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dc.contributor.authorRubele, S.
dc.contributor.authorGirardi, L.
dc.contributor.authorKerber, L.
dc.contributor.authorCioni, M-R.L.
dc.contributor.authorPiatti, A.E.
dc.contributor.authorZaggia, S.
dc.contributor.authorBekki, K.
dc.contributor.authorBressan, A.
dc.contributor.authorClementini, G.
dc.contributor.authorde Grijs, R.
dc.contributor.authorEmerson, J.P.
dc.contributor.authorGroenewegen, M.A.T.
dc.contributor.authorIvanov, Valentin D.
dc.contributor.authorMarconi, M.
dc.contributor.authorMarigo, P.
dc.contributor.authorMoretti, M.I.
dc.contributor.authorRipepi, V.
dc.contributor.authorSubramanian, S.
dc.contributor.authorTatton, B.L.
dc.contributor.authorvan Loon, J. Th
dc.date.accessioned2015-06-01T13:06:02Z
dc.date.available2015-06-01T13:06:02Z
dc.date.issued2015-05-01
dc.identifier.citationRubele , S , Girardi , L , Kerber , L , Cioni , M-RL , Piatti , A E , Zaggia , S , Bekki , K , Bressan , A , Clementini , G , de Grijs , R , Emerson , J P , Groenewegen , M A T , Ivanov , V D , Marconi , M , Marigo , P , Moretti , M I , Ripepi , V , Subramanian , S , Tatton , B L & van Loon , J T 2015 , ' The VMC survey - XIV : First results on the look-back time star formation rate tomography of the Small Magellanic Cloud ' , Monthly Notices of the Royal Astronomical Society , vol. 449 , no. 1 , pp. 639-661 . https://doi.org/10.1093/mnras/stv141
dc.identifier.issn0035-8711
dc.identifier.otherPURE: 8608807
dc.identifier.otherPURE UUID: 73c731b9-9dba-42e2-92e6-53848f3af49e
dc.identifier.otherBibtex: urn:3248e24591be1d65f980c741f532d07b
dc.identifier.otherScopus: 84929807574
dc.identifier.urihttp://hdl.handle.net/2299/15962
dc.descriptionDate of Acceptance: 20/01/2015
dc.description.abstractWe analyse deep images from the VISTA survey of the Magellanic Clouds in the YJKs filters, covering 14 deg2 (10 tiles), split into 120 subregions, and comprising the main body and Wing of the Small Magellanic Cloud (SMC). We apply a colour-magnitude diagram reconstruction method that returns their best-fitting star formation rate SFR(t), age-metallicity relation (AMR), distance and mean reddening, together with 68 per cent confidence intervals. The distance data can be approximated by a plane tilted in the East-West direction with a mean inclination of 39°, although deviations of up to ±3 kpc suggest a distorted and warped disc. After assigning to every observed star a probability of belonging to a given age-metallicity interval, we build high-resolution population maps. These dramatically reveal the flocculent nature of the young star-forming regions and the nearly smooth features traced by older stellar generations. They document the formation of the SMC Wing at ages <0.2 Gyr and the peak of star formation in the SMC Bar at ~40 Myr. We clearly detect periods of enhanced star formation at 1.5 and 5 Gyr. The former is possibly related to a new feature found in the AMR, which suggests ingestion of metal-poor gas at ages slightly larger than 1 Gyr. The latter constitutes a major period of stellar mass formation. We confirm that the SFR(t) was moderately low at even older ages.en
dc.format.extent23
dc.language.isoeng
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society
dc.subjectHertzsprung-Russell and colour-magnitude diagrams, Magellanic Clouds
dc.titleThe VMC survey - XIV : First results on the look-back time star formation rate tomography of the Small Magellanic Clouden
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.contributor.institutionScience & Technology Research Institute
dc.contributor.institutionCentre for Astrophysics Research
dc.description.statusPeer reviewed
rioxxterms.versionAM
rioxxterms.versionofrecordhttps://doi.org/10.1093/mnras/stv141
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue


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