Discovery of an X-Ray Quasar Wind Driving the Cold Gas Outflow in the Ultraluminous Infrared Galaxy IRAS F05189-2524

Abstract

We present new XMM-Newton and NuSTAR observations of the galaxy merger IRAS F05189-2524 which is classified as an ultra-luminous infrared galaxy (ULIRG) and optical Seyfert 2 at z = 0.0426. We test a variety of spectral models which yields a best-fit consisting of an absorbed power law with emission and absorption features in the Fe K band. Remarkably, we find evidence for a blueshifted Fe K absorption feature at E = 7.8 keV (rest-frame) which implies an ultra-fast outflow (UFO) with v out = 0.11 ± 0.01c. We calculate that the UFO in IRAS F05189-2524 has a mass outflow rate ofṀ out 1.0 M yr −1 , a kinetic power ofĖ K 8% L AGN , and a momentum rate (or force) ofṖ out 1.4 L AGN /c. Comparing the energetics of the UFO to the observed multi-phase outflows at kiloparsec scales yields an efficiency factor of f ∼ 0.05 for an energy-driven outflow. Given the uncertainties, however, we cannot exclude the possibility of a momentum-driven outflow. Comparing IRAS F05189-2524 with nine other objects with observed UFOs and large-scale galactic outflows suggests that there is a range of efficiency factors for the coupling of the energetics of the nuclear and galaxy-scale outflows that likely depend on specific physical conditions in each object.

Linking the small-scale relativistic winds and the large-scale molecular outflows in the z = 1.51 lensed quasar HS 0810+2554

“…momentum boosts consistent with a momentum-conserving outflow are PDS 456 and IRAS F11119+3257, whereas the other objects including HS 0810+2554 are closer to having energy-conserving outflows. Smith et al (2019) find a similar result in the sense that the efficiency factors coupling the small-scale relativistic winds and the large-scale molecular outflows of their sample of objects varies significantly. Mizumoto et al (2019) reported several trends between the energy-transfer rate C defined as…”

“…(vi) We would like to point out that while in the local Universe (z < ∼ 0.2) the number of objects with simultaneous detection of UFOs and molecular outflows is approaching ∼10 (see Mizumoto et al 2019;Smith et al 2019), HS 0810+2554 is the only other object at z > 1 in addition to APM 08279+5255 where a simultaneous detection has been made. We estimate the momentum boost, p mo /(L Bol /c), of the possible molecular outflow of HS 0810+2554 to be 26 ± 6.…”

“…Linking the small-scale relativistic winds and the large-scale molecular outflows in the z = 1.51 lensed quasar HS 0810+2554 2019; Sirressi et al 2019;Smith et al 2019) have revealed largescale molecular outflows traced in OH and CO extending over kpc scales with velocities exceeding ∼1000 km s −1 and with massive outflow rates (up to ∼1200 M yr −1 ).…”

Tracing AGN feedback, from the SMBH horizon up to cluster scales

“…In Fig. 1 we show the recent results on another ULIRG, IRAS F05189−2524, along with a collection of literature results (Smith et al 2019).…”

“…UFO measurements are plotted as circles, warm ionized and neutral gas as squares, the molecular (CO) as downward triangles, and the molecular (OH) as upward triangles. For molecular measurements, filled symbols indicate a time-averaged momentum rate whereas an open symbol is an "instantaneous" or local momentum rate.Figure adaptedfromSmith et al (2019).…”