Free Access

Fig. 1.

image

Panel a: single-dish ALMA 248 GHz (1.21 mm, Band 6). Panel b: SDO-HMI magnetogram, with white box outlining the quiet Sun area shown in middle row panels. Both images were taken on 18 December 2015 at 20:12 UT. Magnetogram intensity was clipped at ±120 Gauss and ALMA contours of 6500 K were overlaid in green. Panel c: ALMA image of the quiet Sun shown enlarged and compared with panel d: SDO-HMI magnetogram, panel e: SDO-AIA 193 Å filtergram, and panel f: GOES-13 SXI tin (Sn) filter image, with ALMA contours overlaid (levels at 6300, 6400, 6500, 6600, and 6700 K). Panels g–j: enlargements of a single ALMA bright feature, marked in the white rectangle in panel c, at the same wavelengths as in the middle row. The beam size of the single-dish ALMA measurements, 26″, is given in panel c.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.