Open Access

Fig. 3.

image

Download original image

Driver orbit from the motion of the S1 spiral pattern, overlaid on observations in the SPHERE H band 𝒬ϕ (top; UT 2023 September 20) and ALMA Band 7 continuum (bottom; UT 2017 August 9). For a central star with 2.0 ± 0.1 M, the yr−1 counterclockwise motion of the S1 spiral corresponds to a driver at 118 ± 20 au, or . Subject to motion measurement uncertainties here, the derived orbit is consistent with the ≈120 au ALMA gap-opener proposed in Kraus et al. (2017) within 1σ.

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.