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arXiv · 1710.04714

Chandra imaging of the $\sim$kpc extended outflow in 1H 0419-577

L. Di Gesu·E. Costantini·E. Piconcelli·J. S. Kaastra·M. Mehdipour·S. Paltani
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Abstract

The Seyfert 1 galaxy 1H 0419-577 hosts a $\sim$kpc extended outflow that is evident in the [\ion{O}{iii}] image and that is also detected as a warm absorber in the UV/X-ray spectrum. Here, we analyze a $\sim$30 ks Chandra-ACIS X-ray image, with the aim of resolving the diffuse extranuclear X-ray emission and of investigating its relationship with the galactic outflow. Thanks to its sub-arcsecond spatial resolution, Chandra resolves the circumnuclear X-ray emission, which extends up to a projected distance of at least $\sim$16 kpc from the center. The morphology of the diffuse X-ray emission is spherically symmetrical. We could not recover a morphological resemblance between the soft X-ray emission and the ionization bicone that is traced by the [\ion{O}{iii}] outflow. we argue that the photoionized gas nebula must be distributed mostly along the polar directions, outside our line of sight. In this geometry, the X-ray/UV warm absorber must trace a different gas component, physically disconnected from the emitting gas, and located closer to the equatorial plane.

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L. Di Gesu, E. Costantini, E. Piconcelli, J. S. Kaastra, M. Mehdipour, S. Paltani. 2017-10-10. Chandra imaging of the $\sim$kpc extended outflow in 1H 0419-577. https://doi.org/10.1051/0004-6361%2F201731853

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