FUSE observations towards the pole-on Be star HR 5223

Autores
Frémat, Y.; Zorec, J.; Hubert, A. M.; Cidale, Lydia Sonia; Rohrmann, Rene Daniel; Desert, J. M.; Ferlet, R.; Vidal Madjar, A.
Año de publicación
2002
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
New spectra have been obtained for the pole-on Be star HR 5223 (HD 120991) using the Far Ultraviolet Satellite Explorer (FUSE). We give a complete description of the far-UV spectral range (920 to 1180 Å). The spectra are affected by strong blends with interstellar lines and molecular bands that also significantly lower the energy distribution of the star. We produce a synthetic spectrum of the interstellar medium (ISM) to determine the column densities of several elements (H2, H I, N I, O I ...) seen towards HR 5223 and to disentangle the components due to the ISM, the photosphere and/or to the circumstellar envelope. The line identification list is available at the CDS. Using the obtained column densities, we determine the reddening of the star due to the ISM only and locate the star relative to the nearby IS clouds. The fit of the dereddened UV flux distribution with models that account for the gravitational darkening due to the stellar fast rotation allowed us to estimate the stellar fundamental parameters (Teff} = 22 000 K; log g = 3.7) and its distance (d = 834+/- 20 pc). The distance obtained, which has to be considered as the most accurate available at the moment, is in agreement with the characteristics of the ISM matter distribution that affects the observed spectrum of the star and with the detecting limits of the HIPPARCOS satellite. Table ef{tab:lilvcen} is only available in electronic form at http://www.edpsciences.org
Fil: Frémat, Y.. Observatoire de París ; Francia
Fil: Zorec, J.. Institut d’Astrophysique de Paris; Francia
Fil: Hubert, A. M.. Observatoire de Paris ; Francia
Fil: Cidale, Lydia Sonia. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina
Fil: Rohrmann, Rene Daniel. Universidad Nacional de Córdoba; Argentina
Fil: Desert, J. M.. Institut d’Astrophysique de Paris; Francia
Fil: Ferlet, R.. Institut d’Astrophysique de Paris; Francia
Fil: Vidal Madjar, A.. Institut d’Astrophysique de Paris; Francia
Materia
Stars
Emission line
Rotation
HD 120991 (estrella)
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:11336/37038
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/37038
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling FUSE observations towards the pole-on Be star HR 5223Frémat, Y.Zorec, J.Hubert, A. M.Cidale, Lydia SoniaRohrmann, Rene DanielDesert, J. M.Ferlet, R.Vidal Madjar, A.StarsEmission lineRotationHD 120991 (estrella)https://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1New spectra have been obtained for the pole-on Be star HR 5223 (HD 120991) using the Far Ultraviolet Satellite Explorer (FUSE). We give a complete description of the far-UV spectral range (920 to 1180 Å). The spectra are affected by strong blends with interstellar lines and molecular bands that also significantly lower the energy distribution of the star. We produce a synthetic spectrum of the interstellar medium (ISM) to determine the column densities of several elements (H<sub>2</sub>, H I, N I, O I ...) seen towards HR 5223 and to disentangle the components due to the ISM, the photosphere and/or to the circumstellar envelope. The line identification list is available at the CDS. Using the obtained column densities, we determine the reddening of the star due to the ISM only and locate the star relative to the nearby IS clouds. The fit of the dereddened UV flux distribution with models that account for the gravitational darkening due to the stellar fast rotation allowed us to estimate the stellar fundamental parameters (T<sub>eff</sub>} = 22 000 K; log g = 3.7) and its distance (d = 834+/- 20 pc). The distance obtained, which has to be considered as the most accurate available at the moment, is in agreement with the characteristics of the ISM matter distribution that affects the observed spectrum of the star and with the detecting limits of the HIPPARCOS satellite. Table ef{tab:lilvcen} is only available in electronic form at http://www.edpsciences.orgFil: Frémat, Y.. Observatoire de París ; FranciaFil: Zorec, J.. Institut d’Astrophysique de Paris; FranciaFil: Hubert, A. M.. Observatoire de Paris ; FranciaFil: Cidale, Lydia Sonia. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; ArgentinaFil: Rohrmann, Rene Daniel. Universidad Nacional de Córdoba; ArgentinaFil: Desert, J. M.. Institut d’Astrophysique de Paris; FranciaFil: Ferlet, R.. Institut d’Astrophysique de Paris; FranciaFil: Vidal Madjar, A.. Institut d’Astrophysique de Paris; FranciaEDP Sciences2002-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/37038Frémat, Y.; Zorec, J.; Hubert, A. M.; Cidale, Lydia Sonia; Rohrmann, Rene Daniel; et al.; FUSE observations towards the pole-on Be star HR 5223; EDP Sciences; Astronomy and Astrophysics; 385; 4-2002; 986-9940004-6361CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://adsabs.harvard.edu/abs/2002A%26A...385..986Finfo:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361:20020186info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:24:38Zoai:ri.conicet.gov.ar:11336/37038instacron: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 10:24:39.185CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv FUSE observations towards the pole-on Be star HR 5223
title FUSE observations towards the pole-on Be star HR 5223
spellingShingle FUSE observations towards the pole-on Be star HR 5223
Frémat, Y.
Stars
Emission line
Rotation
HD 120991 (estrella)
title_short FUSE observations towards the pole-on Be star HR 5223
title_full FUSE observations towards the pole-on Be star HR 5223
title_fullStr FUSE observations towards the pole-on Be star HR 5223
title_full_unstemmed FUSE observations towards the pole-on Be star HR 5223
title_sort FUSE observations towards the pole-on Be star HR 5223
dc.creator.none.fl_str_mv Frémat, Y.
Zorec, J.
Hubert, A. M.
Cidale, Lydia Sonia
Rohrmann, Rene Daniel
Desert, J. M.
Ferlet, R.
Vidal Madjar, A.
author Frémat, Y.
author_facet Frémat, Y.
Zorec, J.
Hubert, A. M.
Cidale, Lydia Sonia
Rohrmann, Rene Daniel
Desert, J. M.
Ferlet, R.
Vidal Madjar, A.
author_role author
author2 Zorec, J.
Hubert, A. M.
Cidale, Lydia Sonia
Rohrmann, Rene Daniel
Desert, J. M.
Ferlet, R.
Vidal Madjar, A.
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Stars
Emission line
Rotation
HD 120991 (estrella)
topic Stars
Emission line
Rotation
HD 120991 (estrella)
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv New spectra have been obtained for the pole-on Be star HR 5223 (HD 120991) using the Far Ultraviolet Satellite Explorer (FUSE). We give a complete description of the far-UV spectral range (920 to 1180 Å). The spectra are affected by strong blends with interstellar lines and molecular bands that also significantly lower the energy distribution of the star. We produce a synthetic spectrum of the interstellar medium (ISM) to determine the column densities of several elements (H<sub>2</sub>, H I, N I, O I ...) seen towards HR 5223 and to disentangle the components due to the ISM, the photosphere and/or to the circumstellar envelope. The line identification list is available at the CDS. Using the obtained column densities, we determine the reddening of the star due to the ISM only and locate the star relative to the nearby IS clouds. The fit of the dereddened UV flux distribution with models that account for the gravitational darkening due to the stellar fast rotation allowed us to estimate the stellar fundamental parameters (T<sub>eff</sub>} = 22 000 K; log g = 3.7) and its distance (d = 834+/- 20 pc). The distance obtained, which has to be considered as the most accurate available at the moment, is in agreement with the characteristics of the ISM matter distribution that affects the observed spectrum of the star and with the detecting limits of the HIPPARCOS satellite. Table ef{tab:lilvcen} is only available in electronic form at http://www.edpsciences.org
Fil: Frémat, Y.. Observatoire de París ; Francia
Fil: Zorec, J.. Institut d’Astrophysique de Paris; Francia
Fil: Hubert, A. M.. Observatoire de Paris ; Francia
Fil: Cidale, Lydia Sonia. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina
Fil: Rohrmann, Rene Daniel. Universidad Nacional de Córdoba; Argentina
Fil: Desert, J. M.. Institut d’Astrophysique de Paris; Francia
Fil: Ferlet, R.. Institut d’Astrophysique de Paris; Francia
Fil: Vidal Madjar, A.. Institut d’Astrophysique de Paris; Francia
description New spectra have been obtained for the pole-on Be star HR 5223 (HD 120991) using the Far Ultraviolet Satellite Explorer (FUSE). We give a complete description of the far-UV spectral range (920 to 1180 Å). The spectra are affected by strong blends with interstellar lines and molecular bands that also significantly lower the energy distribution of the star. We produce a synthetic spectrum of the interstellar medium (ISM) to determine the column densities of several elements (H<sub>2</sub>, H I, N I, O I ...) seen towards HR 5223 and to disentangle the components due to the ISM, the photosphere and/or to the circumstellar envelope. The line identification list is available at the CDS. Using the obtained column densities, we determine the reddening of the star due to the ISM only and locate the star relative to the nearby IS clouds. The fit of the dereddened UV flux distribution with models that account for the gravitational darkening due to the stellar fast rotation allowed us to estimate the stellar fundamental parameters (T<sub>eff</sub>} = 22 000 K; log g = 3.7) and its distance (d = 834+/- 20 pc). The distance obtained, which has to be considered as the most accurate available at the moment, is in agreement with the characteristics of the ISM matter distribution that affects the observed spectrum of the star and with the detecting limits of the HIPPARCOS satellite. Table ef{tab:lilvcen} is only available in electronic form at http://www.edpsciences.org
publishDate 2002
dc.date.none.fl_str_mv 2002-04
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/11336/37038
Frémat, Y.; Zorec, J.; Hubert, A. M.; Cidale, Lydia Sonia; Rohrmann, Rene Daniel; et al.; FUSE observations towards the pole-on Be star HR 5223; EDP Sciences; Astronomy and Astrophysics; 385; 4-2002; 986-994
0004-6361
CONICET Digital
CONICET
url http://hdl.handle.net/11336/37038
identifier_str_mv Frémat, Y.; Zorec, J.; Hubert, A. M.; Cidale, Lydia Sonia; Rohrmann, Rene Daniel; et al.; FUSE observations towards the pole-on Be star HR 5223; EDP Sciences; Astronomy and Astrophysics; 385; 4-2002; 986-994
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://adsabs.harvard.edu/abs/2002A%26A...385..986F
info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361:20020186
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
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 13.070432

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