Transient obscuration event captured in NGC 3227. II. Warm absorbers and obscuration events in archival XMM-Newton and NuSTAR observations

X-raysgalaxies, galaxiesactive, galaxiesSeyfert, galaxiesindividualNGC 3227, techniquesspectroscopic, Astrophysics - Astrophysics of Galaxies, Astrophysics - High Energy Astrophysical Phenomena