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astro-ph.HE2025
Absence of Radio Emission Reveals an Exceptionally Weak Explosion of the Putative Historical Supernova Pa 30
Yi-xuan Shao, Ping Zhou, Xiao Zhang +7
We present the first deep radio continuum observations of Pa 30, a nebula hosting a unique optical source driven by an ultrafast outflow with a velocity of 16,000 km s. The…
astro-ph.HE2025
GeV Gamma-Rays from Molecular Clouds Illuminated by Particles Diffusing from the Adjacent Supernova Remnant G335.2+0.1 Confined in an Expanding Bubble
Chen Huang, Xiao Zhang, Yang Chen +3
We report the detection of GeV gamma-ray emission likely associated with supernova remnant (SNR) G335.2+0.1 and the finding of a molecular cloud (-- in angular s…
astro-ph.HE2025
Expanding Molecular Shell and Possible γ-ray Source Associated with Supernova Remnant Kesteven 67
Yun-Zhi Shen, Yang Chen, Xiao Zhang +4
We investigate the molecular environment of the supernova remnant (SNR) Kesteven 67 (G18.8+0.3) using observations in CO, CO, HCO,and HCN lines and possible assoc…