Juráňová, A.A.JuráňováWerner, N.N.WernerGASPARI, MASSIMOMASSIMOGASPARILakhchaura, K.K.LakhchauraNulsen, P. E. J.P. E. J.NulsenSun, M.M.SunCanning, R. E. A.R. E. A.CanningAllen, S. W.S. W.AllenSimionescu, A.A.SimionescuOonk, J. B. R.J. B. R.OonkConnor, T.T.ConnorDonahue, M.M.Donahue2020-12-282020-12-2820190035-8711http://hdl.handle.net/20.500.12386/29240The relative importance of the physical processes shaping the thermodynamics of the hot gas permeating rotating, massive early-type galaxies is expected to be different from that in non-rotating systems. Here, we report the results of the analysis of XMM-Newton data for the massive, lenticular galaxy NGC 7049. The galaxy harbours a dusty disc of cool gas and is surrounded by an extended hot X-ray emitting gaseous atmosphere with unusually high central entropy. The hot gas in the plane of rotation of the cool dusty disc has a multitemperature structure, consistent with ongoing cooling. We conclude that the rotational support of the hot gas is likely capable of altering the multiphase condensation regardless of the t_cool/t_ff ratio, which is here relatively high, ∼40. However, the measured ratio of cooling time and eddy turnover time around unity (C-ratio ≈ 1) implies significant condensation, and at the same time, the constrained ratio of rotational velocity and the velocity dispersion (turbulent Taylor number) Ta_t > 1 indicates that the condensing gas should follow non-radial orbits forming a disc instead of filaments. This is in agreement with hydrodynamical simulations of massive rotating galaxies predicting a similarly extended multiphase disc.STAMPAenArticle10.1093/mnras/stz1852-s2.0-85063379373000462302600104https://academic.oup.com/mnras/article/484/2/2886/52903332019MNRAS.484.2886JFIS/05 - ASTRONOMIA E ASTROFISICA