Vasily Kokorev
4 papers ยท Latest:
Galaxies & Cosmology
Using Ly$ฮฑ$ Transmitted Spectrum to Probe IGM Transmission and Identify Ionized Structures in Cosmic Reionization
This paper uses JWST/NIRSpec to measure intergalactic medium transmission and identify a large ionized bubble during cosmic reionization.
2605.02539
Galaxies & CosmologyTwo Exciting High-redshift Galaxy Candidates Turn Out to Be Two Exciting Ultra-cool Brown Dwarfs
Two high-redshift galaxy candidates observed by JWST were reclassified as ultra-cool brown dwarfs, highlighting potential contamination in deep surveys.
2604.23668
Galaxies & CosmologyDeepDive: Simultaneous Formation of Massive Quiescent Galaxies in High-Redshift Galaxy Proto-clusters
JWST confirms massive quiescent galaxy overdensities in the early universe, suggesting simultaneous quenching driven by large-scale structure and AGN feedback.
2604.21007
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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