ALMA observations of the variability of the quiet Sun at millimeter wavelengths
A. Nindos,
S. Patsourakos,
C. E. Alissandrakis
et al.
Abstract:Aims. We address the variability of the quiet solar chromosphere at 1.26 mm and 3 mm with a focus on the study of spatially resolved oscillations and transient brightenings, i.e. small, weak events of energy release. Both phenomena may have a bearing on the heating of the chromosphere. Methods. We used Atacama Large Millimeter/submillimeter Array (ALMA) observations of the quiet Sun at 1.26 mm and 3 mm. The spatial and temporal resolution of the data were 1 − 2 and 1 s, respectively. The concatenation of light… Show more
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