activity
20172025
most citedA Statistical Study of Photospheric Magnetic Field Changes During 75 Solar Flares

37 citations · 49 across the 3 of their papers we have counts for

collaborators

5 papers

astro-ph.SR2025★ 2 cited

Superstrong magnetic fields in sunspot bipolar light bridges

J. S. Castellanos Durán, A. Korpi-Lagg, S. K. Solanki +2

Recent solar observations of bipolar light bridges (BLBs) in sunspots have, in a few individual cases, revealed magnetic fields up to 8.2 kG, which is at least twice as strong as t…

astro-ph.SR2021★ 10 cited

How rare are counter Evershed flows?

J. Sebastián Castellanos Durán, Andreas Lagg, Sami K. Solanki

One of the main characteristics of the penumbra of sunspots is the radially outward-directed Evershed flow. Only recently have penumbral regions been reported with similar characte…

astro-ph.SR2020

The Statistical Relationship between White-light Emission and Photospheric Magnetic Field Changes in Flares

J. S. Castellanos Durán, L. Kleint

Continuum emission, also called white-light emission (WLE), and permanent changes of the magnetic field () are often observed during solar flares. But their relati…

astro-ph.SR2019

Fast downflows in a chromospheric filament

K. Sowmya, A. Lagg, S. K. Solanki +1

An active region filament in the upper chromosphere is studied using spectropolarimetric data in He I 10830 A from the GREGOR telescope. A Milne-Eddingon based inversion of the Unn…

astro-ph.SR2017★ 37 cited

A Statistical Study of Photospheric Magnetic Field Changes During 75 Solar Flares

J. S. Castellanos Durán, L. Kleint, B. Calvo-Mozo

Abrupt and permanent changes of photospheric magnetic fields have been observed during solar flares. The changes seem to be linked to the reconfiguration of magnetic fields, but th…