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http://inaoe.repositorioinstitucional.mx/jspui/handle/1009/2255| Mg II h + k Flux—Rotational Period Correlation for G-type Stars | |
| JOSE MANUEL OLMEDO AGUILAR MIGUEL Y ROSA MARIA CHAVEZ DAGOSTINO Emanuele Bertone Víctor Hugo de la Luz Rodríguez | |
| Acceso Abierto | |
| Atribución-NoComercial-SinDerivadas | |
| Correlation Emission lines Measured rotational periods Ca II H + K | |
| We present an analysis of the correlation between the mid-UV Mg II h and k emission lines and measured rotational periods of G-type stars. Based on IUE and HST high resolution spectra of a sample of 36 stars, we derive an exponential function that best represents the correlation. We find that the variation of the Mg II h + k fluxes is about a factor of 2.5 larger than that of Ca II H + K, indicating that the UV features are more sensitive to the decline of Prot. The comparison of UV-predicted rotational periods with those derived from empirical Prot. — Ca II H + K flux calibrations are consistent, with some scatter at large periods, where the emissions are less intense. We present newly derived rotational periods for 15 G-type stars. | |
| Publications of the astronomical society of the pacific | |
| 01-12-2013 | |
| Artículo | |
| Inglés | |
| Estudiantes Investigadores Público en general | |
| Olmedo, Manuel., et al., (2013). Mg II h + k Flux—Rotational Period Correlation for G-type Stars, Publications of the astronomical society of the pacific, Vol. 125(934):1436-1442 | |
| ASTRONOMÍA Y ASTROFÍSICA | |
| Versión aceptada | |
| acceptedVersion - Versión aceptada | |
| Aparece en las colecciones: | Artículos de Astrofísica |
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| Fichero | Tamaño | Formato | |
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| 36. Mg II h + k Flux - Rotational Period Correlation for G-type Stars.pdf | 304.39 kB | Adobe PDF | Visualizar/Abrir |