Extended X-ray Emission From a Quasar-Driven Superbubble
| Autor: | Julia M. Comerford, Ai-Lei Sun, Jenny E. Greene, David Pooley, Nadia L. Zakamska |
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| Rok vydání: | 2014 |
| Předmět: |
Physics
Cosmology and Nongalactic Astrophysics (astro-ph.CO) Infrared Astrophysics::High Energy Astrophysical Phenomena Doubly ionized oxygen FOS: Physical sciences Astronomy and Astrophysics Superbubble Quasar Astrophysics Photoionization Astrophysics::Cosmology and Extragalactic Astrophysics Astrophysics - Astrophysics of Galaxies Galaxy Luminosity Space and Planetary Science Ionization Astrophysics of Galaxies (astro-ph.GA) Astrophysics::Solar and Stellar Astrophysics Astrophysics::Galaxy Astrophysics Astrophysics - Cosmology and Nongalactic Astrophysics |
| DOI: | 10.48550/arxiv.1404.4875 |
| Popis: | We present observations of extended, 20-kpc scale soft X-ray gas around a luminous obscured quasar hosted by an ultra-luminous 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 and is spatially coincident with a known ionized gas outflow. Based on the X-ray luminosity, a factor of ~10 fainter than the [OIII] 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. Comment: Accepted for publication in ApJ, 6 pages, 2 figures |
| Databáze: | OpenAIRE |
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