367 citations · 3.9k across the 78 of their papers we have counts for
57 papers · 1 filter
Simulating realistic radio morphologies of Fanaroff-Riley I jets in a self-regulating cool-core cluster
Léna Jlassi, Rainer Weinberger, Christoph Pfrommer +3
Active galactic nucleus (AGN) jets radiate radio synchrotron emission displaying a wide range of morphologies. At the same time, they provide heat to prevent cooling flows in cool-…
Revisiting radio synchrotron diagnostics in star-forming galaxies
Maria Werhahn, Christoph Pfrommer, Philipp Girichidis +7
Radio continuum observations are widely used to study cosmic ray (CR) electron populations and transport processes in star-forming galaxies, but their interpretation relies on seve…
ALMA Central Molecular Zone Exploration Survey (ACES) I: Overview
Steven N. Longmore, John Bally, Ashley T. Barnes +95
The mass flows and energy cycles within the inner regions of galaxies exert a powerful influence on the evolution of the galaxy population. The centre of the Milky Way is the only…
Simulating cosmic ray electron spectra and radio emission from an AGN jet outburst in a cool-core cluster
Léna Jlassi, Rainer Weinberger, Christoph Pfrommer +3
Active galactic nucleus (AGN) powered jets can accelerate cosmic ray electrons, leading to the observed radio synchrotron emission. To simulate this emission, jet dynamics in galax…
How is cold, star-forming gas in galaxies affected by magnetic fields?
Kamran R. J. Bogue, Rowan J. Smith, Robin G. Tress +9
Numerical simulations provide a unique opportunity to improve our understanding of the role of magnetic fields in the interstellar medium of galaxies and in star formation. However…
Rhea-RT: Dynamical impact of Central Molecular Zone conditions on the properties of the interstellar medium and stellar feedback coupling
R. G. Tress, N. Brucy, P. Girichidis +22
The Central Molecular Zone (CMZ) is an extreme star formation environment, characterized by higher density, higher turbulence, stronger orbital shear, and stronger magnetic field s…
Steady-State or Not? The Evolution of Cosmic Ray Electron Spectra in Galaxies
Maria Werhahn, Christoph Pfrommer, Joseph Whittingham +4
Cosmic ray (CR) electrons are key tracers of non-thermal processes in galaxies, yet their spectra are often modelled under the untested assumption of steady state between injection…
SILCC -- IX. The multi-phase interstellar medium at low metallicity
Vittoria Brugaletta, Stefanie Walch, Thorsten Naab +8
The gas-phase metallicity affects heating and cooling processes in the star-forming galactic interstellar medium (ISM) as well as ionising luminosities, wind strengths, and lifetim…
Modeling Local Bubble analogs II: Synthetic Faraday rotation maps
Efrem Maconi, Stefan Reissl, Juan D. Soler +4
Faraday rotation describes the change of the linear polarization angle of radiation passing through a magnetized plasma and it is quantified by the rotation measure (RM), which is…
The role of turbulence in setting the phase of the ISM and implications for the star formation rate
Tine Colman, Patrick Hennebelle, Noé Brucy +10
In this work, we explore the link between star formation, turbulence and the thermal state of the multi-phase ISM. We analyse a suite of stratified box simulations modelling a real…
Introducing the Rhea simulations of Milky-Way-like galaxies I: Effect of gravitational potential on morphology and star formation
Junia Göller, Philipp Girichidis, Noé Brucy +11
The Milky Way is a complex ecosystem, for which we can obtain detailed observations probing the physical mechanisms determining the interstellar medium. For a detailed comparison w…
The dynamical impact of cosmic rays in the Rhea magnetohydrodynamics simulations
Karin Kjellgren, Philipp Girichidis, Junia Göoller +10
This study explores the dynamical impact of cosmic rays (CRs) in Milky Way-like galaxies using the Rhea simulation suite. Cosmic rays, with their substantial energy density, influe…
The impact of cosmic ray heating on the cooling of the low-metallicity interstellar medium
Vittoria Brugaletta, Stefanie Walch, Thorsten Naab +6
Low-metallicity environments are subject to inefficient cooling. They also have low dust-to-gas ratios and therefore less efficient photoelectric (PE) heating than in solar-neighbo…
IllustrisTNG + Cosmic Rays with a Simple Transport Model: From Dwarfs to L Galaxies
Rahul Ramesh, Dylan Nelson, Philipp Girichidis
We use a simple model for cosmic ray (CR) production and transport to assess the impact of CRs on \,\, galaxy, circumgalactic medium (CGM), and halo properties. To do so,…
On the relation between magnetic field strength and gas density in the interstellar medium: A multiscale analysis
D. J. Whitworth, S. Srinivasan, R. E. Pudritz +19
The magnetic field strength to gas density relation in the interstellar medium is of fundamental importance. We present and compare Bayesian analyses of the B-n relation for two co…
Testing kinematic distances under a realistic Galactic potential
Glen H. Hunter, Mattia C. Sormani, Jan P. Beckmann +15
Obtaining reliable distance estimates to gas clouds within the Milky Way is challenging in the absence of certain tracers. The kinematic distance approach has been used as an alter…
Magnetic field morphology and evolution in the Central Molecular Zone and its effect on gas dynamics
R. G. Tress, M. C. Sormani, P. Girichidis +34
The interstellar medium in the Milky Way's Central Molecular Zone (CMZ) is known to be strongly magnetised, but its large-scale morphology and impact on the gas dynamics are not we…
Cloud properties across spatial scales in simulations of the interstellar medium
Tine Colman, Noé Brucy, Philipp Girichidis +9
Molecular clouds (MC) are structures of dense gas in the interstellar medium (ISM), that extend from ten to a few hundred parsecs and form the main gas reservoir available for star…
Multiple power-law tails in the density and column-density distribution in contracting star-forming clumps
Todor V. Veltchev, Philipp Girichidis, Lyubov Marinkova +3
We present a numerical study of the evolution of power-law tails (PLTs) in the (column-)density distributions (-PDF, -PDF) in contracting star-forming clumps in primordial ga…
Spectrally resolved cosmic rays -- III. Dynamical impact and properties of the circumgalactic medium
Philipp Girichidis, Maria Werhahn, Christoph Pfrommer +2
Cosmic rays (CRs) are dynamically important for the formation and evolution of galaxies by regulating star formation and by powering galactic outflows. However, to what extent CRs…
Synthetic dust polarization emission maps at 353 GHz for an observer placed inside a Local Bubble-like cavity
E. Maconi, J. D. Soler, S. Reissl +10
We present a study of synthetic observations of polarized dust emission at 353 GHz as seen by an observer within a cavity in the interstellar medium (ISM). The cavity is selected f…
SILCC VII -- Gas kinematics and multiphase outflows of the simulated ISM at high gas surface densities
Tim-Eric Rathjen, Thorsten Naab, Stefanie Walch +3
We present magnetohydrodynamic (MHD) simulations of the star-forming multiphase interstellar medium (ISM) in stratified galactic patches with gas surface densities $Σ_\mathrm{gas}…
Escaping the maze: a statistical sub-grid model for cloud-scale density structures in the interstellar medium
Tobias Buck, Christoph Pfrommer, Philipp Girichidis +1
The interstellar medium (ISM) is a turbulent, highly structured multi-phase medium. State-of-the-art cosmological simulations of the formation of galactic discs usually lack the re…
Rotation measure and synchrotron emission signatures in simulations of magnetized galactic discs
Yoan Rappaz, Jennifer Schober, Philipp Girichidis
We analyse observational signatures of magnetic fields for simulations of a Milky-Way like disc with supernova-driven interstellar turbulence and self-consistent chemical processes…