Article (Scientific journals)
More on the reflection nebula surrounding HD 87643 and the non-uniform atmosphere of the central star
Surdej, Jean; Swings, Jean-Pierre
1983In Astronomy and Astrophysics, 117, p. 359-361
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Keywords :
STELLAR ATMOSPHERES; EMISSION SPECTRA; LINE SPECTRA; NEBULAE
Abstract :
[en] Different equivalent widths and line displacements of Hbeta and Fe II are observed in spectra of two condensations located within the reflection nebula surrounding HD 87643: they indicate important relative motions (Deltav â ¡ 150 km s[SUP]-1[/SUP]) between various parts of the nebulosity and demonstrate that the stellar atmosphere in which the lines are formed is not isotropic and/or not homogeneous. The spectrum of another reflection nebula situated in the vicinity of HD 87643 is also briefly described.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Surdej, Jean  ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS)
Swings, Jean-Pierre ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Département d'astrophys., géophysique et océanographie (AGO)
Language :
English
Title :
More on the reflection nebula surrounding HD 87643 and the non-uniform atmosphere of the central star
Publication date :
1983
Journal title :
Astronomy and Astrophysics
ISSN :
0004-6361
eISSN :
1432-0746
Publisher :
EDP Sciences, Les Ulis, France
Volume :
117
Pages :
359-361
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 02 August 2009

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