The First LHAASO Catalog of Gamma-Ray Sources

Abstract

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). The catalog was compiled 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 main result from the most sensitive large coverage gamma-ray survey of the sky above 1 TeV, covering declination from $-$20${}^{\circ }$ to 80${}^{\circ }$. In total, the catalog contains 90 sources with an extended size smaller than $2^{\circ }$ and a significance of detection at $>5\sigma$. Based on our source association criteria, 32 new TeV sources are proposed in this study. Among the 90 sources, 43 sources are detected with ultra-high energy ($E>100$ TeV) emission at $>4\sigma$ significance level. We provide the position, extension, and spectral characteristics of all the sources in this catalog.

arXiv comment40 pages, 13 figures, 4 tables

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Cited by in corpus (86)

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• Measurement of Very-high-energy Diffuse Gamma-ray Emissions from the Galactic Plane with LHAASO-WCDA
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• Diffuse Ultra-High-Energy Gamma-Ray Emission From TeV Halos
• Particle acceleration and multi-messenger radiation from Ultra-Luminous X-ray Sources: A new class of Galactic PeVatrons
• Observation of the $\gamma$-ray Emission from W43 with LHAASO
• Prospects for a survey of the Galactic plane with the Cherenkov Telescope Array
• Precise measurements of the cosmic ray proton energy spectrum in the "knee'' region
• Mass and wind luminosity of young Galactic open clusters in Gaia DR2
• A proposed deep sea Neutrino Observatory in the Nanhai
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• Spectral study of very high energy gamma rays from SS 433 with HAWC
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• On the Contribution of Unresolved Pulsars to the Ultra-high-energy Galactic Diffuse Gamma-Ray Emission
• Evidence for particle acceleration approaching PeV energies in the W51 complex
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• Disclosing the catalog pulsars dominating the Galactic positron flux
• Mirages and Large TeV Halo-Pulsar Offsets from Cosmic Ray Propagation
• A New Perspective on the Diffuse Gamma-Ray Emission Excess
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• Multiple Emission Regions in Jets of Low Luminosity Active Galactic Nucleus in NGC 4278
• Camelidae on BOAT: observation of a second spectral component in GRB 221009A
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• Deriving pulsar pair-production multiplicities from pulsar wind nebulae using H.E.S.S. and LHAASO observations
• Prospects for gamma-ray emission from magnetar regions in CTAO observations
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• Detection of molecular clouds in the PeVatron candidate source LHAASO J0341$+$5258 by the Nobeyama 45-m radio telescope
• Ultra-high-energy $\gamma$-ray emission associated with the tail of a bow-shock pulsar wind nebula
• An extreme particle accelerator powered by pulsar PSR J1849-0001
• X-ray Binaries: a potential dominant contributor to the cosmic ray spectral knee structure
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• Microquasar remnants as hidden PeVatrons
• Quantitative constraint on the contribution of resolved gamma-ray sources to the sub-PeV Galactic diffuse gamma-ray flux measured by the Tibet ASγ experiment
• Revisiting the propagation of highly-energetic gamma rays in the Galaxy
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• Study of Ultra-High-Energy Gamma-Ray Source 1LHAASO J0056+6346u and Its Possible Origins
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• NuSTAR and XMM-Newton Observations of PSR J1930+1852 and Its Pulsar Wind Nebula
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• Mirage Sources and Large TeV Halo-Pulsar Offsets: Exploring the Parameter Space
• The influence of the Sun and Moon on the observation of very high energy gamma-ray sources using EAS arrays
• Axion-photon conversion in stochastic magnetic fields
• Investigating the mysterious nature of 1LHAASO J1740+0948u through deep XMM-Newton observations
• LHAASO Galactic Plane $\gamma$-rays Strongly Constrain Heavy Dark Matter
• Very high-energy gamma-ray and neutrino emission from hadronic interaction in compact binary millisecond pulsars
• Observation of the Crab Nebula with the Single-Mirror Small-Size Telescope stereoscopic system at low altitude
• Pulsar+escape: the recipe for LHAASO sources ?
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• Leading-order gravitational time delay of massive particles by a moving Schwarzschild lens
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• Diagnosing Interstellar Magnetic Turbulence with TeV Pulsar Halos
• Detectability of Supernova Remnants with the Southern Wide-field Gamma-ray Observatory
• Cosmic-Ray Mass Composition around the Knee via Principal Component Analysis
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• The GPSP Atlas: High-resolution Galactic Photon Survival Probability Atlas for Very-High- and Ultra-High-Energy Gamma-Ray Astronomy
• Different Jet Dissipation Mechanisms Underlying the Variability in Blazars
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• Young Massive Star Clusters as TeV Emitters: Constraints from H.E.S.S. and LHAASO
• Can a single supernova remnant account for the gamma-ray emission of G106.3+2.7?
• Investigation of the Microquasar SS 433 with VERITAS
• Interpreting Swift and NuSTAR Observations of the Low-Luminosity Active Galactic Nucleus NGC 4278 with Radiatively Inefficient Accretion Flows and Implications for Neutrino Emission
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• High Energy Emission from the Galactic Center
• The Cosmic-ray Knee as a Local Signature of Nearby PeVatrons
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• Towards Searching for Photons with Energies beyond the PeV Range from Galactic PeVatrons
• Unveiling extended gamma-ray emission around HESS J1813-178
• Neutrino Emission from Proton Photon Jet Interactions in Microquasars