Properties of SMC star clusters Virtual Observatory Resource

Authors
  1. Gatto M.
  2. Ripepi V.
  3. Bellazzini M.
  4. Tosi M.
  5. Cignoni M.
  6. Tortora C.,Leccia S.
  7. Clementini G.
  8. Grebel E.K.
  9. Longo G.
  10. Marconi M.
  11. Musella I.
  12. Published by
    CDS
Abstract

We derived surface brightness profiles in the g band for 170 Small Magellanic Cloud (SMC) star clusters (SCs) mainly located in the central region of the galaxy. We provide a set of homogeneous structural parameters obtained by fitting Elson-Fall-Freeman and King models. Through a careful analysis of their colour-magnitude diagrams we also supply the ages for a subsample of 134 SCs. For the first time, such a large sample of SCs in the SMC is homogeneously characterized in terms of their sizes, luminosities, and masses, widening the probed region of the parameter space, down to hundreds of solar masses. We used these data to explore the evolution of the SC's structural parameters with time. In particular, we confirm the existence of a physical mechanism that induces an increase of the core radius after 0.3-1.0Gyr. We suggest that cluster mass could be the main parameter driving the inner expansion, as none of the SCs having log(M/M-{sun}_)<=3.5dex analysed in this work undergoes to such an expansion. We also detected a mass-size relationship almost over the entire range of SCs masses investigated here. Finally, our data suggest that globally the SMC SC system is dynamically evolved.

Keywords
  1. Magellanic Clouds
  2. Open star clusters
  3. Optical astronomy
Bibliographic source Bibcode
2021MNRAS.507.3312G
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/507/3312
IVOA Identifier IVOID
ivo://CDS.VizieR/J/MNRAS/507/3312

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/507/3312
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/507/3312
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/507/3312
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/507/3312/clusters?
https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/507/3312/clusters?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/507/3312/clusters?

History

2022-09-16T11:11:28Z
Resource record created
2022-09-16T11:11:28Z
Created
2022-09-30T23:19:34Z
Updated

Contact

Name
CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
E-Mail
cds-question@unistra.fr