TY - JOUR
KW - Space and Planetary Science
KW - Astronomy and Astrophysics
AU - Joseph Silk
AU - Mitchell Begelman
AU - Colin Norman
AU - Adi Nusser
AU - Rosemary Wyse
AB - <p><jats:p>Insights from JWST observations suggest that active galactic nuclei feedback evolved from a short-lived, high-redshift phase in which radiatively cooled turbulence and/or momentum-conserving outflows stimulated vigorous early star formation (“positive” feedback), to late, energy-conserving outflows that depleted halo gas reservoirs and quenched star formation. The transition between these two regimes occurred at <jats:italic>z</jats:italic> ∼ 6, independently of galaxy mass, for simple assumptions about the outflows and star formation process. Observational predictions provide circumstantial evidence for the prevalence of massive black holes at the highest redshifts hitherto observed, and we discuss their origins.</jats:p></p>

BT - The Astrophysical Journal Letters
DA - 2024-01
DO - 10.3847/2041-8213/ad1bf0
IS - 2
N2 - <p><jats:p>Insights from JWST observations suggest that active galactic nuclei feedback evolved from a short-lived, high-redshift phase in which radiatively cooled turbulence and/or momentum-conserving outflows stimulated vigorous early star formation (“positive” feedback), to late, energy-conserving outflows that depleted halo gas reservoirs and quenched star formation. The transition between these two regimes occurred at <jats:italic>z</jats:italic> ∼ 6, independently of galaxy mass, for simple assumptions about the outflows and star formation process. Observational predictions provide circumstantial evidence for the prevalence of massive black holes at the highest redshifts hitherto observed, and we discuss their origins.</jats:p></p>

PB - American Astronomical Society
PY - 2024
EP - L39
T2 - The Astrophysical Journal Letters
TI - Which Came First: Supermassive Black Holes or Galaxies? Insights from JWST
VL - 961
SN - 2041-8205, 2041-8213
ER -