6 papers
Dynamics and evolution of an eruptive flare
L. Teriaca, A. Falchi, R. Falciani +2
We study the dynamics and evolution of a C2.3 two-ribbon flare, developed on 2002 August 11, during the impulsive and the long gradual phase. To this end we obtained multiwavelengt…
The solar chromosphere at high resolution with IBIS. I. New insights from the Ca II 854.2 nm line
G. Cauzzi, K. P. Reardon, H. Uitenbroek +7
(Abridged) Aims: In this paper, we seek to establish the suitability of imaging spectroscopy performed in the Ca II 854.2 nm line as a means to investigate the solar chromosphere a…
RHESSI images and spectra of two small flares
L. Maltagliati, A. Falchi, L. Teriaca
We studied the evolution of two small flares (GOES class C2 and C1) that developed in the same active region with different morphological characteristics: one is extended and the o…
Helium line formation and abundance in a solar active region
P. J. D. Mauas, V. Andretta, A. Falchi +3
An observing campaign (SOHO JOP 139), coordinated between ground based and SOHO instruments, has been planned to obtain simultaneous spectroheliograms of the same active region in…
Network and Internetwork: a compared Multiwavelength Analysis
G. Cauzzi, A. Falchi, R. Falciani
We analyze the temporal behavior of Network Bright Points (NBPs), present in the solar atmosphere, using a set of data acquired during coordinated observations between ground-based…
Atmospheric Models of Flare Stars: The Quiescent State of Ad Leo
P. Mauas, A. Falchi
We compute a semi-empirical atmospheric model for the dMe star AD Leo, which constitutes the first model computed to match the continuum observations, as well as a wide set of chro…