Kavli Affiliate: Li Xin Li
| First 5 Authors: Zhen Cao, F. Aharonian, Q. An, Axikegu, Y. X. Bai
| Summary:
We present the first catalog of very-high energy and ultra-high energy
$gamma$-ray sources detected by the Large High Altitude Air Shower Observatory
(LHAASO), using 508 days of data collected by the Water Cherenkov Detector
Array (WCDA) from March 2021 to September 2022 and 933 days of data recorded by
the Kilometer Squared Array (KM2A) from January 2020 to September 2022. This
catalog represents the most sensitive $E > 1$ TeV gamma-ray survey of the sky
covering declination from $-$20$^{circ}$ to 80$^{circ}$. In total, the
catalog contains 90 sources with extended size smaller than $2^circ$ and with
significance of detection at $> 5sigma$. For each source, we provide its
position, extension and spectral characteristics. Furthermore, based on our
source association criteria, 32 new TeV sources are proposed in this study.
Additionally, 43 sources are detected with ultra-high energy ($E > 100$ TeV)
emission at $> 4sigma$ significance level.
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