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 CientiÂficas 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 CientiÂficas 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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/4974
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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 CientiÂficas 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 CientiÂficas 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 Técnicas2025-09-29T09:35:34Zoai: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:34982025-09-29 09:35:35.146CONICET 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 CientiÂficas 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 CientiÂficas 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 |
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1844613109154578432 |
score |
13.070432 |