Fig. 3.

XMM-Newton/pn light curve of Fermi J1544–0639. Bins of 1 ks are used. Top panel: count rate light curve in the 0.5–2 keV range. Middle panel: count rate light curve in the 2–10 keV range. Bottom panel: hardness ratio (2–10/0.5–2 keV) light curve. The vertical dashed lines separate the three intervals (A, B, C) defined for the spectral analysis. The solid horizontal lines correspond to the average hardness ratio for each interval.
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.