机译:XMM-Newton and Chandra measurements of the AGN intrinsic absorption: dependence on luminosity and redshift
Natl Observ Athens, Inst Astron & Astrophys, GR-15236 Athens, Greece;
Univ London Imperial Coll Sci Technol & Med, Dept Phys, Blackett Lab, London 2BZ SW7, England;
Astrophys Inst Potsdam, D-14482 Potsdam, GermanyInst Astrofis Canarias, E-38200 San Cristobal la Laguna, Spain;
surveys; X-rays : galaxies; X-rays : general; ACTIVE GALACTIC NUCLEI; X-RAY SOURCES; DIGITAL SKY SURVEY; DEEP FIELD-SOUTH; XMM-NEWTON/2DF SURVEY; HELLAS2XMM SURVEY; OPTICAL IDENTIFICATIONS; SPECTRAL PROPERTIES; STAR-FORMATION; GALAXIES;