Absorption Variability in NGC 1365 Seen With NuSTAR and XMM-Newton

Between July 2012 and February 2013, NuSTAR and XMM-Newton performed four long-look joint ob- servations of the type 2 Seyfert NGC 1365 with the aim of measuring relativistic reflection from the inner region of the accretion disk. Fortuitously, two of observations caught the source in an unusually low absorption state, and one of these observation showed an uncovering of the central source. We have analyzed the variable absorption seen in these observations in order to characterize the geometry of the absorbing material in this source. In addition to a constant (likely distant) absorber with a column density of ∼1 × 10²² cm^-2, we find a variable absorber with a range of N_H from 5-25 × 10²² cm^-2 and a range of covering fractions from ∼0.5-1 over the course of the four observations.