3 papers
astro-ph.GA2025
Bullet shooting cloud-cloud collision in MIR bubble N65
En Chen, Xi Chen, Min Fang +3
We report that the formation of the twin-bubble system N65 and N65bis may be caused by the cloud-cloud collision (CCC) from the Bullet Nebula. The blue-shifted CO gas compon…
astro-ph.GA2024
Multiple collisions in N59 bubble: Sequential cloud-cloud collisions
En Chen, Xi Chen, Xuepeng Chen +2
We report that the gas components in the N59 bubble suffered from sequential multiple cloud-cloud collision (CCC) processes. The molecular gas in the N59 bubble can be decomposed i…
astro-ph.GA2024
FAST detection of OH emission in the carbon-rich planetary nebula NGC 7027
Xu-Jia Ouyang, Yong Zhang, Chuan-Peng Zhang +8
We present the first detection of the ground-state OH emission line at 1612 MHz toward the prototypical carbon-rich planetary nebula (PN) NGC 7027, utilizing the newly installed ul…