Detection of episodic Ultra-fast Outflows in the Low-luminosity quasar Mrk 205 using XMM -Newton data

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ID: 328142
2026
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Abstract
Abstract Ultra-fast outflows (UFOs) from Active Galactic Nuclei (AGN) are winds which reach velocities up to 0.3c, and show mass outflow rates of 0.01-1 M⊙yr−1 and kinetic energies of 1042 − 45 erg/s. Their extreme properties allow UFOs to carry substantial kinetic power, sufficient to drive AGN feedback by injecting energy and momentum into the interstellar medium, regulating the host galaxy evolution and the supermassive black hole growth. In this work, we present a detailed analysis of XMM-Newton X-ray spectra of the low-luminosity quasar Mrk205. We find evidence of multi-component ultra-fast outflows, traced by two components detected in the high-resolution data, showing velocities in the range of ~0.07c to ~0.1c. In addition, we marginally detected an ultra-fast outflow feature in the Fe K band. According to our analysis, Mrk 205 shows episodes of wind launches, rather than persistent winds. We further discuss whether the energy carried by the UFOs in Mrk 205 is capable of producing significant feedback on its host galaxy.
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Authors César Victoria-Ceballos, A. L. Longinotti, Y. Krongold, G. Lanzuisi, Miriam Gudiño, Armando Lara-DI
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Journal monthly notices of the royal astronomical society
Year 2026
DOI
10.1093/mnras/stag1711
URL
https://doi.org/10.1093/mnras/stag1711
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