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ORBITS OF NEARBY PLANETARY NEBULAE AND THEIR INTERACTION WITH THE INTERSTELLAR MEDIUM
Wu, Zhen-Yu1; Ma, Jun1; Zhou, Xu1; Du, Cui-Hua2
2011-03-01
Source PublicationASTRONOMICAL JOURNAL
Volume141Issue:3
AbstractWe present and analyze the orbits of eight nearby planetary nebulae (PNs) using two different Galactic models. The errors of the derived orbital parameters are determined with a Monte Carlo method. Based on the derived orbital parameters, we find that Sh 2-216, DeHt 5, NGC 7293, A21, and Ton 320 belong to the thin-disk population, and PG 1034 + 001 and A31 belong to the thick-disk population. PuWe 1 probably belongs to the thick-disk population, but its population classification is very uncertain due to the large errors of its derived orbital parameters. The PN-interstellar medium (ISM) interactions are observed for the eight PNs in our sample. The position angles of the proper motions of the PNs are consistent with the directions of the PN-ISM interaction regions. The kinematic ages of PNs are much smaller than the time for them to cross the Galactic plane. Using the models of Borkowski et al. and Soker et al., the PN-ISM interaction can be used to derive the local density of ISM in the vicinity of evolved PNs. According to the three-dimensional hydrodynamic simulations of Wareing et al. (WZO), Sh 2-216, A21, and Ton 320 are in the WZO 3 stage, PG 1034 + 001 and NGC 7293 are in the WZO 1 stage, and PuWe 1 is in the WZO 2 stage.
KeywordPlanetary Nebulae: General White Dwarfs Planetary Nebulae: Individual (Sh 2-216 Puwe 1 A21 Ton 320 A31 Pg 1034+001 Ngc 7293 Deht 5)
DOI10.1088/0004-6256/141/3/104
Indexed BySCI
Language英语
WOS IDWOS:000287231000035
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/8007
Collection光学天文研究部
Affiliation1.Chinese Acad Sci, Natl Astron Observ, Key Lab Opt Astron, Beijing 100012, Peoples R China
2.Chinese Acad Sci, Coll Phys Sci, Grad Univ, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Wu, Zhen-Yu,Ma, Jun,Zhou, Xu,et al. ORBITS OF NEARBY PLANETARY NEBULAE AND THEIR INTERACTION WITH THE INTERSTELLAR MEDIUM[J]. ASTRONOMICAL JOURNAL,2011,141(3).
APA Wu, Zhen-Yu,Ma, Jun,Zhou, Xu,&Du, Cui-Hua.(2011).ORBITS OF NEARBY PLANETARY NEBULAE AND THEIR INTERACTION WITH THE INTERSTELLAR MEDIUM.ASTRONOMICAL JOURNAL,141(3).
MLA Wu, Zhen-Yu,et al."ORBITS OF NEARBY PLANETARY NEBULAE AND THEIR INTERACTION WITH THE INTERSTELLAR MEDIUM".ASTRONOMICAL JOURNAL 141.3(2011).
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