Artículo
Abstract:
Based on our large spectral database obtained at CASLEO Argentinian Observatory, we analyzed the relation between simultaneous measurements of Hα and Ca ii H+K fluxes. Although the correlation between both proxies is positive for the solar case, in 2007 our group found that while some stars exhibit correlations between Hα and the Ca ii lines, the slopes change from star to star, including cases where no correlation was found. To discern if this flux-flux relation depends on the level of activity of the star and if it is associated with the distribution of active regions in the stellar atmosphere, in this work we analyze the relation between Hα-Ca ii fluxes for the whole set of 44 G dwarf stars and individually for a subset of several solar-type stars of different level of activity. © 2012 International Astronomical Union.
Registro:
| Documento: | Artículo |
| Título: | A statistical analysis of Hα-Ca II relation for solar-type stars of different activity levels |
| Autor: | Buccino, A.P.; Vieytes, M.C.; Mauas, P.J.D.; Mandrini C.H.; Webb D.F. |
| Filiación: | Instituto de Astronomía y Física Del Espacio (IAFE), CC 67-Suc. 28, (C1428ZAA), Ciudad Autónoma de Bs. As., Argentina Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Bs. As., Ciudad Autónoma de Bs. As., Argentina |
| Palabras clave: | late-type; line: profiles; methods: statistical; stars: activity |
| Año: | 2011 |
| Volumen: | 7 |
| Número: | S286 |
| Página de inicio: | 324 |
| Página de fin: | 327 |
| DOI: | http://dx.doi.org/10.1017/S1743921312005030 |
| Título revista: | Proceedings of the International Astronomical Union |
| Título revista abreviado: | Proc. Int. Astron. Union |
| ISSN: | 17439213 |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_17439213_v7_nS286_p324_Buccino |
Referencias:
- Buccino, A.P., Díaz, R.F., Luoni, M.L., Abrevaya, X.C., Maas, P.J.D., (2011) AJ, 141, p. 34
- Cincunegui, C., Díaz, R.F., Mauas, P.J.D., (2007) A&A, 469, p. 309
- Cincunegui, C., Mauas, P.J.D., (2004) A&A, 414, p. 699
- Díaz, R.F., González, J.F., Cincunegui, C., Mauas, P.J.D., (2007) A&A, 474, p. 345
- Livingston, W., Wallace, L., White, O.R., Giampapa, M.S., (2007) ApJ, 657, p. 1137
- Meunier, N., Delfosse, X., (2009) A&A, 501, p. 1103
- Vieytes, M., Mauas, P., Cincunegui, C., (2005) A&A, 441, p. 701
Citas:
---------- APA ----------
Buccino, A.P., Vieytes, M.C., Mauas, P.J.D., Mandrini C.H. & Webb D.F. (2011) . A statistical analysis of Hα-Ca II relation for solar-type stars of different activity levels. Proceedings of the International Astronomical Union, 7(S286), 324-327.http://dx.doi.org/10.1017/S1743921312005030
---------- CHICAGO ----------
Buccino, A.P., Vieytes, M.C., Mauas, P.J.D., Mandrini C.H., Webb D.F. "A statistical analysis of Hα-Ca II relation for solar-type stars of different activity levels" . Proceedings of the International Astronomical Union 7, no. S286 (2011) : 324-327.http://dx.doi.org/10.1017/S1743921312005030
---------- MLA ----------
Buccino, A.P., Vieytes, M.C., Mauas, P.J.D., Mandrini C.H., Webb D.F. "A statistical analysis of Hα-Ca II relation for solar-type stars of different activity levels" . Proceedings of the International Astronomical Union, vol. 7, no. S286, 2011, pp. 324-327.http://dx.doi.org/10.1017/S1743921312005030
---------- VANCOUVER ----------
Buccino, A.P., Vieytes, M.C., Mauas, P.J.D., Mandrini C.H., Webb D.F. A statistical analysis of Hα-Ca II relation for solar-type stars of different activity levels. Proc. Int. Astron. Union. 2011;7(S286):324-327.http://dx.doi.org/10.1017/S1743921312005030
