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Dormant supermassive black hole in early universe galaxy

Published on:

6 March 2024

Primary Category:

Astrophysics of Galaxies

Paper Authors:

Ignas Juodžbalis,

Roberto Maiolino,

William M. Baker,

Sandro Tacchella,

Jan Scholtz,

Francesco D'Eugenio,

Raffaella Schneider,

Alessandro Trinca,

Rosa Valiante,

Christa DeCoursey,

Mirko Curti,

Stefano Carniani,

Jacopo Chevallard,

Anna de Graaff,

Santiago Arribas,

Jake S. Bennett,

Martin A. Bourne,

Andrew J. Bunker,

Stéphane Charlot,

Brian Jiang,

Sophie Koudmani,

Michele Perna,

Brant Robertson,

Debora Sijacki,

Hannah Übler,

Christina C. Williams,

Chris Willott,

Joris Witstok

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Key Details

Supermassive black hole detected in z=6.68 galaxy

Black hole mass 4 x 10^8 solar masses

Accreting at only 2% of Eddington limit

Host galaxy has low star formation rate

Black hole over 1000x more massive than expected

AI generated summary

Dormant supermassive black hole in early universe galaxy

The paper reports the detection of a 4 x 10^8 solar mass supermassive black hole in a galaxy at redshift 6.68, accreting at only 2% the Eddington limit. The host galaxy has a low star formation rate and the black hole is over 1000 times more massive than expected from local black hole/galaxy relations. This suggests past bursts of super-Eddington accretion, with the black hole now in a dormant state.

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