Omega Centauri: weak MgH band in red giants directly traces the helium content
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DOI: 10.1093/mnras/staa1081
Abstract: High spectral resolution and high signal-to-noise ratio optical spectra of red giants in the globular cluster Omega Centauri are analysed for stellar parameters and chemical abundances of 15 elements including helium by either line equivalent… read more here.
Keywords: mgh; centauri weak; red giants; omega centauri ... See more keywords
Studying Binary Systems in Omega Centauri with MUSE: II. Observational constraints on the orbital period distribution
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DOI: 10.1093/mnras/staf465
Abstract: Omega Centauri (ω Cen) is one of the most complex star clusters in the Milky Way, and likely the stripped nucleus of an accreted dwarf galaxy. Being the subject of debate between it hosting an… read more here.
Keywords: period distribution; mass; omega centauri; binary systems ... See more keywords