El decaimiento de las regiones activas en en Sol muestran dos fases, a saber: una fase linieal de pérdida de flujo local, y otra fase plana. A partir de los datos del instrumento SoHO/MDI hemos estudiado la evolución de tres regiones activas, cuantificando por primera vez estos ritmos de decaimiento, así como las cancdelacioones y pérdidas de flujo

FRIDA (inFRared Imager and Dissector for the Adaptive optics system of the GTC) will be a NIR (1-2.5 μm) imager and Integral Field Unit spectrograph to operate with the Adaptive Optics system of the 10.4 m GTC telescope. FRIDA will offer broad and narrow band diffraction-limited imaging and integral field spectroscopy at low, intermediate and high

Available from the Minor Planet Center.

Available from the Minor Planet Center.

Not Available

Thanks to their past history on the main-sequence phase, supergiant massive stars develop a convective shell around the helium core. This intermediate convective zone (ICZ) plays an essential role in governing which g-modes are excited. Indeed, a strong radiative damping occurs in the high-density radiative core but the ICZ acts as a barrier