The Solar Radius at 37 GHz through Cycles 22 to 24

Caius L. Selhorst, Juha Kallunki, C. G. Giménez de Castro +2

To better understand the influence of the activity cycle on the solar atmosphere, we report the time variation of the radius observed at 37 GHz ($\lambda$=8.1 mm) obtained by the Metsäho…