A direct, dynamical black-hole mass measurement in a strongly lensed little red dot at high redshift indicates that it is a massive black-hole seed caught in its earliest accretion phase.
Article
Open access
Ignas Juodžbalis
ORCID: orcid.org/0009-0003-7423-86601,2, Cosimo Marconcini
ORCID: orcid.org/0000-0002-3194-54163,4, Francesco D’Eugenio
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