Confirmation of the Luminous Blue Variable Status of MWC 930

Autores
Miroshnichenko, A. S.; Manset, N.; Zharikov, S. V.; Zsargó, J.; Juárez Jiménez, J. A.; Groh, J. H.; Levato, Orlando Hugo; Grosso, Monica Gladys; Rudy, R. J.; Laag, E. A.; Crawford, K. B.; Puetter, R. C.; Reichart, D. E.; Ivarsen, K. M.; Haislip, J. B.; Nysewander, M. C.; LaCluyze, A. P.
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We present spectroscopic and photometric observations of the emission-line star MWC 930 (V446 Sct) during its long-term optical brightening in 2006–2013. Based on our earlier data we suggested that the object has features found in Luminous Blue Variables (LBV), such as a high luminosity (∼3 105 L⊙), a low wind terminal velocity (∼140 km s−1), and a tendency to show strong brightness variations (∼1 mag over 20 years). For the last ∼7 years it has been exhibiting a continuous optical and near-IR brightening along with a change of the emission-line spectrum appearance and cooling of the star’s photosphere. We present the object’s -band light curve, analyze the spectral variations, and compare the observed properties with those of other recognized Galactic LBVs, such as AG Car and HR Car. Overall we conclude the MWC 930 is a bona fide Galactic LBV that is currently in the middle of an S Dor cycle
Fil: Miroshnichenko, A. S.. University of North Carolina at Greensboro. Department of Physics and Astronomy; Estados Unidos
Fil: Manset, N.. CFHT Corporation; Estados Unidos
Fil: Zharikov, S. V.. Universidad Nacional Autónoma de México; México
Fil: Zsargó, J.. Instituto Politécnico Nacional. Escuela Superior de Física y Matemáticas. Departamento de Fisica; México
Fil: Juárez Jiménez, J. A.. Instituto Politécnico Nacional. Escuela Superior de Física y Matemáticas. Departamento de Fisica; México
Fil: Groh, J. H.. Geneva University. Geneva Observatory; Suiza
Fil: Levato, Orlando Hugo. Consejo Nacional de Investigaciones Cienti­ficas y Tecnicas. Centro Cientifico Tecnologico San Juan. Instituto de Ciencias Astronomicas de la Tierra y del Espacio; Argentina
Fil: Grosso, Monica Gladys. Consejo Nacional de Investigaciones Cienti­ficas y Tecnicas. Centro Cientifico Tecnologico San Juan. Instituto de Ciencias Astronomicas de la Tierra y del Espacio; Argentina
Fil: Rudy, R. J.. The Aerospace Corporation; Estados Unidos
Fil: Laag, E. A.. The Aerospace Corporation; Estados Unidos
Fil: Crawford, K. B.. The Aerospace Corporation; Estados Unidos
Fil: Puetter, R. C.. University of California at San Diego. Center for Astrophysics and Space Science; Estados Unidos
Fil: Reichart, D. E.. University of North Carolina. Department of Physics and Astronomy; Estados Unidos
Fil: Ivarsen, K. M.. University of North Carolina. Department of Physics and Astronomy; Estados Unidos
Fil: Haislip, J. B.. University of North Carolina. Department of Physics and Astronomy; Estados Unidos
Fil: Nysewander, M. C.. University of North Carolina. Department of Physics and Astronomy; Estados Unidos
Fil: LaCluyze, A. P.. University of North Carolina. Department of Physics and Astronomy; Estados Unidos
Materia
Stars
B[e] stars
Luminous stars
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/4974
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/4974
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Confirmation of the Luminous Blue Variable Status of MWC 930Miroshnichenko, A. S.Manset, N.Zharikov, S. V.Zsargó, J.Juárez Jiménez, J. A.Groh, J. H.Levato, Orlando HugoGrosso, Monica GladysRudy, R. J.Laag, E. A.Crawford, K. B.Puetter, R. C.Reichart, D. E.Ivarsen, K. M.Haislip, J. B.Nysewander, M. C.LaCluyze, A. P.StarsB[e] starsLuminous starshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We present spectroscopic and photometric observations of the emission-line star MWC 930 (V446 Sct) during its long-term optical brightening in 2006–2013. Based on our earlier data we suggested that the object has features found in Luminous Blue Variables (LBV), such as a high luminosity (∼3 105 L⊙), a low wind terminal velocity (∼140 km s−1), and a tendency to show strong brightness variations (∼1 mag over 20 years). For the last ∼7 years it has been exhibiting a continuous optical and near-IR brightening along with a change of the emission-line spectrum appearance and cooling of the star’s photosphere. We present the object’s -band light curve, analyze the spectral variations, and compare the observed properties with those of other recognized Galactic LBVs, such as AG Car and HR Car. Overall we conclude the MWC 930 is a bona fide Galactic LBV that is currently in the middle of an S Dor cycleFil: Miroshnichenko, A. S.. University of North Carolina at Greensboro. Department of Physics and Astronomy; Estados UnidosFil: Manset, N.. CFHT Corporation; Estados UnidosFil: Zharikov, S. V.. Universidad Nacional Autónoma de México; MéxicoFil: Zsargó, J.. Instituto Politécnico Nacional. Escuela Superior de Física y Matemáticas. Departamento de Fisica; MéxicoFil: Juárez Jiménez, J. A.. Instituto Politécnico Nacional. Escuela Superior de Física y Matemáticas. Departamento de Fisica; MéxicoFil: Groh, J. H.. Geneva University. Geneva Observatory; SuizaFil: Levato, Orlando Hugo. Consejo Nacional de Investigaciones Cienti­ficas y Tecnicas. Centro Cientifico Tecnologico San Juan. Instituto de Ciencias Astronomicas de la Tierra y del Espacio; ArgentinaFil: Grosso, Monica Gladys. Consejo Nacional de Investigaciones Cienti­ficas y Tecnicas. Centro Cientifico Tecnologico San Juan. Instituto de Ciencias Astronomicas de la Tierra y del Espacio; ArgentinaFil: Rudy, R. J.. The Aerospace Corporation; Estados UnidosFil: Laag, E. A.. The Aerospace Corporation; Estados UnidosFil: Crawford, K. B.. The Aerospace Corporation; Estados UnidosFil: Puetter, R. C.. University of California at San Diego. Center for Astrophysics and Space Science; Estados UnidosFil: Reichart, D. E.. University of North Carolina. Department of Physics and Astronomy; Estados UnidosFil: Ivarsen, K. M.. University of North Carolina. Department of Physics and Astronomy; Estados UnidosFil: Haislip, J. B.. University of North Carolina. Department of Physics and Astronomy; Estados UnidosFil: Nysewander, M. C.. University of North Carolina. Department of Physics and Astronomy; Estados UnidosFil: LaCluyze, A. P.. University of North Carolina. Department of Physics and Astronomy; Estados UnidosHindawi Publishing Corporation2014-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/4974Miroshnichenko, A. S.; Manset, N.; Zharikov, S. V.; Zsargó, J.; Juárez Jiménez, J. A.; et al.; Confirmation of the Luminous Blue Variable Status of MWC 930; Hindawi Publishing Corporation; Advances in Astronomy; 2014; 1-2014; 1-91687-7969enginfo:eu-repo/semantics/altIdentifier/url/http://www.hindawi.com/journals/aa/2014/130378/abs/info:eu-repo/semantics/altIdentifier/doi/10.1155/2014/130378info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:24:06Zoai:ri.conicet.gov.ar:11336/4974instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 14:24:06.707CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Confirmation of the Luminous Blue Variable Status of MWC 930
title Confirmation of the Luminous Blue Variable Status of MWC 930
spellingShingle Confirmation of the Luminous Blue Variable Status of MWC 930
Miroshnichenko, A. S.
Stars
B[e] stars
Luminous stars
title_short Confirmation of the Luminous Blue Variable Status of MWC 930
title_full Confirmation of the Luminous Blue Variable Status of MWC 930
title_fullStr Confirmation of the Luminous Blue Variable Status of MWC 930
title_full_unstemmed Confirmation of the Luminous Blue Variable Status of MWC 930
title_sort Confirmation of the Luminous Blue Variable Status of MWC 930
dc.creator.none.fl_str_mv Miroshnichenko, A. S.
Manset, N.
Zharikov, S. V.
Zsargó, J.
Juárez Jiménez, J. A.
Groh, J. H.
Levato, Orlando Hugo
Grosso, Monica Gladys
Rudy, R. J.
Laag, E. A.
Crawford, K. B.
Puetter, R. C.
Reichart, D. E.
Ivarsen, K. M.
Haislip, J. B.
Nysewander, M. C.
LaCluyze, A. P.
author Miroshnichenko, A. S.
author_facet Miroshnichenko, A. S.
Manset, N.
Zharikov, S. V.
Zsargó, J.
Juárez Jiménez, J. A.
Groh, J. H.
Levato, Orlando Hugo
Grosso, Monica Gladys
Rudy, R. J.
Laag, E. A.
Crawford, K. B.
Puetter, R. C.
Reichart, D. E.
Ivarsen, K. M.
Haislip, J. B.
Nysewander, M. C.
LaCluyze, A. P.
author_role author
author2 Manset, N.
Zharikov, S. V.
Zsargó, J.
Juárez Jiménez, J. A.
Groh, J. H.
Levato, Orlando Hugo
Grosso, Monica Gladys
Rudy, R. J.
Laag, E. A.
Crawford, K. B.
Puetter, R. C.
Reichart, D. E.
Ivarsen, K. M.
Haislip, J. B.
Nysewander, M. C.
LaCluyze, A. P.
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Stars
B[e] stars
Luminous stars
topic Stars
B[e] stars
Luminous stars
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We present spectroscopic and photometric observations of the emission-line star MWC 930 (V446 Sct) during its long-term optical brightening in 2006–2013. Based on our earlier data we suggested that the object has features found in Luminous Blue Variables (LBV), such as a high luminosity (∼3 105 L⊙), a low wind terminal velocity (∼140 km s−1), and a tendency to show strong brightness variations (∼1 mag over 20 years). For the last ∼7 years it has been exhibiting a continuous optical and near-IR brightening along with a change of the emission-line spectrum appearance and cooling of the star’s photosphere. We present the object’s -band light curve, analyze the spectral variations, and compare the observed properties with those of other recognized Galactic LBVs, such as AG Car and HR Car. Overall we conclude the MWC 930 is a bona fide Galactic LBV that is currently in the middle of an S Dor cycle
Fil: Miroshnichenko, A. S.. University of North Carolina at Greensboro. Department of Physics and Astronomy; Estados Unidos
Fil: Manset, N.. CFHT Corporation; Estados Unidos
Fil: Zharikov, S. V.. Universidad Nacional Autónoma de México; México
Fil: Zsargó, J.. Instituto Politécnico Nacional. Escuela Superior de Física y Matemáticas. Departamento de Fisica; México
Fil: Juárez Jiménez, J. A.. Instituto Politécnico Nacional. Escuela Superior de Física y Matemáticas. Departamento de Fisica; México
Fil: Groh, J. H.. Geneva University. Geneva Observatory; Suiza
Fil: Levato, Orlando Hugo. Consejo Nacional de Investigaciones Cienti­ficas y Tecnicas. Centro Cientifico Tecnologico San Juan. Instituto de Ciencias Astronomicas de la Tierra y del Espacio; Argentina
Fil: Grosso, Monica Gladys. Consejo Nacional de Investigaciones Cienti­ficas y Tecnicas. Centro Cientifico Tecnologico San Juan. Instituto de Ciencias Astronomicas de la Tierra y del Espacio; Argentina
Fil: Rudy, R. J.. The Aerospace Corporation; Estados Unidos
Fil: Laag, E. A.. The Aerospace Corporation; Estados Unidos
Fil: Crawford, K. B.. The Aerospace Corporation; Estados Unidos
Fil: Puetter, R. C.. University of California at San Diego. Center for Astrophysics and Space Science; Estados Unidos
Fil: Reichart, D. E.. University of North Carolina. Department of Physics and Astronomy; Estados Unidos
Fil: Ivarsen, K. M.. University of North Carolina. Department of Physics and Astronomy; Estados Unidos
Fil: Haislip, J. B.. University of North Carolina. Department of Physics and Astronomy; Estados Unidos
Fil: Nysewander, M. C.. University of North Carolina. Department of Physics and Astronomy; Estados Unidos
Fil: LaCluyze, A. P.. University of North Carolina. Department of Physics and Astronomy; Estados Unidos
description We present spectroscopic and photometric observations of the emission-line star MWC 930 (V446 Sct) during its long-term optical brightening in 2006–2013. Based on our earlier data we suggested that the object has features found in Luminous Blue Variables (LBV), such as a high luminosity (∼3 105 L⊙), a low wind terminal velocity (∼140 km s−1), and a tendency to show strong brightness variations (∼1 mag over 20 years). For the last ∼7 years it has been exhibiting a continuous optical and near-IR brightening along with a change of the emission-line spectrum appearance and cooling of the star’s photosphere. We present the object’s -band light curve, analyze the spectral variations, and compare the observed properties with those of other recognized Galactic LBVs, such as AG Car and HR Car. Overall we conclude the MWC 930 is a bona fide Galactic LBV that is currently in the middle of an S Dor cycle
publishDate 2014
dc.date.none.fl_str_mv 2014-01
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
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://hdl.handle.net/11336/4974
Miroshnichenko, A. S.; Manset, N.; Zharikov, S. V.; Zsargó, J.; Juárez Jiménez, J. A.; et al.; Confirmation of the Luminous Blue Variable Status of MWC 930; Hindawi Publishing Corporation; Advances in Astronomy; 2014; 1-2014; 1-9
1687-7969
url http://hdl.handle.net/11336/4974
identifier_str_mv Miroshnichenko, A. S.; Manset, N.; Zharikov, S. V.; Zsargó, J.; Juárez Jiménez, J. A.; et al.; Confirmation of the Luminous Blue Variable Status of MWC 930; Hindawi Publishing Corporation; Advances in Astronomy; 2014; 1-2014; 1-9
1687-7969
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.hindawi.com/journals/aa/2014/130378/abs/
info:eu-repo/semantics/altIdentifier/doi/10.1155/2014/130378
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Hindawi Publishing Corporation
publisher.none.fl_str_mv Hindawi Publishing Corporation
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1846082659366731776
score 13.22299

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