2004/10/11 by Jennifer E. Scott, Scott, Jennifer E., the FUSE AGN Working Group +1
Physics and Astronomy · #Astrophysics (astro-ph) #FOS: Physical sciences #astro-ph
paper · pdf · doi:10.48550/arxiv.astro-ph/0410270
3 pages, Contributed paper at the conference "Astrophysics in the Far Ultraviolet: Five Years of Discovery with FUSE", ASP Conf. Series, ed. G. Sonneborn, H. W. Moos and B.-G. Andersson
arxiv created 2004/10/11 · arxiv updated 2009/12/01
We present results from a coordinated FUSE, HST/STIS and Chandra campaign to study intrinsic UV and X-ray absorption in the outflow of the Seyfert 1 galaxy NGC 7469. Previous non-simultaneous observations of this outflow found two distinct UV absorption components, one of which likely corresponds to the X-ray absorber. The FUSE data reveal that the O VI absorption in this component has strengthened over time, as the continuum flux decreased. We use measured H I, N V, C IV, and O VI column densities to model self-consistently the photoionization state of the absorbers. We confirm the physical picture of the outflow in which the low velocity component is a highly ionized, high density absorber located near the broad emission line region, while the high velocity component is of lower density and resides farther from the central engine.