3 papers
astro-ph.SR2026
Origin of Coronal Extreme Ultraviolet Shockwaves without a Coronal Mass Ejection Event
Robert Bush, John Stefan, Alexander Kosovichev
A leading theory of sunquake generation involves flare-accelerated particles depositing energy into the photosphere. Simulations of sunquake excitation suggest co-excitation with w…
astro-ph.SR2025
An Acoustic Model for Sunquakes Unifying the Solar Interior and Atmosphere
John Stefan, Alexander Kosovichev
One of the leading hypotheses for sunquake generation suggests that flare-accelerated particles originating from the reconnection site in the corona travel down to the chromosphere…
astro-ph.SR2025
Structure and Dynamics of the Sun's Interior Revealed by Helioseismic and Magnetic Imager
Alexander Kosovichev, Sarbani Basu, Yuto Bekki +43
High-resolution helioseismology observations with the Helioseismic and Magnetic Imager (HMI) onboard Solar Dynamics Observatory (SDO) provide a unique three-dimensional view of the…