Monitoring low-mass stars in NGC 2362 Virtual Observatory Resource

Authors
  1. Irwin J.
  2. Hodgkin S.
  3. Aigrain S.
  4. Bouvier J.
  5. Hebb L.
  6. Irwin M.
  7. Moraux E.
  8. Published by
    CDS
Abstract

We report on the results of a time-series photometric survey of NGC 2362, carried out using the CTIO 4-m Blanco telescope and Mosaic-II detector as part of the Monitor project. Rotation periods were derived for 271(*) candidate cluster members over the mass range 0.1~<M/M_{sun}_<~1.2. The rotation period distributions show a clear mass-dependent morphology, qualitatively similar to that in NGC 2264, as would be expected from the age of this cluster. Using models of angular momentum evolution, we show that angular momentum losses over the ~1-5Myr age range appear to be needed in order to reproduce the evolution of the slowest rotators in the sample from the ONC to NGC 2362, as found by many previous studies. By incorporating Spitzer IRAC mid-infrared (mid-IR) measurements, we found that three to four objects showing mid-IR excesses indicative of the presence of circumstellar discs were all slow rotators, as would be expected in the disc regulation paradigm for early pre-main-sequence angular momentum evolution, but this result is not statistically significant at present, given the extremely limited sample size. (*) The abstract indicates 271 clusters, but the actual number is 272.

Keywords
  1. open-star-clusters
  2. pre-main-sequence-stars
  3. infrared-photometry
Bibliographic source Bibcode
2008MNRAS.384..675I
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/384/675
IVOA Identifier IVOID
ivo://CDS.VizieR/J/MNRAS/384/675
Document Object Identifer DOI
doi:10.26093/cds/vizier.73840675

Access

Web browser access HTML
https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/384/675
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/384/675
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/384/675
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/MNRAS/384/675/table1?
https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/384/675/table1?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/384/675/table1?

History

2008-10-07T13:31:05Z
Resource record created
2008-10-07T13:31:05Z
Created
2024-07-06T20:15:38Z
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