Jorryt Matthee
2 papers · Latest:
Galaxies & Cosmology
Life After the Quasar: Overmassive Black Holes and Remnant Ionised Bubbles in and Around Two z~6.6 Galaxies
JWST reveals two z~6.6 galaxies with overmassive black holes and remnant ionised bubbles, suggesting post-quasar systems where AGN feedback delayed stellar growth.
2605.00763
Galaxies & CosmologyHow I Wonder What You Are -- JWST's Little Red Dots do not TWINKLE
JWST's TWINKLE program found no variability in "Little Red Dots," challenging assumptions about their central engines and black hole accretion.
2604.13000
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