More on the reflection nebula surrounding HD 87643 and the non-uniform atmosphere of the central star

Details More on the reflection nebula surrounding HD 87643 and the non-uniform atmosphere of the central star More on the reflection nebula surrounding HD 87643 and the non-uniform atmosphere of the central star

Jan 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983a%26a...117..359s&link_type=abstract

Astronomy and Astrophysics, vol. 117, no. 2, Jan. 1983, p. 359-361.

Astronomy and Astrophysics

Astrophysics

8

Nebulae, Stellar Atmospheres, Emission Spectra, Line Spectra

Scientific paper

Different equivalent widths and line displacements of Hβ and Fe II are observed in spectra of two condensations located within the reflection nebula surrounding HD 87643: they indicate important relative motions (Δv ≡ 150 km s-1) 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.

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