5 citations · 8 across the 10 of their papers we have counts for
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HI envelope around the carbon star V420 Vul
Xu-Jia Ouyang, Yong Zhang, Chuan-Peng Zhang +1
We report the detection of an extended 21-cm parsec-scale \ion{H}{i} structure toward the Mira variable V420\,Vul using archival Galactic Arecibo L-band Feed Array survey data. The…
FAST search for circumstellar atomic hydrogen. IV. bubbles associated with planetary nebulae
Jun-Yang Liu, Yong Zhang, Xu-Jia Ouyang
Investigating the bubbles generated by the interaction between asymptotic giant branch stellar outflows and the interstellar medium (ISM) is pivotal for elucidating the mechanism b…
FAST search for circumstellar atomic hydrogen. II. Is BD+303639 an interacting planetary nebula?
Xu-Jia Ouyang, Yong Zhang, Albert Zijlstra +3
The young, compact, very high surface brightness but low excitation planetary nebula (PN) BD+303639 is one of the very few PNe that have been reported to exhibit the 21cm HI emissi…
FAST search for circumstellar atomic hydrogen--I: the young planetary nebula IC 4997
Xu-Jia Ouyang, Yong Zhang, Albert Zijlstra +3
Using the Five-hundred-meter Aperture Spherical radio Telescope (FAST) in Guizhou, China, we detect the 21cm neutral atomic hydrogen absorption in the young planetary nebula IC 499…