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dc.rights.licensePublished 2020 June 18 • © 2020. The American Astronomical Society. All rights reserved.-
dc.contributor.authorStauffer, J.-
dc.contributor.authorBarrado, D.-
dc.contributor.authorDavid, T.-
dc.contributor.authorRebull, L. M.-
dc.contributor.authorHillenbrand, L. A.-
dc.contributor.authorMamajek, E. E.-
dc.contributor.authorOppenheimer, R.-
dc.contributor.authorAigrain, S.-
dc.contributor.authorBouy, H.-
dc.contributor.authorLillo Box, J.-
dc.contributor.otherUnidad de Excelencia Científica María de Maeztu Centro de Astrobiología del Instituto Nacional de Técnica Aeroespacial y CSIC, MDM-2017-0737-
dc.date.accessioned2021-04-13T14:18:16Z-
dc.date.available2021-04-13T14:18:16Z-
dc.date.issued2020-06-18-
dc.identifier.citationThe Astronomical Journal 160(1): 30(2020)es
dc.identifier.issn0004-6256-
dc.identifier.otherhttps://iopscience.iop.org/article/10.3847/1538-3881/ab93c9-
dc.identifier.urihttp://hdl.handle.net/20.500.12666/327-
dc.description.abstractOppenheimer et al. discovered two M5 dwarfs in the Pleiades with nearly primordial lithium. These stars are not low enough in mass to represent the leading edge of the lithium depletion boundary at Pleiades age (~125 Myr). A possible explanation for the enhanced lithium in these stars is that they are actually not members of the Pleiades but instead are members of a younger moving group seen in projection toward the Pleiades. We have used data from Gaia DR2 to confirm that these two stars, HHJ 339 and HHJ 430, are indeed not members of the Pleiades. Based on their space motions, parallaxes, and positions in a Gaia-based color–magnitude diagram, it is probable that these two stars are about 40 parsecs foreground to the Pleiades and have ages of ~25 Myr. Kinematically they are best matched to the 32 Ori moving group.es
dc.description.sponsorshipSome of the data presented in this paper were obtained from the Mikulski Archive for Space Telescopes (MAST). Support for MAST for non-Hubble Space Telescope data is provided by the NASA Office of Space Science via grant NNX09AF08G and by other grants and contracts. This paper includes data collected by the Kepler mission. Funding for the Kepler mission is provided by the NASA Science Mission directorate. This research has made use of the NASA/IPAC Infrared Science Archive (IRSA), which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration. This research has made use of data products from the Two Micron All-Sky Survey (2MASS), which is a joint project of the University of Massachusetts and the Infrared Processing and Analysis Center, funded by the National Aeronautics and Space Administration and the National Science Foundation. The 2MASS data are served by the NASA/IPAC Infrared Science Archive, which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration. This research has made use of NASA's Astrophysics Data System (ADS) Abstract Service, and of the SIMBAD database, operated at CDS, Strasbourg, France. Part of this research was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration. D.B. and J.L.B. have been funded by the Spanish State Research Agency (AEI) Projects No. ESP2017-87676-C5-1-R and No. MDM-2017-0737 Unidad de Excelencia "Maria de Maeztu"-Centro de Astrobiologia (INTA-CSIC).es
dc.language.isoenges
dc.publisherThe Institute of Physics (IOP)es
dc.relationinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/ESP2017-87676-C5-1-R-
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectMoving clusterses
dc.subjectStar clusterses
dc.subjectOpen star clusterses
dc.titlePleiades or Not? Resolving the Status of the Lithium-rich M Dwarfs HHJ 339 and HHJ 430es
dc.typeinfo:eu-repo/semantics/articlees
dc.contributor.orcidStauffer, J. [0000-0003-3595-7382]-
dc.contributor.orcidDavid, T. [0000-0001-6534-6246]-
dc.contributor.orcidRebull, L. M. [0000-0001-6381-515X]-
dc.contributor.orcidMamajek, E. E. [0000-0003-2008-1488]-
dc.contributor.orcidOppenheimer, R. [0000-0001-7130-7681]-
dc.contributor.orcidAigrain, S. [0000-0003-1453-0574]-
dc.contributor.orcidBouy, H. [0000-0002-7084-487X]-
dc.identifier.doi10.3847/1538-3881/ab93c9-
dc.identifier.e-issn1538-3881-
dc.contributor.funderAgencia Estatal de Investigación (AEI)-
dc.contributor.funderNational Aeronautics and Space Administration (NASA)-
dc.description.peerreviewedPeer reviewes
dc.identifier.funderhttp://dx.doi.org/10.13039/501100011033-
dc.identifier.funderhttp://dx.doi.org/10.13039/100000104-
dc.type.hasVersioninfo:eu-repo/semantics/publishedVersion-
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess-
dc.type.coarhttp://purl.org/coar/resource_type/c_6501-
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