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

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...

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Detalles Bibliográficos
Autores principales:	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.
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	2008
Materias:	Astronomía Magellanic Clouds Early type stars R127 HDE 269858 Variable stars Winds Outflows
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/93875
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-93875
record_format	dspace
institution	Universidad Nacional de La Plata
institution_str	I-19
repository_str	R-120
collection	SEDICI (UNLP)
language	Inglés
topic	Astronomía Magellanic Clouds Early type stars R127 HDE 269858 Variable stars Winds Outflows
spellingShingle	Astronomía Magellanic Clouds Early type stars R127 HDE 269858 Variable stars Winds Outflows 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. A three-decade outburst of the LMC luminous blue variable R127 draws to a close
topic_facet	Astronomía Magellanic Clouds Early type stars R127 HDE 269858 Variable stars Winds Outflows
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.
format	Articulo Articulo
author	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_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_sort	Walborn, Nolan Revere
title	A three-decade outburst of the LMC luminous blue variable R127 draws to a close
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	three-decade outburst of the lmc luminous blue variable r127 draws to a close
publishDate	2008
url	http://sedici.unlp.edu.ar/handle/10915/93875
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A three-decade outburst of the LMC luminous blue variable R127 draws to a close

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