activity
20232026
most citedA comparative study of two X2.2 and X9.3 solar flares observed with HARPS-N: Reconciling Sun-as-a-star spectroscopy and high-spatial resolution solar observations in the context of the solar-stellar connection

29 citations · 58 across the 5 of their papers we have counts for

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Showing 2024Show all

2 papers · 1 filter

astro-ph.SR2024★ 9 cited

The extremely strong non-neutralized electric currents of the unique solar active region NOAA 13664

Ioannis Kontogiannis

In May 2024, the extremely complex active region National Oceanic and Atmospheric Administration (NOAA) 13664 produced the strongest geomagnetic storm since 2003. The aim of this s…

astro-ph.SR2024★ 7 cited

Solar active region evolution and imminent flaring activity through a color-coded visualization of photospheric vector magnetograms

I. Kontogiannis, A. G. M. Pietrow, M. K. Druett +3

The emergence of magnetic flux, its transition to complex configurations, and the pre-eruptive state of active regions are probed using photospheric magnetograms. We aim to pinpoin…