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| Paper: |
The Ultra-Fast Outflow in the Quasar PG 1211+143 |
| Volume: |
460, AGN Winds in Charleston |
| Page: |
13 |
| Authors: |
Reeves, J.; Pounds, K. |
| Abstract: |
The evidence for an ultra-fast outflow in the quasar PG 1211+143 is
re-examined. A fast outflow, measured in terms of
blueshifted He or H-like 1s–2p lines from Fe, S, Mg and Ne, is required
at high confidence and is measured independently in both of the pn and MOS
detectors on-board XMM-Newton. Indeed a null hypothesis model of no
blue-shifted absorption is rejected with a negligible probability of
6.5 × 10–30 in the 2001 XMM-Newton observations. Furthermore the
iron K shell absorption profile is detected in all of the
2001, 2004 and 2007 observations, with consistent parameters within the
errors. The mass outflow rate derived from the observations
lies within the likely range from 1.5 – 10 M☉ yr-1,
with an outflow velocity of 0.10 ± 0.01c. The minimum mechanical power
derived for the outflow is then
4 × 1044 erg s-1, at least 10% of the quasar bolometric
luminosity. |
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