A three-decade outburst of the LMC luminous blue variable R127 draws to a close

Autores
Walborn, Nolan Revere; Stahl, O.; Gamen, Roberto Claudio; Szeifert, T.; Morrell, Nidia Irene; Smith, N. I.; Howarth, I. D.; Humphreys, R. M.; Bond, H. E.; Lennon, D. J.
Año de publicación
2008
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The paradigmatic luminous blue variable R127 in the Large Magellanic Cloud has been found in the intermediate, peculiar early-B state, and substantially fainter in visual light, signaling the final decline from its major outburst that began between 1978 and 1980. This transformation was detected in 2008 January, but archival data show that it began between early 2005 and early 2007. In fact, significant changes from the maximum, peculiar A-type spectrum, which was maintained from 1986 through 1998, had already begun the following year, coinciding with a steep drop in visual light. We show detailed correspondences between the spectrum and light, in which the decline mimics the rise. Moreover, these trends are not monotonic but are characterized by multiple spikes and dips, which may provide constraints on the unknown outburst mechanism. Intensive photometric and spectroscopic monitoring of R127 should now resume, to follow the decline presumably back to the quiescent Ofpe/WN9 state, in order to fully document the remainder of this unique observational opportunity.
Facultad de Ciencias Astronómicas y Geofísicas
Consejo Nacional de Investigaciones Científicas y Técnicas
Materia
Astronomía
Magellanic Clouds
Early type stars
R127
HDE 269858
Variable stars
Winds
Outflows
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/93875

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network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling A three-decade outburst of the LMC luminous blue variable R127 draws to a closeWalborn, Nolan RevereStahl, O.Gamen, Roberto ClaudioSzeifert, T.Morrell, Nidia IreneSmith, N. I.Howarth, I. D.Humphreys, R. M.Bond, H. E.Lennon, D. J.AstronomíaMagellanic CloudsEarly type starsR127HDE 269858Variable starsWindsOutflowsThe paradigmatic luminous blue variable R127 in the Large Magellanic Cloud has been found in the intermediate, peculiar early-B state, and substantially fainter in visual light, signaling the final decline from its major outburst that began between 1978 and 1980. This transformation was detected in 2008 January, but archival data show that it began between early 2005 and early 2007. In fact, significant changes from the maximum, peculiar A-type spectrum, which was maintained from 1986 through 1998, had already begun the following year, coinciding with a steep drop in visual light. We show detailed correspondences between the spectrum and light, in which the decline mimics the rise. Moreover, these trends are not monotonic but are characterized by multiple spikes and dips, which may provide constraints on the unknown outburst mechanism. Intensive photometric and spectroscopic monitoring of R127 should now resume, to follow the decline presumably back to the quiescent Ofpe/WN9 state, in order to fully document the remainder of this unique observational opportunity.Facultad de Ciencias Astronómicas y GeofísicasConsejo Nacional de Investigaciones Científicas y Técnicas2008-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfL33-L36http://sedici.unlp.edu.ar/handle/10915/93875enginfo:eu-repo/semantics/altIdentifier/issn/0004-637Xinfo:eu-repo/semantics/altIdentifier/doi/10.1086/591525info:eu-repo/semantics/altIdentifier/hdl/11336/43227info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:19:26Zoai:sedici.unlp.edu.ar:10915/93875Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:19:27.045SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv A three-decade outburst of the LMC luminous blue variable R127 draws to a close
title A three-decade outburst of the LMC luminous blue variable R127 draws to a close
spellingShingle A three-decade outburst of the LMC luminous blue variable R127 draws to a close
Walborn, Nolan Revere
Astronomía
Magellanic Clouds
Early type stars
R127
HDE 269858
Variable stars
Winds
Outflows
title_short A three-decade outburst of the LMC luminous blue variable R127 draws to a close
title_full A three-decade outburst of the LMC luminous blue variable R127 draws to a close
title_fullStr A three-decade outburst of the LMC luminous blue variable R127 draws to a close
title_full_unstemmed A three-decade outburst of the LMC luminous blue variable R127 draws to a close
title_sort A three-decade outburst of the LMC luminous blue variable R127 draws to a close
dc.creator.none.fl_str_mv Walborn, Nolan Revere
Stahl, O.
Gamen, Roberto Claudio
Szeifert, T.
Morrell, Nidia Irene
Smith, N. I.
Howarth, I. D.
Humphreys, R. M.
Bond, H. E.
Lennon, D. J.
author Walborn, Nolan Revere
author_facet Walborn, Nolan Revere
Stahl, O.
Gamen, Roberto Claudio
Szeifert, T.
Morrell, Nidia Irene
Smith, N. I.
Howarth, I. D.
Humphreys, R. M.
Bond, H. E.
Lennon, D. J.
author_role author
author2 Stahl, O.
Gamen, Roberto Claudio
Szeifert, T.
Morrell, Nidia Irene
Smith, N. I.
Howarth, I. D.
Humphreys, R. M.
Bond, H. E.
Lennon, D. J.
author2_role author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Astronomía
Magellanic Clouds
Early type stars
R127
HDE 269858
Variable stars
Winds
Outflows
topic Astronomía
Magellanic Clouds
Early type stars
R127
HDE 269858
Variable stars
Winds
Outflows
dc.description.none.fl_txt_mv The paradigmatic luminous blue variable R127 in the Large Magellanic Cloud has been found in the intermediate, peculiar early-B state, and substantially fainter in visual light, signaling the final decline from its major outburst that began between 1978 and 1980. This transformation was detected in 2008 January, but archival data show that it began between early 2005 and early 2007. In fact, significant changes from the maximum, peculiar A-type spectrum, which was maintained from 1986 through 1998, had already begun the following year, coinciding with a steep drop in visual light. We show detailed correspondences between the spectrum and light, in which the decline mimics the rise. Moreover, these trends are not monotonic but are characterized by multiple spikes and dips, which may provide constraints on the unknown outburst mechanism. Intensive photometric and spectroscopic monitoring of R127 should now resume, to follow the decline presumably back to the quiescent Ofpe/WN9 state, in order to fully document the remainder of this unique observational opportunity.
Facultad de Ciencias Astronómicas y Geofísicas
Consejo Nacional de Investigaciones Científicas y Técnicas
description The paradigmatic luminous blue variable R127 in the Large Magellanic Cloud has been found in the intermediate, peculiar early-B state, and substantially fainter in visual light, signaling the final decline from its major outburst that began between 1978 and 1980. This transformation was detected in 2008 January, but archival data show that it began between early 2005 and early 2007. In fact, significant changes from the maximum, peculiar A-type spectrum, which was maintained from 1986 through 1998, had already begun the following year, coinciding with a steep drop in visual light. We show detailed correspondences between the spectrum and light, in which the decline mimics the rise. Moreover, these trends are not monotonic but are characterized by multiple spikes and dips, which may provide constraints on the unknown outburst mechanism. Intensive photometric and spectroscopic monitoring of R127 should now resume, to follow the decline presumably back to the quiescent Ofpe/WN9 state, in order to fully document the remainder of this unique observational opportunity.
publishDate 2008
dc.date.none.fl_str_mv 2008-12
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/93875
url http://sedici.unlp.edu.ar/handle/10915/93875
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0004-637X
info:eu-repo/semantics/altIdentifier/doi/10.1086/591525
info:eu-repo/semantics/altIdentifier/hdl/11336/43227
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
L33-L36
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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