Emission Lines in the Spectrum of the 3He Star 3 Cen A

Details Emission Lines in the Spectrum of the 3He Star 3 Cen A Emission Lines in the Spectrum of the 3He Star 3 Cen A

2000-01-06

arxiv.org/abs/astro-ph/0001090v1

Astronomy and Astrophysics

Astrophysics

16 pages, 3 figures

Scientific paper

10.1086/312499

Emission in the 4d - 4f transitions of MnII (multiplet 13, 6122-6132 Ang), in the 4f - 6g transitions of PII, and in 6149.5 Ang of HgII has been detected in the spectrum of the helium weak star 3 Centauri A (B5 III-IVp). Weaker emission from the same MnII multiplet is also seen in the hot, mild HgMn star 46 Aquila (B9 III).It is suggested that the emission is of photospheric origin and may be evidence for the stratification of manganese, phosphorus and mercury in the photosphere of 3 CenA, and of manganese in 46Aql.

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