Coaxial rings and H2 knots in Hubble 12

11th Pacific Rim Conference on Stellar Astrophysics: Physics and Chemistry of the Late Stages of Stellar Evolution

物理学;天文学

Hsia, Chih-Hao^1,2 ; Kwok, Sun^1 ; Chau, Wayne^1,2 ; Zhang, Yong^1,2

Laboratory for Space Research, Faculty of Science, University of Hong Kong, Hong Kong, Hong Kong^1

Department of Physics, University of Hong Kong, Hong Kong, Hong Kong^2

关键词: Co-axial;    Narrowband imaging;    Near Infrared;    Planetary nebula;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/728/7/072009/pdf
DOI  :  10.1088/1742-6596/728/7/072009

学科分类：天文学(综合)

来源: IOP

【 摘 要 】

Hubble 12 (Hb 12) is a young planetary nebula (PN) exhibiting nested shells. We present new near-infrared narrow-band imaging observations of Hb 12 using the Canada-France- Hawaii Telescope (CFHT). A number of co-axial rings aligned with the bipolar lobes and two pairs of separate H2knots with different orientations are detected.