153 citations · 602 across the 33 of their papers we have counts for
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The quiet Sun at mm Wavelengths as Seen by ALMA
Costas Alissandrakis, Timothy Bastian, Roman Brajša
Solar observations at sub-mm, mm and cm wavelengths offer a straightforward diagnostic of physical conditions in the solar atmosphere because they yield measurement of brightness t…
Where is the base of the Transition Region? Evidence from TRACE, SDO, IRIS and ALMA observations
C. E. Alissandrakis
Classic solar models put the Chromosphere-Corona Transition Region (CCTR} at Mm above the level, whereas rMHD models place it in a wider range of heights. Obs…
A first look at the submillimeter Sun with ALMA
C. E. Alissandrakis, T. S. Bastian, A. Nindos
We present the first full-disk solar images obtained with the Atacama Large Millimeter/submillimeter Array (ALMA) in Band 7 (0.86 mm; 347 GHz). In spite of the low spatial resoluti…
First detection of metric emission from a solar surge
C. E. Alissandrakis, S. Patsourakos, A. Nindos +2
We report the first detection of metric radio emission from a surge, observed with the Nançay Radioheliograph (NRH), STEREO and other instruments. The emission was observed during…
High-resolution observations with ARTEMIS/JLS and the NRH: IV. Imaging spectroscopy of spike-like structures near the front of type-II bursts
S. Armatas, C. Bouratzis, A. Hillaris +5
Narrowband bursts (spikes) appear on dynamic spectra from microwave to decametric frequencies. They are believed to be manifestations of small-scale energy release through magnetic…