5 papers · 1 filter
Hemispheric Asymmetry of Solar Active Regions Arises from a Nested Population
Aimee A. Norton
We investigate the longitude--time distribution of NOAA active regions (ARs) during Solar Cycles 22--24 and find statistically significant North--South asymmetry in AR emergence. U…
Long-Term Clustering Pattern of Solar Active Regions and Their Potential Connection with Magneto-Rossby Waves
Junwei Zhao, Ruizhu Chen, Aimee A Norton
Large solar active regions (ARs) tend to be long lived and spatially clustered, with repeated emergence occurring in persistent solar activity nests over extended timescales. By an…
Quantifying Suppression of Solar Surface Magnetic Flux Advection with Increasing Field Strength
V. Aparna, Sanjiv K. Tiwari, Ronald L. Moore +4
One of the main theories for heating of the solar corona is based on the idea that solar convection shuffles and tangles magnetic field lines to make many small-scale current sheet…
The Dependence of Joy's Law and Mean Tilt as a Function of Flux Emergence Phase
Lucy W. Will, Aimee A. Norton, Jon Todd Hoeksema
Data from the Michelson Doppler Imager (MDI) and Helioseismic and Magnetic Imager (HMI) are analyzed from 1996 to 2023 to investigate tilt angles () of bipolar magnetic regions…
The Magnetic Response of the Solar Atmosphere to Umbral Flashes
S. J. Houston, D. B. Jess, A. Asensio Ramos +4
Chromospheric observations of sunspot umbrae offer an exceptional view of magneto-acoustic shock phenomena and the impact they have on the surrounding magnetically-dominated plasma…