VMC survey XLIII. LMC star formation history Virtual Observatory Resource

Authors
  1. Mazzi A.
  2. Girardi L.
  3. Zaggia S.
  4. Pastorelli G.
  5. Rubele S.
  6. Bressan A.,Cioni M.-R. L.
  7. Clementini G.
  8. Cusano F.
  9. Rocha J.P.
  10. Gullieuszik M.,Kerber L.
  11. Marigo P.
  12. Ripepi V.
  13. Bekki K.
  14. Bell C.P.M.
  15. de Grijs R.,Groenewegen M.A.T.
  16. Ivanov V.D.
  17. Oliveira J.M.
  18. Sun N.-C.
  19. van Loon J.T.
  20. Published by
    CDS
Abstract

We derive the spatially resolved star formation history (SFH) for a 96deg^2^ area across the main body of the Large Magellanic Cloud (LMC), using the near- infrared photometry from the VISTA survey of the Magellanic Clouds (VMC). The data and analyses are characterized by a great degree of homogeneity and a low sensitivity to the interstellar extinction. 756 subregions of size 0.125deg^2^ - corresponding to projected sizes of about 296x322pc^2^ in the LMC - are analysed. The resulting SFH maps, with typical resolution of 0.2-0.3dex in logarithm of age, reveal main features in the LMC disc at different ages: the patchy star formation at recent ages, the concentration of star formation on three spiral arms and on the Bar up to ages of ~1.6Gyr, and the wider and smoother distribution of older populations. The period of most intense star formation occurred roughly between 4 and 0.5Gyr ago, at rates of ~0.3M_{sun}_/yr. We compare young and old star formation rates with the observed numbers of RR Lyrae and Cepheids. We also derive a mean extinction and mean distance for every subregion, and the plane that best describes the spatial distribution of the mean distances. Our results cover an area about 50 per cent larger than the classical SFH maps derived from optical data. Main differences with respect to those maps are lower star formation rates at young ages, and a main peak of star formation being identified at ages slightly younger than 1Gyr.

Keywords
  1. Magellanic Clouds
Bibliographic source Bibcode
2021MNRAS.508..245M
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/508/245
IVOA Identifier IVOID
ivo://CDS.VizieR/J/MNRAS/508/245

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/508/245
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/508/245
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/508/245
IVOA Table Access TAP
http://tapvizier.cds.unistra.fr/TAPVizieR/tap
Run SQL-like queries with TAP-enabled clients (e.g., TOPCAT).
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
http://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/508/245/sfhjks?
https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/508/245/sfhjks?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/508/245/sfhjks?
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
http://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/508/245/sfhjksm1?
https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/508/245/sfhjksm1?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/508/245/sfhjksm1?
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
http://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/508/245/sfhjksp1?
https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/508/245/sfhjksp1?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/508/245/sfhjksp1?
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
http://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/508/245/sfhyks?
https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/508/245/sfhyks?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/508/245/sfhyks?
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
http://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/508/245/sfhyksm1?
https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/508/245/sfhyksm1?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/508/245/sfhyksm1?
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
http://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/508/245/sfhyksp1?
https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/508/245/sfhyksp1?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/508/245/sfhyksp1?

History

2021-10-21T09:12:19Z
Resource record created
2021-10-21T09:12:19Z
Created
2022-09-30T22:13:49Z
Updated

Contact

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CDS support team
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