Free Access

Fig. 1.

image

Image of BH M 87* at 1.3 mm wavelength obtained on April 11, 2017, by the EHT (adapted from Fig. 3 in EHT Collaboration 2019a). The grey contour levels correspond to brightness temperature values of (2, 2.5, 3, …, 5.5) × 109 K. The white dashed lines indicate a photon ring of 42 μas in diameter equivalent to ≃11 M, and the position angle of large-scale jet PA = 288° (WNW). The units of the grid are the angular size of the M 87* gravitational radius θg ≃ 3.8 μas.

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.