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2024RNAAS...8..193M - Research Notes of the AAS, 8, 193 (2024/July-0)

Determination of Surface Abundances for HD 129174 (π1 Boo).

MONIER R.

Abstract (from CDS):

The synthesis of the Hg II line at 3983.93 Å, using published hyperfine structure and nuclear shifts, confirms a large overabundance of mercury in HD 129174, about +6.18 dex, which is actually slightly larger than the excess derived in earlier studies. The synthesis of 17 other lines close to the Hg II line and in the spectral range 4400-4500 Å yields abundances for 9 elements. Helium and iron are found to be deficient by -1.12 and -0.097 dex. Magnesium, scandium, titanium, chromium are moderately enhanced by respectively +0.30 dex (Mg) and +1.0 dex (Sc, Ti and Cr). Yttrium and zirconium are very overabundant by +4.00, +2.48 dex respectively.

Abstract Copyright: © 2024. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Chemically peculiar stars - Mercury-manganese stars

Simbad objects: 3

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