Reference : The structure and spectral characteristics of the low-excitation planetary nebula HD 316...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
http://hdl.handle.net/2268/20720
The structure and spectral characteristics of the low-excitation planetary nebula HD 316248
English
Hutsemekers, Damien mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS) >]
Surdej, Jean mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS) >]
1-Dec-1985
Astronomy and Astrophysics
EDP Sciences
153
245-248
Yes (verified by ORBi)
International
0004-6361
1432-0746
Les Ulis
France
[en] PLANETARY NEBULAE ; STELLAR EVOLUTION ; STELLAR SPECTROPHOTOMETRY ; VISIBLE SPECTRUM ; EMISSION SPECTRA ; H II REGIONS ; LINE SPECTRA
[en] Analysis of two medium dispersion (39 Å/mm) optical spectra of the compact planetary nebula HD 316248 is reported here. When compared with observations collected in 1968 - 70, the authors' data obtained in 1978 reveal a net increase of the [O III] lambdalambda4959, 5007 line intensities. Furthermore, despite showing unusual emission lines due to [Ti III], the low-excitation spectrum of HD 316248 presents striking similarities with that of a typical H II region. Direct plates taken through broad-band and interference filters at the prime focus of the ESO 3.6 m telescope clearly show that HD 316248 is an elongated (d â 4arcsec.4) and diffuse object as seen in the light of Halpha.
http://hdl.handle.net/2268/20720
http://adsabs.harvard.edu/abs/1985A%26A...153..245H
The authors thank EDP Sciences for their deposit authorization

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