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- W2965728443 abstract "Abstract Recently, Sloan Digital Sky Survey successfully carried out the reverberation mapping of a sky area, aiming to test the R − L relation that has been already widely used. Here, R is the responsivity-weighted radius of the broad line region, and L is the optical luminosity at 5100 A. Two results have been obtained from the data in the first year: (1) The time lags of AGNs (Active Galactic Nuclei) with a high accretion rate are much shorter than that estimated from the R − L relation, which confirmed the results of reverberation mapping observations made by the Lijiang 2.4 meter telescope. (2) Some AGNs with a lower accretion rate also have very short time lags. The shortening of the time lags of the AGNs with a low accretion rate is caused by the retrograde accretion of black holes. This result has verified from observations the theoretical prediction made by Wang et al. (2014). The discovery of the black holes with a retrograde accretion has important significance, it indicates that the cosmological evolution of the black holes in quasars is implemented via the inherently random accretion." @default.
- W2965728443 created "2019-08-13" @default.
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- W2965728443 date "2019-04-01" @default.
- W2965728443 modified "2023-09-23" @default.
- W2965728443 title "Evidence for the Retrograde Accretion onto Supermassive Black Holestwo" @default.
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- W2965728443 doi "https://doi.org/10.1016/j.chinastron.2019.04.005" @default.
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