INVESTIGADORES
MANDRINI Cristina Hemilse
congresos y reuniones científicas
Título:
Submillimeter observations of the October 30, 2004, solar event
Autor/es:
CRISTIANI, G.D.; GIMÉNEZ DE CASTRO, C.G.; MANDRINI, C.H.; ROVIRA, M.G.
Lugar:
Atibaia
Reunión:
Congreso; XXXII Reunião Anual da Sociedade Astronômica Brasileira; 2006
Institución organizadora:
Sociedade Astronômica Brasileira
Resumen:
We analyze the solar
event on October 30, 2004, that ocurred in active region (AR) 10691 (N13W18) at
11:38 UT. High time resolution observations at 212 GHz obtained with the
Submillimeter Solar Telescope (SST) showed a very impulsive event (~1500
s.f.u.), followed by a long-lasting thermal phase. The burst was also observed at
405 GHz, the second observational frequency of SST. We combine SST data with
the observations of the Radio Solar Telescope Network (RSTN) to determine the
radio spectrum. This spectral analysis does not allow us to infer the presence
of the THz component seen by Kaufmann et al (2004). EUV images from the Extreme
Ultraviolet Imaging Telescope (SoHO/EIT) are used to identify the possible
emitting sources. Assuming that the origin of the emission during the impulsive
phase is gyrosynchrotron radiation from mildly relatisvistic electrons, we
derive the parameters of the accelerated electrons and emitting source.