%0 Journal Article
%T A new method for measuring metallicities of young super star clusters
%+ Institute for Astronomy [Honolulu]
%+ Liverpool John Moores University (LJMU)
%+ Institute of Astronomy [Cambridge]
%+ University College of London [London] (UCL)
%+ University of Hawaii
%+ Laboratoire Univers et Particules de Montpellier (LUPM)
%+ Laboratoire Univers et Particules de Montpellier (LUPM)
%+ Royal Observatory Edinburgh (ROE)
%+ Laboratoire de physique des gaz et des plasmas (LPGP)
%+ California Institute of Technology (CALTECH)
%A Gazak, J. Zachary
%A Davies, Ben
%A Bastian, Nate
%A Kudritzki, Rolf
%A Bergemann, Maria
%A Plez, Bertrand
%A Evans, Chris
%A Patrick, Lee
%A Bresolin, Fabio
%A Schinnerer, Eva
%Z J.Z.G. and R.P.K. acknowledge support by the National Science Foundation under grant AST-1108906 and the hospitality of the Munich University Observatory where part of this work was carried out. B.D. is supported by a fellowship from the Royal Astronomical Society. B.P. is supported in part by the CNRS Programme National de Physique Stellaire.
%< avec comité de lecture
%@ 0004-637X
%J The Astrophysical Journal
%I American Astronomical Society
%V 787
%N 2
%P 142
%8 2014-06-01
%D 2014
%Z 1404.5354
%R 10.1088/0004-637X/787/2/142
%Z Physics [physics]/Astrophysics [astro-ph]Journal articles
%X We demonstrate how the metallicities of young super star clusters (SSC) can be measured using novel spectroscopic techniques in the J-band. The near-infrared flux of SSCs older than ∼6 Myr is dominated by tens to hundreds of red supergiant stars. Our technique is designed to harness the integrated light of that population and produces accurate metallicities for new observations in galaxies above (M83) and below (NGC 6946) solar metallicity. In M83 we find [Z] = +0.28 ± 0.14 dex using a moderate resolution (R ∼ 3500) J-band spectrum and in NGC 6496 we report [Z] = –0.32 ± 0.20 dex from a low resolution spectrum of R  ∼ 1800. Recently commissioned low resolution multiplexed spectrographs on the Very Large Telescope (KMOS) and Keck (MOSFIRE) will allow accurate measurements of SSC metallicities across the disks of star-forming galaxies up to distances of 70 Mpc with single night observation campaigns using the method presented in this paper.
%G English
%2 https://hal.science/hal-01972090v1/document
%2 https://hal.science/hal-01972090v1/file/A%2520New%2520Method%2520for%2520Measuring%2520Metallicities%2520of%2520Young%2520Super%2520Star%2520Clusters.pdf
%L hal-01972090
%U https://hal.science/hal-01972090
%~ IN2P3
%~ CNRS
%~ UNIV-MONTP2
%~ UNIV-PSUD
%~ OPENAIRE
%~ LUPM
%~ UNIV-PARIS-SACLAY
%~ UNIV-PSUD-SACLAY
%~ MIPS
%~ UNIV-MONTPELLIER
%~ LUPM_AS
%~ UMR8578
%~ GS-PHYSIQUE
%~ UM1-UM2
%~ UM-2015-2021
%~ UM-EPE