Properties of galactic B[e] supergiants: III. MWC 300

Autores
Miroshnichenko, A. S.; Levato, Orlando Hugo; Bjorkman, K. S.; Grosso, Monica Gladys; Manset, N.; Men'shchikov, A. B.; Rudy, R. J.; Lynch, D. K.; Mazuk, S.; Venturini, C. C.; Puetter, R. C.; Perry, R. B.
Año de publicación
2004
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We present the results of optical and near-IR spectroscopic and mid-IR imaging observations of the emission-line star MWC 300. Its properties and evolutionary state are still under debate (a B[e] supergiant or a Herbig Be star). For the first time we detected radial velocity variations of the photospheric lines and found a correlation between them and those of the He I λ5876 Å line. Most of the pure emission lines had stable positions for nearly 20 years. New estimates of the object's luminosity (log L/L ⊙ = 5.1 ± 0.1), distance (D = 1.8 ± 0.2kpc), and systemic velocity (+26 ± 2 km s-1) were derived. We found that both the circumstellar extinction in the disk-like dusty envelope and the interstellar extinction play a significant role in the attenuation of the stellar brightness. Our 2D modeling of the observed spectral energy distribution in the wavelength range from 0.3 μm to 1.3 mm suggests that the star is viewed through a gaseous-and-dusty flared disk with an opening angle of 30°, an inclination angle of 10°, an equatorial optical depth τv = 3.0, and a total mass of 0.08 M⊙. We argue that MWC 300 is most likely a binary system, because of the similarities of its observed parameters with those of recognized B[e] binaries.
Fil: Miroshnichenko, A. S.. Pulkovo Observatory Of The Russian Academy Of Sciences; Polonia. University of Toledo; Estados Unidos
Fil: Levato, Orlando Hugo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Complejo Astronómico "El Leoncito". Universidad Nacional de Córdoba. Complejo Astronómico "El Leoncito". Universidad Nacional de la Plata. Complejo Astronómico "El Leoncito". Universidad Nacional de San Juan. Complejo Astronómico "El Leoncito"; Argentina
Fil: Bjorkman, K. S.. University of Toledo; Estados Unidos
Fil: Grosso, Monica Gladys. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Complejo Astronómico "El Leoncito". Universidad Nacional de Córdoba. Complejo Astronómico "El Leoncito". Universidad Nacional de la Plata. Complejo Astronómico "El Leoncito". Universidad Nacional de San Juan. Complejo Astronómico "El Leoncito"; Argentina
Fil: Manset, N.. Canada France Hawaii Telescope; Estados Unidos
Fil: Men'shchikov, A. B.. Max Planck Institute For Radio Astronomy; Alemania. Saint Mary's University; Canadá
Fil: Rudy, R. J.. Aerospace Corporation; Estados Unidos
Fil: Lynch, D. K.. Aerospace Corporation; Estados Unidos
Fil: Mazuk, S.. Aerospace Corporation; Estados Unidos
Fil: Venturini, C. C.. Aerospace Corporation; Estados Unidos
Fil: Puetter, R. C.. University of California; Estados Unidos
Fil: Perry, R. B.. National Aeronautics and Space Administration; Estados Unidos
Materia
CIRCUMSTELLAR MATTER RADIATIVE TRANSFER
STARS: EMISSION-LINE, BE
STARS: INDIVIDUAL: MWC 300
TECHNIQUES: SPECTROSCOPIC
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/211957
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/211957
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Properties of galactic B[e] supergiants: III. MWC 300Miroshnichenko, A. S.Levato, Orlando HugoBjorkman, K. S.Grosso, Monica GladysManset, N.Men'shchikov, A. B.Rudy, R. J.Lynch, D. K.Mazuk, S.Venturini, C. C.Puetter, R. C.Perry, R. B.CIRCUMSTELLAR MATTER RADIATIVE TRANSFERSTARS: EMISSION-LINE, BESTARS: INDIVIDUAL: MWC 300TECHNIQUES: SPECTROSCOPIChttps://purl.org/becyt/ford/1.7https://purl.org/becyt/ford/1We present the results of optical and near-IR spectroscopic and mid-IR imaging observations of the emission-line star MWC 300. Its properties and evolutionary state are still under debate (a B[e] supergiant or a Herbig Be star). For the first time we detected radial velocity variations of the photospheric lines and found a correlation between them and those of the He I λ5876 Å line. Most of the pure emission lines had stable positions for nearly 20 years. New estimates of the object's luminosity (log L/L ⊙ = 5.1 ± 0.1), distance (D = 1.8 ± 0.2kpc), and systemic velocity (+26 ± 2 km s-1) were derived. We found that both the circumstellar extinction in the disk-like dusty envelope and the interstellar extinction play a significant role in the attenuation of the stellar brightness. Our 2D modeling of the observed spectral energy distribution in the wavelength range from 0.3 μm to 1.3 mm suggests that the star is viewed through a gaseous-and-dusty flared disk with an opening angle of 30°, an inclination angle of 10°, an equatorial optical depth τv = 3.0, and a total mass of 0.08 M⊙. We argue that MWC 300 is most likely a binary system, because of the similarities of its observed parameters with those of recognized B[e] binaries.Fil: Miroshnichenko, A. S.. Pulkovo Observatory Of The Russian Academy Of Sciences; Polonia. University of Toledo; Estados UnidosFil: Levato, Orlando Hugo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Complejo Astronómico "El Leoncito". Universidad Nacional de Córdoba. Complejo Astronómico "El Leoncito". Universidad Nacional de la Plata. Complejo Astronómico "El Leoncito". Universidad Nacional de San Juan. Complejo Astronómico "El Leoncito"; ArgentinaFil: Bjorkman, K. S.. University of Toledo; Estados UnidosFil: Grosso, Monica Gladys. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Complejo Astronómico "El Leoncito". Universidad Nacional de Córdoba. Complejo Astronómico "El Leoncito". Universidad Nacional de la Plata. Complejo Astronómico "El Leoncito". Universidad Nacional de San Juan. Complejo Astronómico "El Leoncito"; ArgentinaFil: Manset, N.. Canada France Hawaii Telescope; Estados UnidosFil: Men'shchikov, A. B.. Max Planck Institute For Radio Astronomy; Alemania. Saint Mary's University; CanadáFil: Rudy, R. J.. Aerospace Corporation; Estados UnidosFil: Lynch, D. K.. Aerospace Corporation; Estados UnidosFil: Mazuk, S.. Aerospace Corporation; Estados UnidosFil: Venturini, C. C.. Aerospace Corporation; Estados UnidosFil: Puetter, R. C.. University of California; Estados UnidosFil: Perry, R. B.. National Aeronautics and Space Administration; Estados UnidosEDP Sciences2004-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/211957Miroshnichenko, A. S.; Levato, Orlando Hugo; Bjorkman, K. S.; Grosso, Monica Gladys; Manset, N.; et al.; Properties of galactic B[e] supergiants: III. MWC 300; EDP Sciences; Astronomy and Astrophysics; 417; 2; 4-2004; 731-7430004-6361CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.aanda.org/articles/aa/pdf/2004/14/aa0181.pdfinfo:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361:20034181info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:01:29Zoai:ri.conicet.gov.ar:11336/211957instacron: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:34982025-10-22 11:01:30.031CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Properties of galactic B[e] supergiants: III. MWC 300
title Properties of galactic B[e] supergiants: III. MWC 300
spellingShingle Properties of galactic B[e] supergiants: III. MWC 300
Miroshnichenko, A. S.
CIRCUMSTELLAR MATTER RADIATIVE TRANSFER
STARS: EMISSION-LINE, BE
STARS: INDIVIDUAL: MWC 300
TECHNIQUES: SPECTROSCOPIC
title_short Properties of galactic B[e] supergiants: III. MWC 300
title_full Properties of galactic B[e] supergiants: III. MWC 300
title_fullStr Properties of galactic B[e] supergiants: III. MWC 300
title_full_unstemmed Properties of galactic B[e] supergiants: III. MWC 300
title_sort Properties of galactic B[e] supergiants: III. MWC 300
dc.creator.none.fl_str_mv Miroshnichenko, A. S.
Levato, Orlando Hugo
Bjorkman, K. S.
Grosso, Monica Gladys
Manset, N.
Men'shchikov, A. B.
Rudy, R. J.
Lynch, D. K.
Mazuk, S.
Venturini, C. C.
Puetter, R. C.
Perry, R. B.
author Miroshnichenko, A. S.
author_facet Miroshnichenko, A. S.
Levato, Orlando Hugo
Bjorkman, K. S.
Grosso, Monica Gladys
Manset, N.
Men'shchikov, A. B.
Rudy, R. J.
Lynch, D. K.
Mazuk, S.
Venturini, C. C.
Puetter, R. C.
Perry, R. B.
author_role author
author2 Levato, Orlando Hugo
Bjorkman, K. S.
Grosso, Monica Gladys
Manset, N.
Men'shchikov, A. B.
Rudy, R. J.
Lynch, D. K.
Mazuk, S.
Venturini, C. C.
Puetter, R. C.
Perry, R. B.
author2_role author
author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv CIRCUMSTELLAR MATTER RADIATIVE TRANSFER
STARS: EMISSION-LINE, BE
STARS: INDIVIDUAL: MWC 300
TECHNIQUES: SPECTROSCOPIC
topic CIRCUMSTELLAR MATTER RADIATIVE TRANSFER
STARS: EMISSION-LINE, BE
STARS: INDIVIDUAL: MWC 300
TECHNIQUES: SPECTROSCOPIC
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.7
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We present the results of optical and near-IR spectroscopic and mid-IR imaging observations of the emission-line star MWC 300. Its properties and evolutionary state are still under debate (a B[e] supergiant or a Herbig Be star). For the first time we detected radial velocity variations of the photospheric lines and found a correlation between them and those of the He I λ5876 Å line. Most of the pure emission lines had stable positions for nearly 20 years. New estimates of the object's luminosity (log L/L ⊙ = 5.1 ± 0.1), distance (D = 1.8 ± 0.2kpc), and systemic velocity (+26 ± 2 km s-1) were derived. We found that both the circumstellar extinction in the disk-like dusty envelope and the interstellar extinction play a significant role in the attenuation of the stellar brightness. Our 2D modeling of the observed spectral energy distribution in the wavelength range from 0.3 μm to 1.3 mm suggests that the star is viewed through a gaseous-and-dusty flared disk with an opening angle of 30°, an inclination angle of 10°, an equatorial optical depth τv = 3.0, and a total mass of 0.08 M⊙. We argue that MWC 300 is most likely a binary system, because of the similarities of its observed parameters with those of recognized B[e] binaries.
Fil: Miroshnichenko, A. S.. Pulkovo Observatory Of The Russian Academy Of Sciences; Polonia. University of Toledo; Estados Unidos
Fil: Levato, Orlando Hugo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Complejo Astronómico "El Leoncito". Universidad Nacional de Córdoba. Complejo Astronómico "El Leoncito". Universidad Nacional de la Plata. Complejo Astronómico "El Leoncito". Universidad Nacional de San Juan. Complejo Astronómico "El Leoncito"; Argentina
Fil: Bjorkman, K. S.. University of Toledo; Estados Unidos
Fil: Grosso, Monica Gladys. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Complejo Astronómico "El Leoncito". Universidad Nacional de Córdoba. Complejo Astronómico "El Leoncito". Universidad Nacional de la Plata. Complejo Astronómico "El Leoncito". Universidad Nacional de San Juan. Complejo Astronómico "El Leoncito"; Argentina
Fil: Manset, N.. Canada France Hawaii Telescope; Estados Unidos
Fil: Men'shchikov, A. B.. Max Planck Institute For Radio Astronomy; Alemania. Saint Mary's University; Canadá
Fil: Rudy, R. J.. Aerospace Corporation; Estados Unidos
Fil: Lynch, D. K.. Aerospace Corporation; Estados Unidos
Fil: Mazuk, S.. Aerospace Corporation; Estados Unidos
Fil: Venturini, C. C.. Aerospace Corporation; Estados Unidos
Fil: Puetter, R. C.. University of California; Estados Unidos
Fil: Perry, R. B.. National Aeronautics and Space Administration; Estados Unidos
description We present the results of optical and near-IR spectroscopic and mid-IR imaging observations of the emission-line star MWC 300. Its properties and evolutionary state are still under debate (a B[e] supergiant or a Herbig Be star). For the first time we detected radial velocity variations of the photospheric lines and found a correlation between them and those of the He I λ5876 Å line. Most of the pure emission lines had stable positions for nearly 20 years. New estimates of the object's luminosity (log L/L ⊙ = 5.1 ± 0.1), distance (D = 1.8 ± 0.2kpc), and systemic velocity (+26 ± 2 km s-1) were derived. We found that both the circumstellar extinction in the disk-like dusty envelope and the interstellar extinction play a significant role in the attenuation of the stellar brightness. Our 2D modeling of the observed spectral energy distribution in the wavelength range from 0.3 μm to 1.3 mm suggests that the star is viewed through a gaseous-and-dusty flared disk with an opening angle of 30°, an inclination angle of 10°, an equatorial optical depth τv = 3.0, and a total mass of 0.08 M⊙. We argue that MWC 300 is most likely a binary system, because of the similarities of its observed parameters with those of recognized B[e] binaries.
publishDate 2004
dc.date.none.fl_str_mv 2004-04
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/11336/211957
Miroshnichenko, A. S.; Levato, Orlando Hugo; Bjorkman, K. S.; Grosso, Monica Gladys; Manset, N.; et al.; Properties of galactic B[e] supergiants: III. MWC 300; EDP Sciences; Astronomy and Astrophysics; 417; 2; 4-2004; 731-743
0004-6361
CONICET Digital
CONICET
url http://hdl.handle.net/11336/211957
identifier_str_mv Miroshnichenko, A. S.; Levato, Orlando Hugo; Bjorkman, K. S.; Grosso, Monica Gladys; Manset, N.; et al.; Properties of galactic B[e] supergiants: III. MWC 300; EDP Sciences; Astronomy and Astrophysics; 417; 2; 4-2004; 731-743
0004-6361
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.aanda.org/articles/aa/pdf/2004/14/aa0181.pdf
info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361:20034181
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv EDP Sciences
publisher.none.fl_str_mv EDP Sciences
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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score 12.982451

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