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Core and Wing Densities of Asymmetric Coronal Spectral Profiles: Implications for the Mass Supply of the Solar Corona
Spiros Patsourakos, James Klimchuk, Peter Young
Recent solar spectroscopic observations have shown that coronal spectral lines can exhibit asymmetric profiles, with enhanced emissions at their blue wings. These asymmetries corre…
CME Expansion as the Driver of Metric Type II Shock Emission as Revealed by Self-Consistent Analysis of High Cadence EUV Images and Radio Spectrograms
A. Kouloumvakos, S. Patsourakos, A. Hillaris +6
On 13 June 2010, an eruptive event occurred near the solar limb. It included a small filament eruption and the onset of a relatively narrow coronal mass ejection (CME) surrounded b…
Microwave and EUV Observations of an Erupting Filament and Associated Flare and CME
C. E. Alissandrakis, A. A. Kochanov, S. Patsourakos +3
A filament eruption was observed with the Siberian Solar Radio Telescope (SSRT) on June 23 2012, starting around 06:40 UT, beyond the West limb. The filament could be followed in S…
Hot coronal loops associated with umbral brightenings
C. E. Alissandrakis, S. Patsourakos
We analyzed AIA/SDO high-cadence images in all bands, HMI/SDO data, soft X-ray images from SXI/GOES-15, and Halpha images from the GONG network. We detected umbral brightenings tha…