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dc.contributor.authorPieres, Adrianopt_BR
dc.contributor.authorSantiago, Basilio Xavierpt_BR
dc.contributor.authorDrlica-Wagner, Alexpt_BR
dc.contributor.authorBechtol, Keithpt_BR
dc.contributor.authorMarel, Roeland Paul van derpt_BR
dc.contributor.authorBesla, Gurtinapt_BR
dc.contributor.authorMartin, Nicolas F.pt_BR
dc.contributor.authorBelokurov, Vasilypt_BR
dc.contributor.authorGallart, Carmept_BR
dc.contributor.authorMartínez-Delgado, Davidpt_BR
dc.contributor.authorMarshall, Jennifer L.pt_BR
dc.contributor.authorNöel, N. E. D.pt_BR
dc.contributor.authorMajewski, Steven Raymondpt_BR
dc.contributor.authorCioni, Maria-Rosa L.pt_BR
dc.contributor.authorLi, T. S.pt_BR
dc.contributor.authorHartley, Williampt_BR
dc.contributor.authorLuque Canaza, Elmer Fidelpt_BR
dc.contributor.authorConn, Blair Campbellpt_BR
dc.contributor.authorWalker, Alistairpt_BR
dc.contributor.authorBalbinot, Eduardopt_BR
dc.contributor.authorStringfellow, Guy S.pt_BR
dc.contributor.authorOlsen, Knut A. G.pt_BR
dc.contributor.authorNidever, D.L.pt_BR
dc.contributor.authorCosta, Luiz N. dapt_BR
dc.contributor.authorOgando, Ricardo L.C.pt_BR
dc.contributor.authorMaia, Marcio Antonio Geimbapt_BR
dc.contributor.authorFausti Neto, Angelopt_BR
dc.contributor.authorAbbott, Timothy M. C.pt_BR
dc.contributor.authorAbdalla, Filipe B.pt_BR
dc.contributor.authorAllam, Sahar S.pt_BR
dc.contributor.authorAnnis, James T.pt_BR
dc.contributor.authorBenoit-Lévy, Aurélienpt_BR
dc.contributor.authorCarnero Rosell, Aureliopt_BR
dc.contributor.authorCarrasco Kind, Matíaspt_BR
dc.contributor.authorCarretero Palacios, Jorgept_BR
dc.contributor.authorCunha, Carlos Eduardopt_BR
dc.contributor.authorD'Andrea, Christopher B.pt_BR
dc.contributor.authorDesai, S.pt_BR
dc.contributor.authorDiehl, H. Thomaspt_BR
dc.contributor.authorDoel, Peterpt_BR
dc.contributor.authorFlaugher, Brennapt_BR
dc.contributor.authorFosalba Vela, Pablopt_BR
dc.contributor.authorGarcía-Bellido, Juanpt_BR
dc.contributor.authorGruen, Danielpt_BR
dc.contributor.authorGruendl, Robert A.pt_BR
dc.contributor.authorGschwend, Julia de Figueiredopt_BR
dc.contributor.authorGutierrez, Gaston R.pt_BR
dc.contributor.authorHonscheid, K.pt_BR
dc.contributor.authorJames, David J.pt_BR
dc.contributor.authorKuehn, Kylerpt_BR
dc.contributor.authorKuropatkin, Nikolay P.pt_BR
dc.contributor.authorMenanteau, Felipept_BR
dc.contributor.authorMiquel, Ramonpt_BR
dc.contributor.authorPlazas Malagón, Andrés Alejandropt_BR
dc.contributor.authorRomer, Anita K.pt_BR
dc.contributor.authorSako, Maript_BR
dc.contributor.authorSanchez-Alvaro, Eusebiopt_BR
dc.contributor.authorScarpine, Victor Emanuelpt_BR
dc.contributor.authorSchubnell, Michaelpt_BR
dc.contributor.authorSevilla Noarbe, Ignaciopt_BR
dc.contributor.authorSmith, Robert Christopherpt_BR
dc.contributor.authorSoares-Santos, Marcellept_BR
dc.contributor.authorSobreira, Fláviapt_BR
dc.contributor.authorSuchyta, Ericpt_BR
dc.contributor.authorSwanson, Molly E. C.pt_BR
dc.contributor.authorTarle, Gregorypt_BR
dc.contributor.authorTucker, Douglas L.pt_BR
dc.contributor.authorWester, William Carlpt_BR
dc.date.accessioned2017-09-28T02:28:37Zpt_BR
dc.date.issued2017pt_BR
dc.identifier.issn0035-8711pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/169027pt_BR
dc.description.abstractWe report the discovery of a stellar overdensity 8◦ north of the centre of the Small Magellanic Cloud (SMC; Small Magellanic Cloud Northern Over-Density; SMCNOD), using data from the first 2 yr of the Dark Energy Survey (DES) and the first year of theMAGellanic SatelLITEs Survey (MagLiteS). The SMCNOD is indistinguishable in age, metallicity and distance from the nearby SMC stars, being primarily composed of intermediate-age stars (6 Gyr, Z=0.001), with a small fraction of young stars (1 Gyr, Z=0.01). The SMCNOD has an elongated shape with an ellipticity of 0.6 and a size of 6◦ × 2◦. It has an absolute magnitude of MV = −7.7, rh = 2.1 kpc, and μV(r < rh) = 31.2 mag arcsec−2. We estimate a stellar mass of 105 M , following a Kroupa mass function. The SMCNOD was probably removed from the SMC disc by tidal stripping, since it is located near the head of the Magellanic Stream, and the literature indicates likely recent Large Magellanic Cloud-SMC encounters. This scenario is supported by the lack of significant HI gas. Other potential scenarios for the SMCNOD origin are a transient overdensity within the SMC tidal radius or a primordial SMC satellite in advanced stage of disruption.en
dc.format.mimetypeapplication/pdf
dc.language.isoengpt_BR
dc.relation.ispartofMonthly notices of the Royal Astronomical Society. Oxford. Vol. 468, no. 2 (June 2017), p. 1349-1360pt_BR
dc.rightsOpen Accessen
dc.subjectGalaxies: interactionsen
dc.subjectPequena Nuvem de Magalhãespt_BR
dc.subjectMagellanic Cloudsen
dc.subjectMapeamentos astronômicospt_BR
dc.subjectFormacao de estrelaspt_BR
dc.titleA stellar overdensity associated with the Small Magellanic Cloudpt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb001044356pt_BR
dc.type.originEstrangeiropt_BR


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