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Krongold, Y.; Longinotti, A. L.; Santos-Lleó, M.; Mathur, S.; Peterson, B. M.; Nicastro, F.; Gupta, A.; Rodríguez-Pascual, P.; Elías-Chávez, M.
Astrophysical journal/The Astrophysical journal, 08/2021, Letnik: 917, Številka: 1Journal Article
Abstract We present a detailed analysis of XMM-Newton X-ray spectra of the Narrow-Line Seyfert 1 galaxy Mrk 1044. We find robust evidence for a multiphase, ultrafast outflow, traced by four separate components in the grating spectrum. One component has high column density and ionization state, and is outflowing at ∼0.15 c . The other three wind components have lower temperature, lower column density, and have outflow velocities ∼0.08 c . This wind structure is strikingly similar to that found in IRAS 17020+4544, suggesting that stratified winds may be a common feature of ultrafast outflows. Such structure is likely produced by fluid instabilities that form when the nuclear wind shocks the ambient medium. We show that, in an energy-driven wind scenario, the wind in Mrk 1044 might carry enough energy to produce significant feedback on its host galaxy. We further discuss the implications of the presence of a fast wind in yet another NLS1 galaxy with high Eddington ratio.
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