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- W3208083721 endingPage "015010" @default.
- W3208083721 startingPage "015010" @default.
- W3208083721 abstract "The coevolution between supermassive black holes (SMBHs) and their host galaxies has been proposed for more than a decade, albeit with little direct evidence about black hole accretion activities regulating galaxy star formation at $z>1$. In this paper, we study the lifetimes of X-ray active galactic nuclei (AGNs) in $UV$-selected red sequence (RS), blue cloud (BC) and green valley (GV) galaxies, finding that AGN accretion activities are most prominent in GV galaxies at $zsim1.5-2$, compared with RS and BC galaxies. We also compare AGN accretion timescales with typical color transition timescales of $UV$-selected galaxies. We find that the lifetime of GV galaxies at $zsim1.5-2$ is very close to the typical timescale when the AGNs residing in them stay in the high-accretion-rate mode at these redshifts; for BC galaxies, the consistency between the color transition timescale and the black hole strong accretion lifetime is more likely to happen at lower redshifts ($z<1$). Our results support the scenario where AGN accretion activities govern $UV$ color transitions of host galaxies, making galaxies and their central SMBHs coevolve with each other." @default.
- W3208083721 created "2021-11-08" @default.
- W3208083721 creator A5002752849 @default.
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- W3208083721 creator A5033353788 @default.
- W3208083721 creator A5073919190 @default.
- W3208083721 creator A5075955548 @default.
- W3208083721 date "2022-01-01" @default.
- W3208083721 modified "2023-09-23" @default.
- W3208083721 title "AGN Lifetimes in UV-selected Galaxies: A Clue to Supermassive Black Hole-galaxy Coevolution" @default.
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