activity
20192025
most citedThe physical origins and dominant emission mechanisms of Lyman-alpha halos: results from the TNG50 simulation in comparison to MUSE observations

66 citations · 131 across the 8 of their papers we have counts for

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5 papers · 1 filter

astro-ph.GA2025★ 1 cited

High-Redshift Galactic Outflows: Orientation Effects, Kinematics, and Metallicity in TNG50 and SERRA

Ivan Kostyuk, Stefano Carniani, Mahsa Kohandel +1

Context: Recently, JWST/NIRSpec observations have provided the first detections of warm ionised outflows in low-mass galaxies at high redshifts (z>3), revealing an occurrence rate…

astro-ph.GA2024★ 6 cited

Influence of mergers on LyC escape of high redshift galaxies

Ivan Kostyuk, Benedetta Ciardi

Aims: We investigate the impact of galaxy mergers on the Lyman Continuum (LyC) radiation escape, fesc, from high-redshift galaxies. Methods: We post-process ~ 6e5 galaxies (redshif…

astro-ph.GA2023★ 3 cited

Physically motivated modeling of LyC escape fraction during reionization

Ivan Kostyuk, Benedetta Ciardi, Andrea Ferrara

Aims: We present an analysis of the Lyman continuum (LyC) escape fraction of high redshift galaxies using an analytic post-processing approach. Methods: We apply the model to 600,0…

astro-ph.GA2022★ 20 cited

Ionizing photon production and escape fractions during cosmic reionization in the TNG50 simulation

Ivan Kostyuk, Dylan Nelson, Benedetta Ciardi +2

In this work we investigate the dependence of the escape fraction of ionizing photons, , on various galaxy and host halo properties during the epoch of reionization. W…

astro-ph.GA2020★ 66 cited

The physical origins and dominant emission mechanisms of Lyman-alpha halos: results from the TNG50 simulation in comparison to MUSE observations

Chris Byrohl, Dylan Nelson, Christoph Behrens +6

Extended Lyman-alpha emission is now commonly detected around high redshift galaxies through stacking and even on individual basis. Despite recent observational advances, the physi…