We investigate the origin of unidentified, extended TeV source 1LHAASO J0500+4454, considering three possible origins: cosmic rays interacting with a molecular cloud (MC), particles accelerated in a currently undetected supernova remnant (SNR), and an energetic outflow powered by a pulsar.
Upper limits on the CO and X-ray emission from the $\gamma$-ray emitting region disfavor the MC and SNR...
TeV gamma-ray binaries (TGBs) are rare, high-mass systems capable of accelerating particles to energies >10 TeV. Among them, HESS J0632+057, a candidate pulsar–Be star binary, stands out as a promising source, exhibiting phase-dependent X-ray and TeV flares. These phase-dependent flares can provide new insights into pulsar–disk interactions.
We present results from a new multi-wavelength...
The HAWC observatory detected ฆร-ray emission from the microquasar V4641 Sgr ($\gt$ 200 TeV) and revealed a $\sim$ 100 pc bubble, indicating PeV--scale particle acceleration; LHAASO subsequently extended the spectrum to ~0.8 PeV. In IR--mm data, we identify a millimeter clump $\sim$ 20$'$ from the microquasar, report its position and basic properties, and assess any spatial/kinematic...
The recent LHAASO survey has revealed a new population of >25 TeV sources in the Northern Hemisphere, including several PeVatron candidates without clear counterparts at lower energies. These “TeV-only” sources present a critical test for models of Galactic particle acceleration. VERITAS, with its superior angular resolution and sensitivity between 100 GeV and 25 TeV, is well positioned to...
