ICATE 21876
INSTITUTO DE CIENCIAS ASTRONOMICAS, DE LA TIERRA Y DEL ESPACIO
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Solar Radius and Limb Brightening Variability in the Submilimetric Range
Autor/es:
BALMACEDA, L. A. ;; VÁLIO, A.; SELHORST, C.
Lugar:
Mendoza
Reunión:
Simposio; IAU Symposium 286: Comparative Magnetic Minima: Characterizing Quiet Times in the Sun and Stars; 2011
Resumen:
We study the variation of the solar radius and the limb brightening at 212 and 405 GHz, during the recent extended minimum of cycle XXIII. For this, daily maps obtained with the Solar Submillimeter-wave Telescope (SST) operating at El Leoncito, Argentina, since 1999 are analyzed. In order to interpret the results, the estimated parameters are contrasted with a semi-empirical model of the solar atmosphere. A comparison with different indices of solar activity, such as sunspot number and solar irradiance, is also carried out.
