5 papers
Untangling EIT Waves: What a Measured Speed Actually Traces
Olena Podladchikova
Nearly three decades after the first SOHO/EIT observations, reported EUV-wave speeds still range from a few tens to more than 1000 km/s. This Perspective asks what those numbers ac…
Where Do Periodic Density Structures Acquire Coherence? A Low-Coronal Resonator Candidate and a 12-Event STEREO/SECCHI Transfer Test
Olena Podladchikova
Periodic density structures (PDS) are trains of plasma enhancements carried into the heliosphere, but their repeated timing does not by itself identify where the cadence is set. We…
Can MHD Oscillations Modulate Quasi-Periodic Plasma Release from Coronal Streamers?
Olena Podladchikova
Periodic density structures in the slow solar wind are associated with quasi-periodic plasma release from coronal streamer and open-closed boundary regions, but the origin of their…
The Physical Origin of Periodic Density Structures in the Solar Wind: Coronal Streamers as Magnetohydrodynamic Resonators
Olena Podladchikova
We present a comprehensive physical model explaining the origin of Periodic Density Structures (PDS) observed in white-light coronagraphs with characteristic periods of approximate…
On the Short Dissipation Scales and Current-Sheet Properties of Low-Coronal EUV Brightenings
Olena Podladchikova
Solar Orbiter EUV observations reveal ubiquitous small-scale brightenings in the quiet-Sun low corona. We analyze the spatial and temporal dissipation scales of these events with a…