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

collaborators

8 papers

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.CO2023

Baryon-photon interactions in Resummed Kinetic Field Theory

Ivan Kostyuk, Robert Lilow, Matthias Bartelmann

We explore how interactions between baryons and photons can be incorporated into Kinetic Field Theory (KFT), a description of cosmic structure formation based on classical Hamilton…

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…

astro-ph.CO2020★ 4 cited

Resummed Kinetic Field Theory: a model of coupled baryonic and dark matter

Daniel Geiss, Ivan Kostyuk, Robert Lilow +1

We present a new analytical description of cosmic structure formation in a mixture of dark and baryonic matter, using the framework of Kinetic Field Theory (KFT) -- a statistical f…

astro-ph.CO2019★ 31 cited

Cosmic Structure Formation with Kinetic Field Theory

Matthias Bartelmann, Elena Kozlikin, Robert Lilow +7

Kinetic Field Theory (KFT) is a statistical field theory for an ensemble of point-like classical particles in or out of equilibrium. We review its application to cosmological struc…