Extended X-ray emission from a quasar-driven superbubble

Jenny E. Greene; David Pooley; Nadia L. Zakamska; Julia M. Comerford; Ai Lei Sun

doi:10.1088/0004-637X/788/1/54

Extended X-ray emission from a quasar-driven superbubble

Jenny E. Greene, David Pooley, Nadia L. Zakamska, Julia M. Comerford, Ai Lei Sun

Astrophysical Sciences

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44 Scopus citations

Abstract

We present observations of extended, 20 kpc scale soft X-ray gas around a luminous obscured quasar hosted by an ultraluminous infrared galaxy caught in the midst of a major merger. The extended X-ray emission is well fit as a thermal gas with a temperature of kT 280 eV and a luminosity of L X 10 ⁴² erg s^-1 and is spatially coincident with a known ionized gas outflow. Based on the X-ray luminosity, a factor of ∼10 fainter than the [O III] emission, we conclude that the X-ray emission is either dominated by photoionization, or by shocked emission from cloud surfaces in a hot quasar-driven wind.

Original language	English (US)
Article number	54
Journal	Astrophysical Journal
Volume	788
Issue number	1
DOIs	https://doi.org/10.1088/0004-637X/788/1/54
State	Published - Jun 10 2014

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

Keywords

galaxies: active
galaxies: interactions
quasars: general

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10.1088/0004-637X/788/1/54

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title = "Extended X-ray emission from a quasar-driven superbubble",

abstract = "We present observations of extended, 20 kpc scale soft X-ray gas around a luminous obscured quasar hosted by an ultraluminous infrared galaxy caught in the midst of a major merger. The extended X-ray emission is well fit as a thermal gas with a temperature of kT 280 eV and a luminosity of L X 10 42 erg s-1 and is spatially coincident with a known ionized gas outflow. Based on the X-ray luminosity, a factor of ∼10 fainter than the [O III] emission, we conclude that the X-ray emission is either dominated by photoionization, or by shocked emission from cloud surfaces in a hot quasar-driven wind.",

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T1 - Extended X-ray emission from a quasar-driven superbubble

AU - Greene, Jenny E.

AU - Pooley, David

AU - Zakamska, Nadia L.

AU - Comerford, Julia M.

AU - Sun, Ai Lei

PY - 2014/6/10

Y1 - 2014/6/10

N2 - We present observations of extended, 20 kpc scale soft X-ray gas around a luminous obscured quasar hosted by an ultraluminous infrared galaxy caught in the midst of a major merger. The extended X-ray emission is well fit as a thermal gas with a temperature of kT 280 eV and a luminosity of L X 10 42 erg s-1 and is spatially coincident with a known ionized gas outflow. Based on the X-ray luminosity, a factor of ∼10 fainter than the [O III] emission, we conclude that the X-ray emission is either dominated by photoionization, or by shocked emission from cloud surfaces in a hot quasar-driven wind.

AB - We present observations of extended, 20 kpc scale soft X-ray gas around a luminous obscured quasar hosted by an ultraluminous infrared galaxy caught in the midst of a major merger. The extended X-ray emission is well fit as a thermal gas with a temperature of kT 280 eV and a luminosity of L X 10 42 erg s-1 and is spatially coincident with a known ionized gas outflow. Based on the X-ray luminosity, a factor of ∼10 fainter than the [O III] emission, we conclude that the X-ray emission is either dominated by photoionization, or by shocked emission from cloud surfaces in a hot quasar-driven wind.

KW - galaxies: active

KW - galaxies: interactions

KW - quasars: general

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DO - 10.1088/0004-637X/788/1/54

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VL - 788

JO - Astrophysical Journal

JF - Astrophysical Journal

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ER -

Extended X-ray emission from a quasar-driven superbubble

Abstract

All Science Journal Classification (ASJC) codes

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