Journal
ASTROPHYSICAL JOURNAL
Volume 530, Issue 2, Pages L89-L92Publisher
UNIV CHICAGO PRESS
DOI: 10.1086/312499
Keywords
diffusion; line : identification; stars : chemically peculiar; stars : emission-line, Be; stars : individual (3 Centauri A, 46 Aquilae)
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Emission in the 4d -> 4f transitions of Mn II (multiplet 13, lambda lambda 6122-6132), in the 4f -> 6g transitions of P II, and in lambda 6149.5 of Hg II has been detected in the spectrum of the helium-weak star 3 Centauri A (B5 III-IVp). Weaker emission from the same Mn 11 multiplet is also seen in the hot, mild HgMn star 46 Aquilae (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 Cen A and of manganese in 46 Aql.
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