期刊
ASTRONOMISCHE NACHRICHTEN
卷 327, 期 10, 页码 1012-1019出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/asna.200610639
关键词
galaxies : active; quasars : absorption lines; X-rays : galaxies
Current, accumulating evidence for (mildly) relativistic blue- and red-shifted absorption lines in AGNs is reviewed. XMM-Newton and Chandra sensitive X-ray observations are starting to probe not only the kinematics (velocity) but also the dynamics (accelerations) of highly ionized gas flowing in-and-out from, likely, a few gravitational radii from the black hole. It is thus emphasized that X-ray absorption-line spectroscopy provides new potential to map the accretion flows near black holes, to probe the launching regions of relativistic jets/outflows, and to quantify the cosmological feedback of AGNs. Prospects to tackle these issues with future high energy missions are briefly addressed.
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