gamma-ray emission of CTB 109 exhibits a center-bright morphology, which is very consistent with its thermal X-ray emission rather than the shell-type structure in the radio band. The GeV gamma-ray spectrum shows a significant spectral curvature at a few GeV, which can well explain the lack of TeV gamma-ray emission from CTB 109. In this work, we describe the observations of CTB 109 by LHAASO, together with the updated observations by Fermi-LAT. Based on the LHAASO measurements, we will set stringent upper limits on the distribution of particles accelerated by CTB 109. We perform extensive modelling using multi-wavelength data available for CTB 109, and discuss the different emission models for leptonic and hadronic scenarios.

Keyword(s)

Multidisciplinary

URI

https://repository.li.mahidol.ac.th/handle/123456789/114905

Collections

Scopus 2025

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