Show simple item record

dc.contributor.authorMassi, F.
dc.contributor.authorDi Carlo, E.
dc.contributor.authorCodella, C.
dc.contributor.authorTesti, L.
dc.contributor.authorVanzi, L.
dc.contributor.authorGomes, J.I.
dc.date.accessioned2010-08-16T11:20:00Z
dc.date.available2010-08-16T11:20:00Z
dc.date.issued2010
dc.identifier.citationMassi , F , Di Carlo , E , Codella , C , Testi , L , Vanzi , L & Gomes , J I 2010 , ' Testing circumstellar disk lifetimes in young embedded clusters associated with the Vela Molecular Ridge ' , Astronomy and Astrophysics , vol. 516 . https://doi.org/10.1051/0004-6361/200913671
dc.identifier.issn0004-6361
dc.identifier.otherPURE: 179387
dc.identifier.otherPURE UUID: 65a07f0f-0f7b-4b12-8f19-ca8f31760412
dc.identifier.otherdspace: 2299/4777
dc.identifier.otherScopus: 77957853889
dc.identifier.urihttp://hdl.handle.net/2299/4777
dc.descriptionOriginal article can be found at: http://www.aanda.org/ Copyright The European Southern Observatory (ESO)
dc.description.abstractContext. The Vela Molecular Ridge hosts a number of young embedded star clusters at the same evolutionary stage. Aims. We test whether the fraction of members with a circumstellar disk in a sample of clusters in the cloud D of the Vela Molecular Ridge, is consistent with relations derived for larger samples of star clusters with an age spread. In addition, we constrain the age of the young embedded star clusters associated with cloud D. Methods. We carried out L (3.78 μm) photometry using images of six young embedded star clusters associated with cloud D of the Vela Molecular Ridge, taken with ISAAC at the VLT. These data are complemented with the available HKs photometry. The 6 clusters are of roughly the same size and appear to be at the same evolutionary stage. The fraction of stars with a circumstellar disk was measured in each cluster by counting the fraction of sources found to have a NIR excess in colour-colour (HKsL) diagrams. Results. The L photometry allowed us to identify the NIR counterparts of the IRAS sources associated with the clusters. The fraction of stars with a circumstellar disk appears to be constant within the errors for the 6 clusters. There is a hint that this is lower for the most massive stars. The age of the clusters is constrained to be 1–2 Myr. Conclusions. The fraction of stars with a circumstellar disk in the observed sample is consistent with the relations derived from larger samples of star clusters and with other age estimates for cloud D. The fraction may be lower for the most massive stars. Our results agree with a scenario where all intermediate and low-mass stars form with a disk, whose lifetime is shorter for higher mass stars.en
dc.language.isoeng
dc.relation.ispartofAstronomy and Astrophysics
dc.titleTesting circumstellar disk lifetimes in young embedded clusters associated with the Vela Molecular Ridgeen
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.description.statusPeer reviewed
rioxxterms.versionofrecordhttps://doi.org/10.1051/0004-6361/200913671
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record