SIMBAD references

2024MNRAS.531.4823P - Mon. Not. R. Astron. Soc., 531, 4823-4835 (2024/July-2)

Chemical compositions of semiregular variable red giants.

POZHATH R. and LAMBERT D.L.

Abstract (from CDS):

A sample of warm, low-level semiregular variables chosen from the General Catalogue of Variable Stars is studied for their chemical compositions by analysing high-resolution optical spectra. The abundance ratios from Na/Fe to Eu/Fe displayed by these and previously analysed semiregular variables are quite similar to ratios displayed by normal red giants across the Galactic thin and thick discs and halo populations in the solar neighbourhood, suggesting from this perspective that the variables may be among the more photometrically active red giants.

Abstract Copyright: © 2024 The Author(s). Published by Oxford University Press on behalf of Royal Astronomical Society.

Journal keyword(s): stars: abundances - stars: fundamental parameters - stars: late-type - stars: variables

Simbad objects: 48

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