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SUMMARY:Star Formation at the Epoch of Reionisation under the Cosmic Micro
 scope - Prof. Maruša Bradač 
DTSTART:20251016T150000Z
DTEND:20251016T160000Z
UID:TALK236650@talks.cam.ac.uk
CONTACT:Jan Scholtz
DESCRIPTION:How did galaxies start forming stars? What are the conditions 
 in typical low-mass\, star-forming galaxies at z~8 and above? Recent obser
 vations with JWST indicate several critical puzzles in studies that addres
 s these questions. Chief among these\, galaxies started forming stars earl
 y and possibly at an extraordinary rate and in more compact clumps than pr
 eviously thought. I will present the latest results from the JWST Bullet C
 luster observations\, which we will use to measure the properties of dark 
 matter. I will also show the discovery of a highly magnified z=11 lensed a
 rc. The intrinsic luminosity of the galaxy is 0.05L*\, making it the lowes
 t luminosity spectroscopically confirmed galaxy at z>10 discovered to date
 . The galaxy contains three star-forming components with sizes of <10 pars
 ecs. I will also present the newest results on the curious cases of the Fi
 refly Sparkle\, a z=8.6 galaxy that shows ~10 remarkably compact globular-
 cluster-like clumps and spectroscopically confirmed Little Red Dots with s
 trong AGN signatures. All these results allow the detailed studies of star
  formation at sub-10pc scales at the epoch of reionisation.
LOCATION:Hoyle Lecture Theatre\, Institute of Astronomy
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