Ultraluminous quasars at redshift 5 reveal rapid black hole growth
Published on:
9 November 2023
Primary Category:
Astrophysics of Galaxies
Paper Authors:
Samuel Lai,
Christopher Onken,
Christian Wolf,
Fuyan Bian,
Xiaohui Fan
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Key Details
XQz5 contains 83 of the brightest known quasars at redshift 4.5-5.3
Their black hole masses and growth rates were measured from spectra
The black holes are more massive than matched lower redshift quasars
This indicates very rapid growth shortly after the Big Bang
The data enables many studies of early black hole and galaxy evolution
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AI generated summary
Ultraluminous quasars at redshift 5 reveal rapid black hole growth
This study presents XQz5, a sample of 83 very bright quasars with redshifts between 4.5 and 5.3. Their spectra were analyzed to measure properties of the supermassive black holes powering them. Comparisons to other samples show these black holes grew very rapidly in the early universe.
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