linkedin post 2021-06-28 04:09:54

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GALAXY EVOLUTION. “It is now well known that the evolutionary history of observable galaxies also follows an ‘antihierarchical’ or downsizing behaviour, with several independent observational indicators suggesting that more massive galaxies formed their stars and had their star formation ‘quenched’ earlier than low-mass galaxies, which continue forming stars to the present day.” https://lnkd.in/d9JV8md View in LinkedIn
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linkedin post 2021-06-28 04:04:46

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BLACK HOLE DISTRIBUTION. “This “would imply that very massive BHs seem to be already in place at very early times, whereas less massive BHs seem to evolve predominantly at lower redshifts. This behaviour is called ‘downsizing’ or ‘antihierarchical’ growth of BHs.” (BH = black hole). https://lnkd.in/d9JV8md View in LinkedIn
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linkedin post 2021-07-01 04:18:56

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FEEDBACK LOOP. “In our model, the gas content of massive galaxies is strongly dependent on the radio-mode AGN feedback, which suppresses cooling in massive haloes at low redshift. Low cold gas fractions may retard the loss of angular momentum due to smaller viscosity and thus, the cold gas flow on to the central BH may be suppressed.” (BH = black hole; AGN = active galactic nuclei). https://lnkd.in/d9JV8md View in LinkedIn
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linkedin post 2021-07-01 04:17:50

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GORGING. “The BH-to-bulge mass ratio was larger at higher redshifts than expected from the local BH–bulge mass relation. This eventually implies that BHs were accreting more gas and thus, growing faster than the corresponding bulges at high redshifts than at lower ones.” (BH = black hole). https://lnkd.in/d9JV8md View in LinkedIn
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