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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/211957
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oai:ri.conicet.gov.ar:11336/211957 |
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CONICET Digital (CONICET) |
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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 Técnicas2025-09-29T09:33:28Zoai: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:34982025-09-29 09:33:29.13CONICET 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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1844613028721459200 |
score |
13.070432 |