Free Access

Fig. 3

thumbnail

New photometric points (circles) of OJ287 from new HCO measurements, with upper limits indicated (for the dates when the object was fainter than the relevant plate magnitude limit, red squares), plotted as light curve B-mag vs. year. For these new magnitude estimates the survey HCO plates (not used for OJ287 before) with lower plate limits than field plates (of higher quality but less numerous) were used. These results confirm that even the survey archival photographic plates with target magnitude near the plate limits can provide scientifically valuable results (note that for the dates of these points there are no other measurements available).

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.