Free Access

Fig. 2


Light curve of the 1 mm-continuum of CRL 618 using ancillary data compiled by Sánchez Contreras et al. (2004; black circles); new measurements are added from Reuter et al. (1997), Nakashima et al. (2007), Planck Collaboration Int. XVIII (2015), and this work (red circles). Some reference dates are indicated. Together with significant abrupt changes in short timescales of less than 0.1 yr, a periodic pattern with a period of ~17 yr is hinted (dotted line) on top of an overall, long-term smooth increase.

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.