2006/10/04 by M. Cappi · 3 citations
Physics and Astronomy · #Accretion (finance) #Accretion disc #Active galactic nucleus #Astrophysical Phenomena and Observations #Astrophysical jet #Astrophysics and Cosmic Phenomena #Galaxies: Formation, Evolution, Phenomena #Gravitation #Ionization #Relativistic quantum chemistry #Spectral line #Spectroscopy #astro-ph
paper · pdf · doi:10.1002/asna.200610639
published as Astron.Nachr. 88 (2006) 1-8 · 8 pages and 9 figures, to appear in Astronomical Notes (Astron. Nachr.), issue number 2006/10
arxiv created 2006/10/04 · openalex publication_date 2006/11/28 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Abstract 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. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)