Building Reliable Models of M Dwarf Chromospheres: The Spectral Diagnostics
- Autores
- Mauas, Pablo Jacobo David
- Año de publicación
- 2000
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- As part of an ongoing project to study how reliable are the chromospheric models constructed semiempirically to fit the chromospheric spectrum of cold stars, in this paper we study how changes in the assumed chromospheric structure of dM and dMe stars affect the emitted spectrum. In this way, we study if a given set of features can wholly determine the atmospheric structure, how large are the indeterminations in the atmospheric parameters deduced, and to what extent the atmospheric model computed can be considered unique. We find that the profiles of the Ca II K line or the Na D lines can be used to determine the structure of the Tmin region and that the Hα profile can provide good information on the structure of the chromosphere. The Lyα flux, in turn, can be used to constrain the position of the transition region.
Fil: Mauas, Pablo Jacobo David. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina - Materia
- Astrofisica
- Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
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- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/98800
Ver los metadatos del registro completo
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Building Reliable Models of M Dwarf Chromospheres: The Spectral DiagnosticsMauas, Pablo Jacobo DavidAstrofisicahttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1As part of an ongoing project to study how reliable are the chromospheric models constructed semiempirically to fit the chromospheric spectrum of cold stars, in this paper we study how changes in the assumed chromospheric structure of dM and dMe stars affect the emitted spectrum. In this way, we study if a given set of features can wholly determine the atmospheric structure, how large are the indeterminations in the atmospheric parameters deduced, and to what extent the atmospheric model computed can be considered unique. We find that the profiles of the Ca II K line or the Na D lines can be used to determine the structure of the Tmin region and that the Hα profile can provide good information on the structure of the chromosphere. The Lyα flux, in turn, can be used to constrain the position of the transition region.Fil: Mauas, Pablo Jacobo David. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; ArgentinaIOP Publishing2000-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/98800Mauas, Pablo Jacobo David; Building Reliable Models of M Dwarf Chromospheres: The Spectral Diagnostics; IOP Publishing; Astrophysical Journal; 539; 2; 8-2000; 858-8640004-637XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.1086/309271info:eu-repo/semantics/altIdentifier/doi/10.1086/309271info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:13:46Zoai:ri.conicet.gov.ar:11336/98800instacron: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 10:13:46.848CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
| dc.title.none.fl_str_mv |
Building Reliable Models of M Dwarf Chromospheres: The Spectral Diagnostics |
| title |
Building Reliable Models of M Dwarf Chromospheres: The Spectral Diagnostics |
| spellingShingle |
Building Reliable Models of M Dwarf Chromospheres: The Spectral Diagnostics Mauas, Pablo Jacobo David Astrofisica |
| title_short |
Building Reliable Models of M Dwarf Chromospheres: The Spectral Diagnostics |
| title_full |
Building Reliable Models of M Dwarf Chromospheres: The Spectral Diagnostics |
| title_fullStr |
Building Reliable Models of M Dwarf Chromospheres: The Spectral Diagnostics |
| title_full_unstemmed |
Building Reliable Models of M Dwarf Chromospheres: The Spectral Diagnostics |
| title_sort |
Building Reliable Models of M Dwarf Chromospheres: The Spectral Diagnostics |
| dc.creator.none.fl_str_mv |
Mauas, Pablo Jacobo David |
| author |
Mauas, Pablo Jacobo David |
| author_facet |
Mauas, Pablo Jacobo David |
| author_role |
author |
| dc.subject.none.fl_str_mv |
Astrofisica |
| topic |
Astrofisica |
| purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
| dc.description.none.fl_txt_mv |
As part of an ongoing project to study how reliable are the chromospheric models constructed semiempirically to fit the chromospheric spectrum of cold stars, in this paper we study how changes in the assumed chromospheric structure of dM and dMe stars affect the emitted spectrum. In this way, we study if a given set of features can wholly determine the atmospheric structure, how large are the indeterminations in the atmospheric parameters deduced, and to what extent the atmospheric model computed can be considered unique. We find that the profiles of the Ca II K line or the Na D lines can be used to determine the structure of the Tmin region and that the Hα profile can provide good information on the structure of the chromosphere. The Lyα flux, in turn, can be used to constrain the position of the transition region. Fil: Mauas, Pablo Jacobo David. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina |
| description |
As part of an ongoing project to study how reliable are the chromospheric models constructed semiempirically to fit the chromospheric spectrum of cold stars, in this paper we study how changes in the assumed chromospheric structure of dM and dMe stars affect the emitted spectrum. In this way, we study if a given set of features can wholly determine the atmospheric structure, how large are the indeterminations in the atmospheric parameters deduced, and to what extent the atmospheric model computed can be considered unique. We find that the profiles of the Ca II K line or the Na D lines can be used to determine the structure of the Tmin region and that the Hα profile can provide good information on the structure of the chromosphere. The Lyα flux, in turn, can be used to constrain the position of the transition region. |
| publishDate |
2000 |
| dc.date.none.fl_str_mv |
2000-08 |
| 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 |
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article |
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publishedVersion |
| dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/98800 Mauas, Pablo Jacobo David; Building Reliable Models of M Dwarf Chromospheres: The Spectral Diagnostics; IOP Publishing; Astrophysical Journal; 539; 2; 8-2000; 858-864 0004-637X CONICET Digital CONICET |
| url |
http://hdl.handle.net/11336/98800 |
| identifier_str_mv |
Mauas, Pablo Jacobo David; Building Reliable Models of M Dwarf Chromospheres: The Spectral Diagnostics; IOP Publishing; Astrophysical Journal; 539; 2; 8-2000; 858-864 0004-637X CONICET Digital CONICET |
| dc.language.none.fl_str_mv |
eng |
| language |
eng |
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info:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.1086/309271 info:eu-repo/semantics/altIdentifier/doi/10.1086/309271 |
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info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
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openAccess |
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IOP Publishing |
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IOP Publishing |
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CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
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