SIMBAD references

XMM-Newton and Chandra/HETG spectra of the Compton-thin (N_H∼4x10²³cm^–2) Seyfert 2 galaxy, NGC 4507, are analyzed and discussed. The main results are: a) the soft X-ray emission is rich in emission lines; an (at least) two-zone photoionization region is required to explain the large range of ionization states; b) the 6.4keV iron line is likely emitted from Compton-thick matter, implying the presence of two circumnuclear cold regions, one Compton-thick (the emitter), one Compton-thin (the cold absorber); c) evidence of an Fe XXV absorption line is found in the Chandra/HETG spectrum. The column density of the ionized absorber is estimated to be a few x10²²cm^–2.