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dc.contributor.authorParker, Joel Wm.pt_BR
dc.contributor.authorClayton, Geoffrey C.pt_BR
dc.contributor.authorWinge, Claudiapt_BR
dc.contributor.authorConti, Peter S.pt_BR
dc.date.accessioned2014-12-31T02:10:51Zpt_BR
dc.date.issued1993pt_BR
dc.identifier.issn0004-637Xpt_BR
dc.identifier.urihttp://hdl.handle.net/10183/108723pt_BR
dc.description.abstractWe have discovered that R143 in the Large Magellanic Cloud is a luminous blue variable (LBV), the first and perhaps the lone LBV in the central cluster of 30 Doradus, and only the sixth known LMC LBV. Photo­ metric and spectroscopic observations over the past 40 yr indicate that during that time R143 moved redward (changing from an F5 to F8 supergiant), then blueward (possibly becoming as early as 09.5), and is now moving back to the red (currently appearing as a late B supergiant). Similarly, the V magnitude of the star has changed by at least 1.4 mag. lmages of R143 show very unusual filaments of nebulosity extending from the star to a shell at a distance of 3.5 pc, perhaps due to a similar ejection mechanism that created the spiral jets and shell associated with AG Car, another LBVen
dc.format.mimetypeapplication/pdf
dc.language.isoengpt_BR
dc.relation.ispartofThe Astrophysical journal. Chicago. Vol. 409, no. 2, pt. 1 (June 1993), p. 770-775pt_BR
dc.rightsOpen Accessen
dc.subjectISM: individual (30 Doradus)en
dc.subjectNebulosaspt_BR
dc.subjectGrande Nuvem de Magalhãespt_BR
dc.subjectStars: variables: other (luminous blue variables)en
dc.subjectEstrelas variaveispt_BR
dc.subjectSupergiantsen
dc.subjectEstrelas supergigantespt_BR
dc.subjectObservações astronômicas no visívelpt_BR
dc.titleA new luminous blue variable : R143 in 30 Doraduspt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb000056269pt_BR
dc.type.originEstrangeiropt_BR


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