Programme by Session

We present the first full Atacama Large Millimeter Array (ALMA) observation of a solar prominence from observing cycle 4 in band 3 (84-116 GHz), with simultaneous observations from the Atmospheric Imaging Assembly (AIA) onboard the Solar Dynamics Observatory (SDO) in 171Å, 193Å, 211Å, and 304Å; and the Interface Region Imaging Spectrograph (IRIS) in C II (1330Å), Si IV (1400Å), and Mg II (2796Å). The prominence was located in the South West of the Sun and appeared to have no major large scale evolution over the ALMA observation period. However, at the end of the ALMA observation period we observe a small scale plasma structure extending from the top of the prominence towards the solar limb. This is seen rather faintly in ALMA, but easily seen in 304Å from SDO/AIA and C II and Mg II from IRIS/SJI. The SDO/AIA and IRIS observations extend beyond the ALMA observing window and confirm this evolution. This structure is seen to reach the solar limb in 304Å and C II and Mg II.