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IC 4665 DANCe

hal.structure.identifierLaboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
dc.contributor.authorMIRET-ROIG, N.
hal.structure.identifierLaboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
dc.contributor.authorBOUY, H.
hal.structure.identifierLaboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
dc.contributor.authorOLIVARES, J.
hal.structure.identifierUniversidad Nacional de Educación a Distancia [UNED]
dc.contributor.authorSARRO, L. M.
hal.structure.identifierTokyo University of Science [Tokyo]
dc.contributor.authorTAMURA, M.
hal.structure.identifierNational Optical Astronomy Observatory [NOAO]
dc.contributor.authorALLEN, L.
hal.structure.identifierInstitut d'Astrophysique de Paris [IAP]
dc.contributor.authorBERTIN, E.
hal.structure.identifierLaboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
dc.contributor.authorSERRE, S.
hal.structure.identifierUniversidad de Cádiz = University of Cádiz [UCA]
dc.contributor.authorBERIHUETE, A.
dc.contributor.authorBELETSKY, Y.
hal.structure.identifierCentro de Astrobiologia [Madrid] [CAB]
dc.contributor.authorBARRADO, D.
hal.structure.identifierCentro de Astrobiologia [Madrid] [CAB]
dc.contributor.authorHUÉLAMO, N.
hal.structure.identifierAstrophysique Interprétation Modélisation [AIM (UMR7158 / UMR_E_9005 / UM_112)]
dc.contributor.authorCUILLANDRE, J.-C.
hal.structure.identifierInstitut de Planétologie et d'Astrophysique de Grenoble [IPAG]
dc.contributor.authorMORAUX, E.
hal.structure.identifierInstitut de Planétologie et d'Astrophysique de Grenoble [IPAG]
dc.contributor.authorBOUVIER, J.
dc.date.issued2019-11
dc.identifier.issn0004-6361
dc.description.abstractEnContext. The study of star formation is extremely challenging, due to the lack of complete and clean samples of young nearby clusters and star-forming regions. The recent Gaia DR2 catalogue complemented with the deep ground-based COSMIC DANCe catalogue offers a new database of unprecedented accuracy to revisit the membership of clusters and star-forming regions. The 30 Myr open cluster IC 4665 is one of the few well-known clusters of this age and it is an excellent target where evolutionary models can be tested and planetary formation studied.Aims. We provide a comprehensive membership analysis of IC 4665 and study the following properties: empirical isochrones, distance, magnitude distribution, present-day system mass function, and spatial distribution.Methods. We used the Gaia DR2 catalogue together with the DANCe catalogue to look for members via a probabilistic model of the distribution of the observable quantities in both the cluster and background populations.Results. We obtained a final list of 819 candidate members that cover a 12.4 magnitude range (7 <  J <  19.4). We find that 50% are new candidates, and we estimate a conservative contamination rate of 20%. This unique sample of members allows us to obtain a present-day system mass function in the range of 0.02–6 M⊙, which reveals a number of details not seen in previous studies. In addition, we find that a spherically symmetric spatial distribution is favoured by our final list of members for this young open cluster.Conclusions. Our membership analysis represents a significant increase in the quantity and quality (low contamination) with respect to previous studies. It offers an excellent opportunity to revisit other fundamental parameters such as age.
dc.description.sponsorshipInitiative d'excellence de l'Université de Bordeaux
dc.language.isoen
dc.publisherEDP Sciences
dc.subject.enstars: low-mass
dc.subject.enbrown dwarfs
dc.subject.enproper motions
dc.subject.enstars: luminosity function
dc.subject.enmass function
dc.subject.enopen clusters and associations: individual: IC 4665
dc.title.enIC 4665 DANCe
dc.title.enI. Members, empirical isochrones, magnitude distributions, present-day system mass function, and spatial distribution
dc.typeArticle de revue
dc.identifier.doi10.1051/0004-6361/201935518
dc.subject.halPhysique [physics]/Astrophysique [astro-ph]
bordeaux.journalAstronomy and Astrophysics - A&A
bordeaux.pageA57
bordeaux.volume631
bordeaux.peerReviewedoui
hal.identifiercea-02324358
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//cea-02324358v1
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