Fig. 3.
Download original image
O−C plots for both components of double Cepheids with anticorrelated phase shifts (r < −0.7). A common orbital fit is shown. The first four objects show clear LTTE, although for OGLE-LMC-CEP-2699, a fourth-order polynomial had to be subtracted from the O−C curves. Anticorrelated variability can also be seen for OGLE-LMC-CEP-0835 (after subtraction of a parabola) but the secondary shows strong deviation at 1500 days. The phase shifts of OGLE-LMC-CEP-0571 can be explained by an anticorrelated linear period change of the components and do not prove binarity.
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.