23 citations · 91 across the 11 of their papers we have counts for
12 papers · 1 filter
Understanding the Complex Morphology of a Coronal Mass Ejection. III: How to Create a Severe Geomagnetic Storm
Cecilia Mac Cormack, Abril Sahade, Erika Palmerio +4
On April 21, 2023, a complex filament eruption produced an Earth-directed coronal mass ejection (CME) that triggered the first severe geomagnetic storm of solar cycle 25. The prima…
Understanding the complex morphology of a CME II: how pre-eruptive conditions shape CME evolution
Abril Sahade, Cecilia Mac Cormack, Angelos Vourlidas +4
The morphology and heliospheric impact of coronal mass ejections (CMEs) are strongly shaped by their preeruptive magnetic configuration and surrounding coronal environment, yet the…
On the analysis of eruptive events with non-radial evolution
Abril Sahade, M. Valeria Sieyra, Mariana A. Cecere
Coronal mass ejections (CMEs) are major drivers of space weather disturbances, and their deflection from the radial direction critically affects their potential impact on Earth. Wh…
Understanding the complex morphology of a CME: multi-view analysis and numerical modeling
Cecilia Mac Cormack, Abril Sahade, Angelos Vourlidas +3
Although all coronal mass ejections (CMEs) that propagate into the heliosphere should contain a magnetic flux rope (MFR) component, the majority do not exhibit the expected white-l…
Observations of a New Form of Partial Filament Eruption
Abril Sahade, Judith Karpen, Spiro Antiochos
Coronal mass ejections (CMEs) and coronal jets are two of the best-studied forms of solar eruptions, with the same underlying physics. Previous studies have presented partial erupt…
Helmet streamer influence on the evolution of magnetic flux ropes
M. Cécere, P. F. Wyper, G. Krause +2
Context: Solar eruptions are crucial for space weather studies. Understanding the mechanisms influencing their evolution is key to improving predictions of their geoeffectiveness.…
Analysis of solar eruptions deflecting in the low corona: influence of the magnetic environment
A. Sahade, A. Vourlidas, C. Mac Cormack
Coronal mass ejections (CMEs) can exhibit non-radial evolution. The background magnetic field is considered the main driver for the trajectory deviation relative to the source regi…
Understanding the deflection of the `Cartwheel CME': data analysis and modeling
Abril Sahade, Angelos Vourildas, Laura Balmaceda +1
We study the low corona evolution of the `Cartwheel' coronal mass ejection (CME; 2008-04-09) by reconstructing its 3D path and modeling it with magneto-hydrodynamic simulations. Th…
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…
Polarity relevance in flux rope deflections triggered by coronal holes
Abril Sahade, Mariana Cécere, Andrea Costa +1
Many observations show that coronal holes (CHs) deviate coronal mass ejections (CMEs) away from them. However, there are some peculiar events reported where the opposite occurs. To…
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…
Influence of coronal holes on CME deflections: numerical study
Abril Sahade, Mariana Cécere, Gustavo Krause
The understanding of the causes that produce the deflection of coronal mass ejections (CMEs) is essential for the space weather forecast. In this article, we study the effects on C…