Krongold, Y.Y.KrongoldLonginotti, A. L.A. L.LonginottiSantos-Lleó, M.M.Santos-LleóMathur, S.S.MathurPeterson, B. M.B. M.PetersonNICASTRO, FabrizioFabrizioNICASTROGupta, A.A.GuptaRodríguez-Pascual, P.P.Rodríguez-PascualElías-Chávez, M.M.Elías-Chávez2025-03-122025-03-1220210004-637Xhttp://hdl.handle.net/20.500.12386/36701We 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 ∼0.15c. The other three wind components have lower temperature, lower column density, and have outflow velocities ∼0.08c. 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.STAMPAenArticle10.3847/1538-4357/ac09772-s2.0-85113573255https://api.elsevier.com/content/abstract/scopus_id/85113573255https://iopscience.iop.org/article/10.3847/1538-4357/ac0977FIS/05 - ASTRONOMIA E ASTROFISICAERC sectors::Physical Sciences and Engineering::PE9 Universe sciences: astro-physics/chemistry/biology; solar systems; stellar, galactic and extragalactic astronomy, planetary systems, cosmology, space science, instrumentation