activity
20062025
most citedPhase-reference VLBI Observations of the Compact Steep-Spectrum Source 3C 138

1 citations · 1 across the 5 of their papers we have counts for

collaborators

6 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…

astro-ph.GA2024

Excited-State OH Masers in the Water Fountain Source IRAS 18460-0151

Xu-Jia Ouyang, Yong Zhang, Juan Li +3

Water fountain objects are generally defined as "evolved stars with low to intermediate initial mass accompanied by high-velocity molecular jets detectable in the 22.235 GHz HO…

astro-ph.GA2024

Distribution Properties of the 6.7 GHz Methanol Masers and Their Surrounding Gases in the Milky Way

Tian Yang, Xi Chen, Yan-Kun Zhang +4

An updated catalog consisting of 1092 6.7-GHz methanol maser sources was reported in this work. Additionally, the NH3 (1, 1), NH3 (2, 2), and NH3 (3, 3) transitions were observed t…

astro-ph2006★ 1 cited

Phase-reference VLBI Observations of the Compact Steep-Spectrum Source 3C 138

Zhi-Qiang Shen, L. -L. Shang, D. -R. jiang +2

We investigate a phase-reference VLBI observation that was conducted at 15.4 GHz by fast switching VLBA antennas between the compact steep-spectrum radio source 3C 138 and the quas…