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Multiple Point-Symmetric Ejections in IC 4634 | Martin A. Guerrero
; Luis F. Miranda
; & You-Hua Chu
; | Date: |
14 Oct 2003 | Subject: | astro-ph | Affiliation: | 1,2), Luis F. Miranda , & You-Hua Chu ( Instituto de Astrofisica de Andalucia, CSIC, Spain, University of Illinois | Abstract: | We present a spatio-kinematical study of the planetary nebula (PN) IC 4634 which has experienced several episodes of point-symmetric ejections oriented at different directions. The nebula displays two S-shaped low-ionization arcs that are probably related to two relatively recent point-symmetric ejections, the outer S-shaped arc representing a beautiful example of a bow-shock resolved in a PN. We report here the discovery of an arc-like string of knots at larger distances from IC 4634 central star that represents a much earlier point-symmetric ejection. | Source: | arXiv, astro-ph/0310370 | Services: | Forum | Review | PDF | Favorites |
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