144 citations · 1.7k across the 34 of their papers we have counts for
16 papers · 1 filter
A survey of high- galaxies: SERRA simulations
A. Pallottini, A. Ferrara, S. Gallerani +10
We introduce SERRA, a suite of zoom-in high-resolution () cosmological simulations including non-equilibrium chemistry and on-the-fly radiative transfer. The outpu…
Infrared emission of galaxies: AGN imprints
F. Di Mascia, S. Gallerani, C. Behrens +6
We investigate the infrared (IR) emission of high-redshift (), highly star-forming ( ) galaxies, with/without Active Galac…
Velocity dispersion in the interstellar medium of early galaxies
M. Kohandel, A. Pallottini, A. Ferrara +5
We study the structure of spatially resolved, line-of-sight velocity dispersion for galaxies in the Epoch of Reionization (EoR) traced by [CII] line emission. Our labo…
Early galaxy growth: mergers or gravitational instability?
A. Zanella, A. Pallottini, A. Ferrara +4
We investigate the spatially-resolved morphology of galaxies in the early Universe. We consider a typical redshift z = 6 Lyman Break galaxy, "Althaea" from the SERRA hydrodynamical…
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…
A random-walk model for dark matter halo spins
Andrew Benson, Christoph Behrens, Yu Lu
We extend the random-walk model of Vitvitska et al. for predicting the spins of dark matter halos from their merger histories. Using updated merger rates, orbital parameter distrib…
A physical model for [CII] line emission from galaxies
A. Ferrara, L. Vallini, A. Pallottini +5
A tight relation between the [CII]158m line luminosity and star formation rate is measured in local galaxies. At high redshift (), though, a much larger scatter is observed…
A semi-analytical perspective on massive galaxies at
D. Stoppacher, F. Prada, A. D. Montero-Dorta +7
The most massive and luminous galaxies in the Universe serve as powerful probes to study the formation of structure, the assembly of mass, and cosmology. However, their detailed fo…
First Identification of 10-kpc Scale [CII] 158um Halos around Star-Forming Galaxies at z=5-7
Seiji Fujimoto, Masami Ouchi, Andrea Ferrara +7
We report the discovery of 10-kpc scale [CII] 158um halos surrounding star-forming galaxies in the early Universe. We choose deep ALMA data of 18 galaxies each with a star-formatio…
MultiDark-Galaxies: data release and first results
Alexander Knebe, Doris Stoppacher, Francisco Prada +18
We present the public release of the MultiDark-Galaxies: three distinct galaxy catalogues derived from one of the Planck cosmology MultiDark simulations (i.e. MDPL2, with a volume…
The impact of Lyman- radiative transfer on large-scale clustering in the Illustris simulation
Christoph Behrens, Chris Byrohl, Shun Saito +1
Lyman- emitters (LAEs) are a promising probe of the large-scale structure at high redshift, . In particular, the Hobby-Eberly Telescope Dark Energy Experiment aims a…
CO line emission from galaxies in the Epoch of Reionization
L. Vallini, A. Pallottini, A. Ferrara +3
We study the CO line luminosity (), the shape of the CO Spectral Line Energy Distribution (SLED), and the value of the CO-to- conversion factor in galaxies in…
Core-halo mass relation of ultralight axion dark matter from merger history
Xiaolong Du, Christoph Behrens, Jens C. Niemeyer +1
In the context of structure formation with ultralight axion dark matter, we offer an alternative explanation for the mass relation of solitonic cores and their host halos observed…
HST Emission Line Galaxies at z ~ 2: Comparing Physical Properties of Lyman Alpha and Optical Emission Line Selected Galaxies
Alex Hagen, Gregory R. Zeimann, Christoph Behrens +14
We compare the physical and morphological properties of z ~ 2 Lyman-alpha emitting galaxies (LAEs) identified in the HETDEX Pilot Survey and narrow band studies with those of z ~ 2…
Inclination Dependence of Lyman-Alpha Properties in a Turbulent Disk Galaxy
Christoph Behrens, Harald Braun
We present simulations of Lyman-Alpha radiation transfer in an isolated disk galaxy with a turbulence sub-grid model, multi-phase interstellar medium and detailed star formation mo…
Beamed Lyman Alpha Emission through Outflow-Driven Cavities
Christoph Behrens, Mark Dijkstra, Jens Niemeyer
We investigate the radiative transfer of Lyman alpha photons through simplified anisotropic gas distributions, which represent physically motivated extensions of the popular 'shell…