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The Second LHAASO Collaboration Conference in 2023

24–29 Nov 2023
Tianfu Cosmic Ray Research Center
Asia/Shanghai timezone

contact

Observation of LHAASO J1843-0338 : implication for the origin of its UHE gamma-ray emission

26 Nov 2023, 14:16
22m
Tianfu Cosmic Ray Research Center

Tianfu Cosmic Ray Research Center

No. 1500 Kezhi Road, Tianfu New Area, Chengdu, China
Oral report (20min) Young massive star cluster conference contributions

Speaker

Rui Zhang (pmo)

Description

We analyze the LHAASO-KM2A data updated to 2023-07-31 and LHAASO-WCDA data updated to 2023-05 to study the morphological and spectral features of this source. Adopting the millimeter data from a multi-CO line survey towards LHAASO J1843-0338, we find a superbubble associated with the gamma-ray emission detected by LHAASO. Our further morphological and model studies on this source, suggest that its very-high-energy gamma-ray emission likely originates from the superbubble. This provides evidence of Superbubbles as potential PeVatron Candidates.

Primary authors

Chuandong Gao Haoning He Rui Zhang (pmo)

Co-authors

Youliang Feng Chong Ge Yunzhi Shen Yuliang Xin Min Zha Ping Zhou Xin Zhou

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