54 citations · 236 across the 17 of their papers we have counts for
16 papers · 1 filter
Nonlinear steepening of a fast magnetoacoustic wave in the vicinity of a coronal magnetic null point
Yu Zhong, Valery M. Nakariakov, Mariana Cécere +1
The interaction of a fast magnetoacoustic wave with a magnetic null point is studied in the context of the sympathetic flare phenomenon. Attention is paid to steepening the wave ca…
Observational and numerical characterization of a recurrent arc-shaped front propagating along a coronal fan
M. V. Sieyra, S. Krishna Prasad, G. Stenborg +5
Recurrent, arc-shaped intensity disturbances were detected by EUV channels in an active region. The fronts were observed to propagate along a coronal loop bundle rooted in a small…
Pseudostreamer influence on flux rope evolution
A. Sahade, M. Cécere, M. V. Sieyra +3
A critical aspect of solar activity is the coupling between eruptions and the surrounding coronal magnetic field, which determines the trajectory and morphology of the eruptive eve…
Estimating the coronal supra-arcade downflows radio emission: from centimetre through submillimetre wavelengths
Ernesto Zurbriggen, C. Guillermo Giménez de Castro, Andrea Costa +2
Supra-arcade downflows (SADs) are infrequent, wiggly opaque structures observed to descend through the solar corona, mostly in EUV and soft X-ray frequencies. From their physical c…
Slow and sausage loop mode excitation due to local and global spontaneous perturbations
H. Capettini, M. Cécere, A. Costa +2
We analyse the capability of different type of perturbations -associated with usual environment energy fluctuations of the solar corona- to excite slow and sausage modes in solar f…
Analysis of large deflections of prominence-CME events during the rising phase of solar cycle 24
M. V. Sieyra, M. Cécere, H. Cremades +7
Motivated by the need to improve the ability to forecast whether a certain coronal mass ejection (CME) is to impact Earth, and by the insufficiency of statistical studies that anal…
Solar slow magneto-acoustic-gravity waves: an erratum correction and a revisited scenario
E. Zurbriggen, M. V. Sieyra, A. Costa +2
Slow waves are commonly observed on the entire solar atmosphere. Assuming a thin flux tube approximation, the cut-off periods of slow-mode magneto-acoustic-gravity waves that trave…
Slow magnetoacoustic gravity waves in an equilibrium stratified solar atmosphere: cut-off periods through the transition region
A. Costa, M. Schneiter, E. Zurbriggen
Assuming the thin flux tube approximation, we introduce an analytical model that contemplates the presence of: a non-isothermal temperature; a varying magnetic field and a non-unif…
MHD simulations of coronal supra-arcade downflows including anisotropic thermal conduction
E. Zurbriggen, A. Costa, A. Esquivel +2
Coronal supra-arcade downflows (SADs) are observed as dark trails descending towards hot turbulent fan shaped regions. Due to the large temperature values, and gradients in these f…
Two step chromospheric Moreton wave excitation in a blast-wave scenario. A case study: the December 06, 2006 event
G. Krause, M. Cécere, C. Francile +3
We examine the capability of a blast-wave scenario -associated to a coronal flare or to the expansion of CME flanks- to reproduce a chromospheric Moreton phenomenon. We also simula…
On the sensitivity of extrasolar mass-loss rate ranges: HD 209458b a case study
C. S. Villarreal D'Angelo, E. M. Schneiter, A. Costa +3
We present a 3D hydrodynamic study of the effects that different stellar wind conditions and planetary wind structures have on the calculated Ly- absorptions produced during the…
Simulation of descending multiple supra--arcade reconnection outflows in solar flares
M. Cécere, M. Schneiter, A. Costa +2
After recent AIA observations by Savage, McKenzie and Reeves we revisit the scenario proposed by us in previous papers. We have shown that sunward, generally dark plasma features o…
Numerical simulation of fundamental trapped sausage modes
M. Cécere, A. Costa, O. Reula
Context: We integrate the 2D MHD ideal equations of a straight slab to simulate observational results associated with fundamental sausage trapped modes. Aims: Starting from a non-e…
Simulation of dark lanes in post--flare supra--arcades
L. S. Maglione, E. M. Schneiter, A. Costa +1
Using two simulations of 1.5D, for the first time, in Costa et al. (2009) and Shulz et al. (2010) we numerically reproduce the observational dark inflows described in Verwichte et…
Numerical simulation of dark lanes in post-flare supra-arcade
A. Costa, S. Elaskar, C. Fernandez +1
We integrate the MHD ideal equations to simulate dark void sunwardly moving structures in post--flare supra--arcades. We study the onset and evolution of the internal plasma instab…
Numerical simulation of the internal plasma dynamics of post-flare loops
C. A. Fernandez, A. Costa, S. Elaskar +1
We integrate the MHD ideal equations of a slender flux tube to simulate the internal plasma dynamics of coronal post-flare loops. We study the onset and evolution of the internal p…