Self-consistent spherical accretion simulations show cooling-enhanced growth of PBHs with radiative efficiency ~10^{-2} in the bremsstrahlung regime, yielding a critical seed mass of ~10^{-16} M_sun to consume a solar-mass star in a Hubble time.
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JWST observations of ERQs show stratified gas kinematics via deblended optical emission lines, with UV lines dominated by scattered light and optical lines mixing scattered and obscured emission.
Analysis of ZTF data shows BL Lacs with BWB color trend at 14.7% vs 2.3% RWB, FSRQs with 8.8% BWB vs 14.1% RWB, and brighter states more likely to show BWB, with variability amplitude correlating differently by type.
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Kinematic Stratification in Extremely Red Quasars Revealed by JWST
JWST observations of ERQs show stratified gas kinematics via deblended optical emission lines, with UV lines dominated by scattered light and optical lines mixing scattered and obscured emission.
- Optical Variability Structure Function of Low-Luminosity AGN using ATLAS Lightcurves