Searching for TeV emission from LHAASO J0341+5258 with VERITAS and HAWC

Abstract

Galactic PeVatrons are astrophysical sources accelerating particles up to a few PeV ($\sim$10${}^{15}$ eV) energies. The primary signature of 100 TeV $\gamma$ rays may come from PeV protons or multi-hundred TeV (not PeV) electrons. The search for PeVatrons has been one of the key science topics for VERITAS and HAWC. In 2021, LHAASO detected 14 steady $\gamma$-ray sources with photon energies above 100 TeV, up to 1.4 PeV. This provides a clear list of PeVatron candidates for further study with VERITAS and HAWC. Most of these sources contain possible source associations, such as supernova remnants, pulsar wind nebulae, and stellar clusters. However, two sources: LHAASO J2108+5157 and LHAASO J0341+5258, do not have any such counterparts. Therefore, multiwavelength observations are required to identify the objects responsible for the UHE $\gamma$ rays, to understand the source morphology and association, and to shed light on the emission processes. Here, we will present the status of VERITAS/HAWC observations and results for the LHAASO PeVatron candidate J0341+5258, and also discuss the VERITAS PeVatron search in general.

arXiv commentProceedings for the 38th International Cosmic Ray Conference (ICRC2023) in Nagoya Japan, Jul 26 - Aug 3, 2023

References in corpus (18)

• Fermi Large Area Telescope Fourth Source Catalog
• Observation of the Crab Nebula with the HAWC Gamma-Ray Observatory
• The 2HWC HAWC Observatory Gamma Ray Catalog
• The Crab Nebula and Pulsar between 500 GeV and 80 TeV: Observations with the HEGRA stereoscopic air Cherenkov telescopes
• Multiple Galactic Sources with Emission Above 56 TeV Detected by HAWC
• The Milky Way Imaging Scroll Painting (MWISP): Project Details and Initial Results from the Galactic Longitude of 25.8deg to 49.7deg
• First Detection of Photons with Energy Beyond 100 TeV from an Astrophysical Source
• Computation of the O(p^6) order low-energy constants: an update
• Gamma rays from molecular clouds
• Extended Very-High-Energy Gamma-Ray Emission Surrounding PSR J0622 + 3749 Observed by LHAASO-KM2A
• TeV Halos are Everywhere: Prospects for New Discoveries
• Gamma-ray observations of Tycho's SNR with VERITAS and Fermi
• Detection of Extended VHE Gamma Ray Emission from G106.3+2.7 with VERITAS
• Spatially Resolving the Very High Energy emission from MGRO J2019+37 with VERITAS
• The gamma-ray millisecond pulsar deathline, revisited - New velocity and distance measurements
• Discovery of the Ultra-high energy gamma-ray source LHAASO J2108+5157
• Discovery of a new $\gamma$-ray source LHAASO J0341+5258 with emission up to 200TeV
• Eventdisplay: An Analysis and Reconstruction Package for Ground-based Gamma-ray Astronomy

Cited by in corpus (1)

• Detection of molecular clouds in the PeVatron candidate source LHAASO J0341$+$5258 by the Nobeyama 45-m radio telescope