Dielectronic recombination of Mg II in stellar envelopes
- Autores
- Cruzado, Alicia; Di Rocco, Héctor Oscar; Ringuelet, Adela Emilia
- Año de publicación
- 1998
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The aim of the present paper is to discuss the significance, in the infrared continuum of Be stars, of the dielectronic recombination (DR) of Mg II atoms. To accomplish this, we hace calculated the emissitivity in the lines of Mg I atoms after the process of electron capture has taken place. In order to estimate its influence in the photospheric flux, we have considered the total energy emitted in all lines with λ1 ≤ λ ≤ λ2, where λ1 and λ2 define the wavelegth ranges of the Johnson system filters. We conclude that the DR of Mg II atoms does actually contribute significantly to the infrared excess observed in Be stars.
Facultad de Ciencias Astronómicas y Geofísicas - Materia
-
Ciencias Astronómicas
estrellas
atomic processes; emission line; Be stars
astrofísica - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-nd/4.0/
- Repositorio
.jpg)
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/2088
Ver los metadatos del registro completo
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Dielectronic recombination of Mg II in stellar envelopesCruzado, AliciaDi Rocco, Héctor OscarRinguelet, Adela EmiliaCiencias Astronómicasestrellasatomic processes; emission line; Be starsastrofísicaThe aim of the present paper is to discuss the significance, in the infrared continuum of Be stars, of the dielectronic recombination (DR) of Mg II atoms. To accomplish this, we hace calculated the emissitivity in the lines of Mg I atoms after the process of electron capture has taken place. In order to estimate its influence in the photospheric flux, we have considered the total energy emitted in all lines with λ<SUB>1</SUB> ≤ λ ≤ λ<SUB>2</SUB>, where λ<SUB>1</SUB> and λ<SUB>2</SUB> define the wavelegth ranges of the Johnson system filters. We conclude that the DR of Mg II atoms does actually contribute significantly to the infrared excess observed in Be stars.Facultad de Ciencias Astronómicas y Geofísicas1998info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf902-915http://sedici.unlp.edu.ar/handle/10915/2088enginfo:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1086/306004info:eu-repo/semantics/altIdentifier/issn/0004-637Xinfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/4.0/Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-22T16:30:18Zoai:sedici.unlp.edu.ar:10915/2088Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-22 16:30:18.957SEDICI (UNLP) - Universidad Nacional de La Platafalse |
| dc.title.none.fl_str_mv |
Dielectronic recombination of Mg II in stellar envelopes |
| title |
Dielectronic recombination of Mg II in stellar envelopes |
| spellingShingle |
Dielectronic recombination of Mg II in stellar envelopes Cruzado, Alicia Ciencias Astronómicas estrellas atomic processes; emission line; Be stars astrofísica |
| title_short |
Dielectronic recombination of Mg II in stellar envelopes |
| title_full |
Dielectronic recombination of Mg II in stellar envelopes |
| title_fullStr |
Dielectronic recombination of Mg II in stellar envelopes |
| title_full_unstemmed |
Dielectronic recombination of Mg II in stellar envelopes |
| title_sort |
Dielectronic recombination of Mg II in stellar envelopes |
| dc.creator.none.fl_str_mv |
Cruzado, Alicia Di Rocco, Héctor Oscar Ringuelet, Adela Emilia |
| author |
Cruzado, Alicia |
| author_facet |
Cruzado, Alicia Di Rocco, Héctor Oscar Ringuelet, Adela Emilia |
| author_role |
author |
| author2 |
Di Rocco, Héctor Oscar Ringuelet, Adela Emilia |
| author2_role |
author author |
| dc.subject.none.fl_str_mv |
Ciencias Astronómicas estrellas atomic processes; emission line; Be stars astrofísica |
| topic |
Ciencias Astronómicas estrellas atomic processes; emission line; Be stars astrofísica |
| dc.description.none.fl_txt_mv |
The aim of the present paper is to discuss the significance, in the infrared continuum of Be stars, of the dielectronic recombination (DR) of Mg II atoms. To accomplish this, we hace calculated the emissitivity in the lines of Mg I atoms after the process of electron capture has taken place. In order to estimate its influence in the photospheric flux, we have considered the total energy emitted in all lines with λ<SUB>1</SUB> ≤ λ ≤ λ<SUB>2</SUB>, where λ<SUB>1</SUB> and λ<SUB>2</SUB> define the wavelegth ranges of the Johnson system filters. We conclude that the DR of Mg II atoms does actually contribute significantly to the infrared excess observed in Be stars. Facultad de Ciencias Astronómicas y Geofísicas |
| description |
The aim of the present paper is to discuss the significance, in the infrared continuum of Be stars, of the dielectronic recombination (DR) of Mg II atoms. To accomplish this, we hace calculated the emissitivity in the lines of Mg I atoms after the process of electron capture has taken place. In order to estimate its influence in the photospheric flux, we have considered the total energy emitted in all lines with λ<SUB>1</SUB> ≤ λ ≤ λ<SUB>2</SUB>, where λ<SUB>1</SUB> and λ<SUB>2</SUB> define the wavelegth ranges of the Johnson system filters. We conclude that the DR of Mg II atoms does actually contribute significantly to the infrared excess observed in Be stars. |
| publishDate |
1998 |
| dc.date.none.fl_str_mv |
1998 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articulo 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://sedici.unlp.edu.ar/handle/10915/2088 |
| url |
http://sedici.unlp.edu.ar/handle/10915/2088 |
| dc.language.none.fl_str_mv |
eng |
| language |
eng |
| dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1086/306004 info:eu-repo/semantics/altIdentifier/issn/0004-637X |
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info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-nd/4.0/ Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) |
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openAccess |
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http://creativecommons.org/licenses/by-nc-nd/4.0/ Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) |
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