SIMBAD references

2006ApJ...645L..33F - Astrophys. J., 645, L33-L36 (2006/July-1)

On the iron content of NGC 1978 in the LMC: a metal-rich, chemically homogeneous cluster.

FERRARO F.R., MUCCIARELLI A., CARRETTA E. and ORIGLIA L.

Abstract (from CDS):

We present a detailed abundance analysis of giant stars in NGC 1978, a massive, intermediate-age stellar cluster in the Large Magellanic Cloud, characterized by a high ellipticity and suspected to have a metallicity spread. We analyzed 11 giants, all cluster members, by using high-resolution spectra acquired with UVES/FLAMES at the ESO Very Large Telescope. We find an iron content of [Fe/H] = -0.38 dex with very low σ[Fe/H]=0.07 dex dispersion, a mean heliocentric radial velocity vr=293.1±0.9 km/s, and a velocity dispersion σvr=3.1 km/s, thus excluding the presence of a significant metallicity, as well as velocity, spread within the cluster.

Abstract Copyright:

Journal keyword(s): globular clusters: individual (NGC 1978) - Galaxies: Magellanic Clouds - Stars: Abundances - Techniques: Spectroscopic

Nomenclature: Table 1: Cl* NGC 1978 FMC NN N=11.

CDS comments: In introd. : NGC 1989 is a misprint for NGC 1898

Simbad objects: 26

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2021.06.20-16:17:08

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