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dc.contributor.authorEsplin, T. L.
dc.contributor.authorLuhman, K. L.
dc.contributor.authorMiller, E. B.
dc.contributor.authorMamajek, E. E.
dc.date.accessioned2018-12-03T23:14:41Z
dc.date.available2018-12-03T23:14:41Z
dc.date.issued2018-08
dc.identifier.citationT. L. Esplin et al 2018 AJ 156 75en_US
dc.identifier.issn1538-3881
dc.identifier.doi10.3847/1538-3881/aacce0
dc.identifier.urihttp://hdl.handle.net/10150/631086
dc.description.abstractWe have performed a survey for new members of the Upper Sco association that have circumstellar disks using mid-infrared photometry from the Wide-field Infrared Survey Explorer (WISE). Through optical and near-infrared spectroscopy, we have confirmed 185 candidates as likely members of Upper Sco with spectral types ranging from mid-K to M9. They comprise similar to 36% of the known disk-bearing members of the association. We also have compiled all available mid-infrared photometry from WISE and the Spitzer Space Telescope for the known members of Upper Sco, resulting in a catalog of data for 1608 objects. We have used these data to identify the members that exhibit excess emission from disks and we have classified the evolutionary stages of those disks with criteria similar to those applied in our previous studies of Taurus and Upper Sco. Among 484 members with excesses in at least one band (excluding five Be stars), we classify 296 disks as full, 66 as evolved, 19 as transitional, 22 as evolved or transitional, and 81 as evolved transitional or debris. Many of these disks have not been previously reported, including 129 full disks and 50 disks that are at more advanced evolutionary stages.en_US
dc.description.sponsorshipNASA Astrophysics Data Analysis Program [NNX12AI58G]; NASA NExSS program; NASA [NNH14CK55B]; NSF; U.S. Government [NAG W-2166]; Pennsylvania State University; Eberly College of Science; Pennsylvania Space Grant Consortiumen_US
dc.language.isoenen_US
dc.publisherIOP PUBLISHING LTDen_US
dc.relation.urlhttp://stacks.iop.org/1538-3881/156/i=2/a=75?key=crossref.6b2ef69cfd9f4a5f04d36010186095acen_US
dc.rights© 2018. The American Astronomical Society. All rights reserved.en_US
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.subjectaccretion, accretion disksen_US
dc.subjectbrown dwarfsen_US
dc.subjectprotoplanetary disksen_US
dc.subjectstars: formationen_US
dc.subjectstars: low-massen_US
dc.subjectstars: pre-main sequenceen_US
dc.titleA WISE Survey of Circumstellar Disks in the Upper Scorpius Associationen_US
dc.typeArticleen_US
dc.contributor.departmentUniv Arizona, Steward Observen_US
dc.identifier.journalASTRONOMICAL JOURNALen_US
dc.description.collectioninformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.en_US
dc.eprint.versionFinal published versionen_US
dc.source.journaltitleThe Astronomical Journal
dc.source.volume156
dc.source.issue2
dc.source.beginpage75
refterms.dateFOA2018-12-03T23:14:42Z


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