Red Supergiants as Cosmic Abundance Probes: massive star clusters in M83, and the mass-metallicity relation of nearby galaxies

Abstract

We present an abundance analysis of seven super-star clusters in the disk of M83. The near-infrared spectra of these clusters are dominated by Red Supergiants, and the spectral similarity in the J-band of such stars at uniform metallicity means that the integrated light from the clusters may be analysed using the same tools as those applied to single stars. Using data from VLT/KMOS we estimate metallicities for each cluster in the sample. We find that the abundance gradient in the inner regions of M83 is flat, with a central metallicity of [Z] = 0.21$\pm$0.11 relative to a Solar value of $Z_{\odot }$=0.014, which is in excellent agreement with the results from an analysis of luminous hot stars in the same regions. Compiling this latest study with our other recent work, we construct a mass-metallicity relation for nearby galaxies based entirely on the analysis of RSGs. We find excellent agreement with the other stellar-based technique, that of blue supergiants, as well as with temperature-sensitive (`auroral' or `direct') \hii-region studies. Of all the HII-region strong-line calibrations, those which are empirically calibrated to direct-method studies (N2 and O3N2) provide the most consistent results.

10 pages, 6 figures. Accepted for publication in ApJ

References in corpus (19)

• The EAGLE project: Simulating the evolution and assembly of galaxies and their environments
• A grid of MARCS model atmospheres for late-type stars I. Methods and general properties
• The Universal Relation of Galactic Chemical Evolution: The Origin of the Mass-Metallicity Relation
• Extragalactic chemical abundances: do HII regions and young stars tell the same story? The case of the spiral galaxy NGC 300
• On the fine structure of the Cepheid metallicity gradient in the Galactic thin disk
• Quantitative Spectroscopy of 24 A supergiants in the Sculptor galaxy NGC 300: Flux weighted gravity luminosity relationship, metallicity and metallicity gradient
• VLT spectroscopy of blue supergiants in IC 1613
• Young stars and ionized nebulae in M83: comparing chemical abundances at high metallicity
• The Araucaria Project: the Local Group Galaxy WLM--Distance and metallicity from quantitative spectroscopy of blue Supergiants
• Red Supergiant Stars as Cosmic Abundance Probes: KMOS Observations in NGC 6822
• Red Supergiant Stars as Cosmic Abundance Probes. III. NLTE effects in J-band Magnesium lines
• The chemical evolution of local star forming galaxies: Radial profiles of ISM metallicity, gas mass, and stellar mass and constraints on galactic accretion and winds
• A spectroscopic study of blue supergiant stars in the Sculptor galaxy NGC 55: chemical evolution and distance
• Red Supergiants as Cosmic Abundance Probes: The Magellanic Clouds
• Red Supergiants as Cosmic Abundance Probes: The Sculptor Galaxy NGC 300
• Stellar Metallicity of the Extended Disk and Distance of the Spiral Galaxy NGC 3621
• The effects of spatially distributed ionisation sources on the temperature structure of HII region
• A New Method for Measuring Metallicities of Young Super Star Clusters
• Quantitative Spectroscopic J-band Study of Red Supergiants in Perseus OB-1

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• Evolved Massive Stars at Low-metallicity V. Mass-Loss Rate of Red Supergiant Stars in the Small Magellanic Cloud
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• Evolved Massive Stars at Low-metallicity IV. Using 1.6 $\mu$m "H-bump" to identify red supergiant stars: a case study of NGC 6822
• Trading oxygen for iron I: the [O/Fe] -- specific star formation rate relation of galaxies
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• Metallicity Estimation of Core-Collapse Supernova HII Regions in Galaxies within 30 Mpc
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