An Extreme Ultrafast Outflow in the Seyfert 2 Galaxy IRAS 00521-7054
Abstract
I will present results from a deep observation of the Seyfert 2 galaxy IRAS 00521-7054 with XMM-Newton (175 ks) and NuSTAR (400 ks). This observation caught the source in an unusually low-flux state, a factor of ~6 fainter than the available data in the archive. Our broadband coverage allows us to disentangle the absorption and reflection in this highly complex source, and we find a strong contribution from relativistic reflection from the inner accretion disk, implying the presence of a rapidly rotating black hole. We also find strong statistical evidence for absorption in an 'ultrafast' outflow, with a truly extreme outflow velocity of ~0.4c. Extensive simulations find the outflow to be detected in excess of 4-sigma significance. This is the second-fastest wind seen in absorption in any AGN to date. Under reasonable assumptions, we estimate that the outflow likely carries sufficient energy to drive significant galaxy-scale AGN feedback, and may even dominate the energy output from the system.
- Publication:
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AAS/High Energy Astrophysics Division
- Pub Date:
- March 2019
- Bibcode:
- 2019HEAD...1710628W