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- W4225553097 abstract "Although active galactic nuclei (AGN) feedback is required in simulations of galaxies to regulate star formation, further downstream effects on the dark matter distribution of the halo and stellar kinematics of the central galaxy can be expected. We combine simulations of galaxies with and without AGN physics from the Numerical Investigation of a Hundred Astrophysical Objects (NIHAO) to investigate the effect of AGN on the dark matter profile and central stellar rotation of the host galaxies. Specifically, we study how the concentration-halo mass ($c-M$) relation and the stellar spin parameter ($lambda_R$) are affected by AGN feedback. We find that AGN physics is crucial to reduce the central density of simulated massive ($gtrsim 10^{12}$ M$_odot$) galaxies and bring their concentration to agreement with results from the Spitzer Photometry & Accurate Rotation Curves (SPARC) sample. Similarly, AGN feedback has a key role in reproducing the dichotomy between slow and fast rotators as observed by the ATLAS$^{3text{D}}$ survey. Without star formation suppression due to AGN feedback, the number of fast rotators strongly exceeds the observational constraints. Our study shows that there are several collateral effects that support the importance of AGN feedback in galaxy formation, and these effects can be used to constrain its implementation in numerical simulations." @default.
- W4225553097 created "2022-05-05" @default.
- W4225553097 creator A5006999794 @default.
- W4225553097 creator A5024330374 @default.
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- W4225553097 creator A5057292816 @default.
- W4225553097 creator A5074734292 @default.
- W4225553097 creator A5084693803 @default.
- W4225553097 date "2022-05-02" @default.
- W4225553097 modified "2023-10-16" @default.
- W4225553097 title "NIHAO – XXVIII. Collateral effects of AGN on dark matter concentration and stellar kinematics" @default.
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