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dc.contributor.authorKotulla, R.
dc.contributor.authorFritze, U.
dc.contributor.authorAnders, P.
dc.date.accessioned2009-12-04T10:24:46Z
dc.date.available2009-12-04T10:24:46Z
dc.date.issued2009
dc.identifier.citationKotulla , R , Fritze , U & Anders , P 2009 , ' Detecting metal-rich intermediate-age globular clusters in NGC4570 using K-band photometry ' , Astrophysics and Space Science , vol. 324 , no. 2-4 , pp. 347-350 . https://doi.org/10.1007/s10509-009-0093-8
dc.identifier.issn0004-640X
dc.identifier.otherPURE: 156075
dc.identifier.otherPURE UUID: 457eaa85-921b-4439-9cb3-84f6f981f99c
dc.identifier.otherdspace: 2299/4058
dc.identifier.otherScopus: 84895905239
dc.identifier.urihttp://hdl.handle.net/2299/4058
dc.description“The original publication is available at www.springerlink.com”. Copyright Springer. DOI: 10.1007/s10509-009-0093-8
dc.description.abstractGlobular cluster systems (GCSs) of most early-type galaxies feature two peaks in their optical colour distributions. Blue-peak globular clusters (GCs) are believed to be old and metal-poor, whereas the ages, metallicities, and the origin of the red-peak GCs are still being debated. We obtained deep K-band photometry and combined it with Hubble Space Telescope observations in g and z to yield a full spectral energy distribution from the optical to the near-infrared. This now allows us to break the age–metallicity degeneracy. We used our evolutionary synthesis models galev for star clusters to compute a large grid of models with different metallicities and a wide range of ages. Comparing these models to our observations revealed a large population of intermediate-age (1–3 Gyr) and metal-rich (≈solar-metallicity) GCs, that will give us further insights into the formation history of this galaxy.en
dc.language.isoeng
dc.relation.ispartofAstrophysics and Space Science
dc.titleDetecting metal-rich intermediate-age globular clusters in NGC4570 using K-band photometryen
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.description.statusPeer reviewed
rioxxterms.versionofrecordhttps://doi.org/10.1007/s10509-009-0093-8
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue


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