MgAl burning chain in M 54: The globular cluster-like properties of a nuclear star cluster

Astronomy and Astrophysics 2026 Open access

Read full text
Authors: Deimer Antonio Alvarez Garay, A. Mucciarelli, P. Ventura, M. Bellazzini, S. Covella
DOI: 10.1051/0004-6361/202558783
Cited by: 0
References: 67

Abstract

In this study, we present the chemical abundances of Fe, Mg, Al, Si, and K for a sample of 233 likely member stars of M 54. All the stars were observed with the FLAMES high-resolution multi-object spectrograph mounted at the VLT. Our analysis confirmed the presence of a large metallicity range in M 54, with the majority of the stars having −1.8

Fields of Study & Subjects

Stellar planetary and galactic studies Galaxies: Formation Evolution Phenomena Astronomy and Astrophysical Research

Publication details

Journal / source
Astronomy and Astrophysics
Volume
707
Pages
A280–A280
Publication date
12 February 2026
Language
EN