Zobrazeno 1 - 10
of 277
pro vyhledávání: '"Cecere, M."'
Publikováno v:
A&A 676, A8 (2023)
We study the intensity, the modulation depth and the mean modulation depth of the gyrosynchrotron (GS) radiation as a function of the frequency and the line of sight (LOS) in fast sausage modes. By solving the 2.5D MHD ideal equations of a straight c
Externí odkaz:
http://arxiv.org/abs/2306.11095
Publikováno v:
A&A 662, A113 (2022)
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 event. Pseudostreamers (PSs) are coronal magnetic structures formed by ar
Externí odkaz:
http://arxiv.org/abs/2205.07936
Publikováno v:
A&A 644, A106 (2020)
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 flaring loops. We perform numerical simulations of the MHD ideal equati
Externí odkaz:
http://arxiv.org/abs/2011.00140
Autor:
Sieyra, M. V., Cécere, M., Cremades, H., Iglesias, F. A., Sahade, A., Mierla, M., Stenborg, G., Costa, A., West, M., D'Huys, E.
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 analyze the whole erupting system with the focus on the governing conditio
Externí odkaz:
http://arxiv.org/abs/2007.14317
Publikováno v:
ApJ, 832:74, 2016
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 fan regions the thermal conduction should be very efficient. While seve
Externí odkaz:
http://arxiv.org/abs/1703.05802
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 simulate the Moreton event of December 06, 2006 considering both the corona
Externí odkaz:
http://arxiv.org/abs/1505.02723
Autor:
Cécere, M., Sieyra, M.V., Cremades, H., Mierla, M., Sahade, A., Stenborg, G., Costa, A., West, M.J., D’Huys, E.
Publikováno v:
In Advances in Space Research 15 March 2020 65(6):1654-1662
Supra-arcade downflows (SADs) are sunward, generally dark, plasma density depletions originated above posteruption flare arcades. In this paper using 3D MHD simulations we investigate if the SAD cavities can be produced by a direct combination of the
Externí odkaz:
http://arxiv.org/abs/1407.3298
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 originated above posteruption flare arcades are consistent with a scena
Externí odkaz:
http://arxiv.org/abs/1205.2090
In this article we develop a numerical scheme to deal with interfaces between touching numerical grids when solving the second-order wave equation. We show that it is possible to implement an interface scheme of "penalty" type for the second-order wa
Externí odkaz:
http://arxiv.org/abs/1112.3039