347 citations · 2.4k across the 72 of their papers we have counts for
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Ca II 8542 Å brightenings induced by a solar microflare
C. Kuckein, A. Diercke, S. J. González Manrique +6
We study small-scale brightenings in Ca II 8542 Å line-core images to determine their nature and effect on localized heating and mass transfer in active regions. High-resolution 2D…
A Hot Downflowing Model Atmosphere For Umbral Flashes And The Physical Properties Of Their Dark Fibrils
Vasco M. J. Henriques, Michail Mathioudakis, Hector Socas-Navarro +1
We perform NLTE inversions in a large set of umbral flashes, including the dark fibrils visible within them, and in the quiescent umbra by using the inversion code NICOLE on a set…
Search for torsional oscillations in isolated sunspots
Ana Belén Griñón-Marín, Hector Socas-Navarro, Rebecca Centeno
In this work we seek evidence for global torsional oscillations in alpha sunspots. We have used long time series of continuum intensity and magnetic field vector maps from the Heli…
First detection of sign-reversed linear polarization from the forbidden [O I] 630.03 nm line
A. G. de Wijn, H. Socas-Navarro, N. Vitas
We report on the detection of linear polarization of the forbidden [O i] 630.03 nm spectral line. The observations were carried out in the broader context of the determination of t…
Uncertainties in the solar photospheric oxygen abundance
M. Cubas Armas, A. Asensio Ramos, H. Socas-Navarro
The purpose of this work is to better understand the confidence limits of the photospheric solar oxygen abundance derived from three-dimensional models using the forbidden [OI] lin…