Determination of the Abundance of Mercury from the Hg ii Line at 5677.10 Å in Late B-type Stars. XII. HD 7374 (87 Psc)

Abstract The weak line of Hg ii located at 5677.10 Å is not detected in a coadded ELODIE spectrum of the HgMn star HD 7374 which may be explained by the decrease of the signal-to-noise ratio in the red part of the spectrum. The synthesis of various spectral intervals yields several new measurements of the abundances of helium, carbon, oxygen, magnesium, aluminum, silicon, titanium, chromium, manganese, iron, nickel, gallium and yttrium. Most of these new measurements agree well with previous measurements.

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Publication Details

Journal
Research Notes of the AAS
Published
2024-12-24
DOI
https://doi.org/10.3847/2515-5172/ada291
Primary Topic
Stellar, planetary, and galactic studies
Type
article
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article

Determination of the Abundance of Mercury from the Hg ii Line at 5677.10 Å in Late B-type Stars. XII. HD 7374 (87 Psc)

Richard Monier
Research Notes of the AAS
Stellar, planetary, and galactic studies
article

Determination of the Abundance of Mercury from the Hg ii Line at 5677.10 Å in Late B-type Stars. XII. HD 7374 (87 Psc)

Richard Monier
article en

Abstract

Abstract The weak line of Hg ii located at 5677.10 Å is not detected in a coadded ELODIE spectrum of the HgMn star HD 7374 which may be explained by the decrease of the signal-to-noise ratio in the red part of the spectrum. The synthesis of various spectral intervals yields several new measurements of the abundances of helium, carbon, oxygen, magnesium, aluminum, silicon, titanium, chromium, manganese, iron, nickel, gallium and yttrium. Most of these new measurements agree well with previous measurements.

Research Notes of the AASVol. 8(12)
Life below water
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Stellar, planetary, and galactic studies
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Determination of the Abundance of Mercury from the Hg ii Line at 5677.10 Å in Late B-type Stars. XII. HD 7374 (87 Psc) — Richard Monier · Research Notes of the AAS (2024) | TGRS Research Map | TGRS