LMC Young Stellar Structures Virtual Observatory Resource

Authors
  1. Miller A.E.
  2. Cioni M.-R.L.
  3. de Grijs R.
  4. Sun N.-C.
  5. Bell C.P.M.,Choudhury S.
  6. Ivanov V.D.
  7. Marconi M.
  8. Oliveira J.M.
  9. Petr-Gotzens M.,Ripepi V.
  10. van Loon J.T.
  11. Published by
    CDS
Abstract

We perform a statistical clustering analysis of upper main-sequence stars in the Large Magellanic Cloud (LMC) using data from the Visible and Infrared Survey Telescope for Astronomy survey of the Magellanic Clouds. We map over 2500 young stellar structures at 15 significance levels across ~120 square degrees centred on the LMC. The structures have sizes ranging from a few parsecs to over 1kpc. We find that the young structures follow power-law size and mass distributions. From the perimeter-area relation, we derive a perimeter-area dimension of 1.44+/-0.20. From the mass-size relation and the size distribution, we derive two-dimensional fractal dimensions of 1.50+/-0.10 and 1.61+/-0.20, respectively. We find that the surface density distribution is well-represented by a lognormal distribution. We apply the Larson relation to estimate the velocity dispersions and crossing times of these structures. Our results indicate that the fractal nature of the young stellar structures has been inherited from the gas clouds from which they form and that this architecture is generated by supersonic turbulence. Our results also suggest that star formation in the LMC is scale-free from 10pc to 700pc.

Keywords
  1. Magellanic Clouds
  2. Stellar associations
  3. Open star clusters
  4. Galaxies
  5. Infrared sources
  6. Early-type stars
Bibliographic source Bibcode
2022MNRAS.512.1196M
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/512/1196
IVOA Identifier IVOID
ivo://CDS.VizieR/J/MNRAS/512/1196

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/512/1196
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/512/1196
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/512/1196
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/512/1196/table1?
https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/512/1196/table1?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/512/1196/table1?

History

2022-05-02T07:53:46Z
Resource record created
2022-05-02T07:53:46Z
Created
2022-06-13T12:09:12Z
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