Astronomy and Astrophysics – Astrophysics
Scientific paper
2005-03-14
Astronomy and Astrophysics
Astrophysics
Accepted for publication in MNRAS. 6 pages. 6 figures
Scientific paper
10.1111/j.1745-3933.2005.00038.x
High-velocity outflows from AGN are a well-known phenomena in terms of the Broad Absorption Lines seen in the UV/optical. More recently, similar, possibly related, outflows have been reported in the X-ray. The most extreme example is seen in the nearby, luminous QSO PDS 456, which displays a massive, high velocity (50000 km s-1), high-ionization X-ray outflow of 10 solar masses yr-1. Here we present the UV spectrum of PDS 456 as observed by the Hubble Space Telescope. We find the UV spectrum is also extreme, displaying very broad emission-lines, with CIV 1549 blueshifted by 5000 km s-1 and a broad Ly-alpha absorption trough blueshifted by 14000-24000 km s-1. No strong, broad high-ionization absorption features are seen. We interpret the combined UV and X-ray spectrum of PDS 456 as the signature of a decelerating, cooling outflow, which may be driven by radiation and/or magnetic field. This outflow may be the source of some of the broad emission and absorption-line gas.
O'Brien Paul T.
Reeves James N.
Simpson Chris
Ward Martin J.
No associations
LandOfFree
The Connection between Ultraviolet and X-ray Outflows in AGN: the case of PDS 456 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The Connection between Ultraviolet and X-ray Outflows in AGN: the case of PDS 456, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Connection between Ultraviolet and X-ray Outflows in AGN: the case of PDS 456 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-659557