Open Access

Fig. 15


Top panel: 70 observed Hα profiles of o Aquarii from the BeSS database, covering about 17 yr of observations (2001–2018). Bottom panel: Hα equivalent width as a function of the observation time (modified Julian date). Civil dates are indicated for a part of the measured EW. The mean EW (solid) within the standard deviation (dashed lines) is marked in black. Local regression fit of EW, as a function of time, is shown as a solid red line. The time interval covered by our interferometric observations (VEGA) is indicated with dashed red lines. See text for discussion.

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.