| Issue |
A&A
Volume 377, Number 3, October III 2001
|
|
|---|---|---|
| Page(s) | L27 - L30 | |
| Section | Letters | |
| DOI | https://doi.org/10.1051/0004-6361:20011211 | |
| Published online | 15 October 2001 | |
The interpretation of Mn II emission from late-type B stars
Department of Physics and Astronomy, The University of Western Ontario, London, Ontario, Canada N6A 3K7
Received:
12
March
2001
Accepted:
29
August
2001
The photospheric Mnii emission lines Wahlgren & Hubrig ([CITE]) detect
in the spectra of several late-type B and HgMn stars and
attribute to fluorescent excitation are more naturally explained by
interlocked non-LTE effects acting in a photosphere in which the manganese abundance is
stratified with depth. The case is particularly strong for HD 186122 (46 Aql) and
HD 179761 both of which require the manganese overabundance to be concentrated
to column masses of 
.
Key words: line: formation / radiative transfer / stars: chemically peculiar / stars: emission-line, Be
© ESO, 2001
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