Artículo
Abstract:
As part of an ongoing project to study how reliable are the chromospheric models constructed semi-empirically 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 Ha 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.
Registro:
| Documento: | Artículo |
| Título: | Building reliable models of M dwarf chromospheres: The spectral diagnostics |
| Autor: | Mauas, P.J.D. |
| Filiación: | Inst. Astronomia y Fis. del Espacio, Casilla de Correo 67, Sucursal 28, 1428 Buenos Aires, Argentina |
| Palabras clave: | Stars: atmospheres; Stars: chromospheres; Stars: late-type |
| Año: | 2000 |
| Volumen: | 539 |
| Número: | 2 PART 1 |
| Página de inicio: | 858 |
| Página de fin: | 864 |
| Título revista: | Astrophysical Journal |
| Título revista abreviado: | Astrophys. J. |
| ISSN: | 0004637X |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0004637X_v539_n2PART1_p858_Mauas |
Referencias:
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Citas:
---------- APA ----------
(2000) . Building reliable models of M dwarf chromospheres: The spectral diagnostics. Astrophysical Journal, 539(2 PART 1), 858-864.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0004637X_v539_n2PART1_p858_Mauas [ ]
---------- CHICAGO ----------
Mauas, P.J.D. "Building reliable models of M dwarf chromospheres: The spectral diagnostics" . Astrophysical Journal 539, no. 2 PART 1 (2000) : 858-864.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0004637X_v539_n2PART1_p858_Mauas [ ]
---------- MLA ----------
Mauas, P.J.D. "Building reliable models of M dwarf chromospheres: The spectral diagnostics" . Astrophysical Journal, vol. 539, no. 2 PART 1, 2000, pp. 858-864.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0004637X_v539_n2PART1_p858_Mauas [ ]
---------- VANCOUVER ----------
Mauas, P.J.D. Building reliable models of M dwarf chromospheres: The spectral diagnostics. Astrophys. J. 2000;539(2 PART 1):858-864.Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0004637X_v539_n2PART1_p858_Mauas [ ]
