eMSTOs in low mass clusters Virtual Observatory Resource

Authors
  1. Piatti A.E.
  2. Bastian N.
  3. Published by
    CDS
Abstract

We present an imaging analysis of four low mass stellar clusters (<~5000M_{sun}_) in the outer regions of the LMC in order to shed light on the extended main sequence turn-off (eMSTO) phenomenon observed in high mass clusters. The four clusters have ages between 1-2Gyr and two of them appear to host eMTSOs. The discovery of eMSTOs in such low mass clusters - more than 5 times less massive than the eMSTO clusters previously studied - suggests that mass is not the controlling factor in whether clusters host eMSTOs. Additionally, the narrow extent of the eMSTO in the two older clusters (~2Gyr) is in agreement with predictions of the stellar rotation scenario, as lower mass stars are expected to be magnetically braked, meaning that their colour magnitude diagrams should be better reproduced by canonical simple stellar populations. We also performed a structural analysis on all the clusters and found that a large core radius is not a requisite for a cluster to exhibit an eMSTO.

Keywords
  1. magellanic-clouds
  2. stellar-associations
  3. dwarf-stars
  4. visible-astronomy
  5. sloan-photometry
Bibliographic source Bibcode
2016A&A...590A..50P
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/590/A50
IVOA Identifier IVOID
ivo://CDS.VizieR/J/A+A/590/A50
Document Object Identifer DOI
doi:10.26093/cds/vizier.35900050

Access

Web browser access HTML
https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/590/A50
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/590/A50
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/590/A50
IVOA Table Access TAP
https://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).
https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/590/A50/table2?
https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/590/A50/table2?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/590/A50/table2?
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/590/A50/table3?
https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/590/A50/table3?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/590/A50/table3?
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/590/A50/table4?
https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/590/A50/table4?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/590/A50/table4?
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/590/A50/table5?
https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/590/A50/table5?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/590/A50/table5?

History

2016-05-10T08:12:50Z
Resource record created
2016-05-10T07:13:15Z
Updated
2016-05-10T08:12:50Z
Created

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