SPECTROSCOPY OF THE PROTOPLANETARY NEBULA AFGL-618

Authors
BAESSGEN M HOPFENSITZ W ZWEIGLE J
Citation
M. Baessgen et al., SPECTROSCOPY OF THE PROTOPLANETARY NEBULA AFGL-618, Astronomy and astrophysics, 325(1), 1997, pp. 277-281
Citations number
10
Categorie Soggetti
Astronomy & Astrophysics
Journal title
Astronomy and astrophysics → ACNP
ISSN journal
00046361
Volume
325
Issue
1
Year of publication
1997
Pages
277 - 281
Database
ISI
SICI code
0004-6361(1997)325:1<277:SOTPNA>2.0.ZU;2-O
Abstract
We report on new optical spectroscopic observations of the protoplanet ary nebula AFGL 618. Compared to older observations we find a change i n some emission line ratios indicating dynamical evolutionary processe s during the last few years. Possible reasons for this behaviour are d iscussed.