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- W4321763638 abstract "We investigate the formation of brightest cluster galaxies (BCGs) in the TNG300 cosmological simulation of the IllustrisTNG project. Our cluster sample consists of 700 haloes with $M_{200} geq 5 times 10^{13} , mathrm{M}_{odot}$ at $z=0$, along with their progenitors at earlier epochs. This includes 280 systems with $M_{200} geq 10^{14} , mathrm{M}_{odot}$ at $z=0$, as well as three haloes with $M_{200} geq 10^{15} , mathrm{M}_{odot}$. We find that the stellar masses and star formation rates of our simulated BCGs are in good agreement with observations at $z lesssim 0.4$, and that they have experienced, on average, $sim$2 ($sim$3) major mergers since $z=1$ ($z=2$). Separating the BCG from the intracluster light (ICL) by means of a fixed 30 kpc aperture, we find that the fraction of stellar mass contributed by ex situ (i.e. accreted) stars at $z=0$ is approximately 70, 80, and 90 per cent for the BCG, BCG+ICL, and ICL, respectively. Tracking our simulated BCGs back in time using the merger trees, we find that they became dominated by ex situ stars at $z sim $1-2, and that half of the stars that are part of the BCG at $z=0$ formed early ($z sim 3$) in other galaxies, but `assembled' onto the BCG until later times ($z approx 0.8$ for the whole sample, $z approx 0.5$ for BCGs in $M_{200} geq 5 times 10^{14} , mathrm{M}_{odot}$ haloes). Finally, we show that the stellar mass profiles of BCGs are often dominated by ex situ stars at all radii, with stars from major mergers being found closer to the centre, while stars that were tidally stripped from other galaxies dominate the outer regions." @default.
- W4321763638 created "2023-02-25" @default.
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- W4321763638 date "2023-02-24" @default.
- W4321763638 modified "2023-10-15" @default.
- W4321763638 title "The growth of brightest cluster galaxies in the TNG300 simulation: dissecting the contributions from mergers and<i>in situ</i>star formation" @default.
- W4321763638 cites W1494146418 @default.
- W4321763638 cites W1501370474 @default.
- W4321763638 cites W1520258040 @default.
- W4321763638 cites W1656636097 @default.
- W4321763638 cites W1870493012 @default.
- W4321763638 cites W1898645908 @default.
- W4321763638 cites W1911876284 @default.
- W4321763638 cites W1967766027 @default.
- W4321763638 cites W1971642475 @default.
- W4321763638 cites W1975549749 @default.
- W4321763638 cites W1977955565 @default.
- W4321763638 cites W1979104039 @default.
- W4321763638 cites W1981939620 @default.
- W4321763638 cites W1987869097 @default.
- W4321763638 cites W1989207091 @default.
- W4321763638 cites W2015295900 @default.
- W4321763638 cites W2024897607 @default.
- W4321763638 cites W2026545869 @default.
- W4321763638 cites W2028247403 @default.
- W4321763638 cites W2032469582 @default.
- W4321763638 cites W2035936423 @default.
- W4321763638 cites W2042561599 @default.
- W4321763638 cites W2057972377 @default.
- W4321763638 cites W2059302115 @default.
- W4321763638 cites W2064354199 @default.
- W4321763638 cites W2073424199 @default.
- W4321763638 cites W2077638172 @default.
- W4321763638 cites W2078506508 @default.
- W4321763638 cites W2090046995 @default.
- W4321763638 cites W2105176052 @default.
- W4321763638 cites W2109146631 @default.
- W4321763638 cites W2118950764 @default.
- W4321763638 cites W2119131940 @default.
- W4321763638 cites W2141709306 @default.
- W4321763638 cites W2146682239 @default.
- W4321763638 cites W2160197565 @default.
- W4321763638 cites W2171661823 @default.
- W4321763638 cites W2185926565 @default.
- W4321763638 cites W2204815181 @default.
- W4321763638 cites W2267863027 @default.
- W4321763638 cites W2274216743 @default.
- W4321763638 cites W2384834331 @default.
- W4321763638 cites W2410976049 @default.
- W4321763638 cites W2468373122 @default.
- W4321763638 cites W2524618357 @default.
- W4321763638 cites W2529434142 @default.
- W4321763638 cites W2597801633 @default.
- W4321763638 cites W2600163159 @default.
- W4321763638 cites W2600809717 @default.
- W4321763638 cites W2604575963 @default.
- W4321763638 cites W2734538553 @default.
- W4321763638 cites W2735189638 @default.
- W4321763638 cites W2735395126 @default.
- W4321763638 cites W2735531560 @default.
- W4321763638 cites W2735710795 @default.
- W4321763638 cites W2738419119 @default.
- W4321763638 cites W2762973268 @default.
- W4321763638 cites W2766606513 @default.
- W4321763638 cites W2791265689 @default.
- W4321763638 cites W2807098019 @default.
- W4321763638 cites W2892039870 @default.
- W4321763638 cites W2892491878 @default.
- W4321763638 cites W2904186977 @default.
- W4321763638 cites W2904968505 @default.
- W4321763638 cites W2914474079 @default.
- W4321763638 cites W2953228579 @default.
- W4321763638 cites W2970202019 @default.
- W4321763638 cites W2989695005 @default.
- W4321763638 cites W2990922158 @default.
- W4321763638 cites W3007169950 @default.
- W4321763638 cites W3011947970 @default.
- W4321763638 cites W3016431105 @default.
- W4321763638 cites W3046243396 @default.
- W4321763638 cites W3046528722 @default.
- W4321763638 cites W3046893667 @default.
- W4321763638 cites W3089394337 @default.
- W4321763638 cites W3098156859 @default.
- W4321763638 cites W3098796063 @default.
- W4321763638 cites W3099020958 @default.
- W4321763638 cites W3099122631 @default.
- W4321763638 cites W3100024326 @default.
- W4321763638 cites W3100199134 @default.
- W4321763638 cites W3100646037 @default.
- W4321763638 cites W3101374472 @default.
- W4321763638 cites W3101926670 @default.
- W4321763638 cites W3102406364 @default.