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A study of a coronal hole associated with a large filament eruption
(2017)
We report the results of a detailed study of an equatorial coronal hole and a dimming region related to the eruptions of a nearby large filament and subsequent coronal mass ejections (CMEs). The dynamic eruptions of the ...
Energy input flux in the global quiet-sun corona
(IOP Publishing, 2017-07)
We present first results of a novel technique that provides, for the first time, constraints on the energy input flux at the coronal base (r ∼ 1.025 R o) of the quiet Sun at a global scale. By combining differential emission ...
Evolution of the Global Temperature Structure of the Solar Corona During the Minimum between Solar Cycles 23 and 24
(Iop Publishing Ltd, 2013-07-19)
The combination of Differential Emission Measure Tomography (DEMT) with extrapolation of the photospheric magnetic field allows determinatio/n of the electron density and electron temperature along individual magnetic field ...
A simple model for the evolution of multi-stranded coronal loops
(IOP Publishing, 2010-08-10)
We develop and analyze a simple cellular automaton model that reproduces the main properties of the evolution of soft X-ray coronal loops. We are motivated by the observation that these loops evolve in three distinguishable ...
A nanoflare based cellular automaton model and the observed properties of the coronal plasma
(Iop Publishing, 2016-09-07)
We use the cellular automaton model described in López Fuentes & Klimchuk (2015, ApJ, 799, 128) to study the evolution of coronal loop plasmas. The model, based on the idea of a critical misalignment angle in tangled ...
Two-dimensional cellular automaton model for the evolution of active region coronal plasmas
(Iop Publishing, 2015-02)
We study a two-dimensional cellular automaton (CA) model for the evolution of coronal loop plasmas. The model is based on the idea that coronal loops are made of elementary magnetic strands that are tangled and stressed ...
The Solar Minimum Corona from Differential Emission Measure Tomography
(IOP Publishing, 2010-06)
We present results derived from a dual-spacecraft tomographic reconstruction of the solar corona’s three-dimensional (3D) extreme ultraviolet (EUV) emissivity. We use simultaneously taken STEREO A and B spacecraft EUVI ...
Newly discovered global temperature structures in the quiet sun at solar minimum
(IOP Publishing, 2012-08)
Magnetic loops are building blocks of the closed-field corona. While active region loops are readily seen in images taken at EUV and X-ray wavelengths, quiet-Sun (QS) loops are seldom identifiable and are therefore difficult ...
Are constant loop widths an artifact of the background and the spatial resolution?
(IOP Publishing, 2008-12)
We study the effect of the coronal background in the determination of the diameter of EUV loops, and we analyze the suitability of the procedure followed in a previous paper for characterizing their expansion properties. ...
Multimodal differential emission measure in the solar corona
(Iop Publishing, 2015-10-01)
The Atmospheric Imaging Assembly (AIA) telescope on board the Solar Dynamics Observatory provides coronal extreme ultraviolet imaging over a broader temperature sensitivity range than the previous generations of instruments ...