Group Leader
Prof. Dr. Stefanie Walch-Gassner
Main research interest: 3D computer simulations of star formation, stellar feedback, turbulence, physics of the interstellar medium (ISM), gas cycle in galaxies. Affiliated to I. Physikalisches Institute, Universität zu Köln.
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Postdoctoral Researchers
Dr. Thomas Bisbas
Fellowship of the German Science Foundation (DFG)
Synthetic observations, 3D-PDR, $HI-H_2$ transition, tracking molecular Hydrogen, numerical simulations of star formation and feedback
Dr. Seamus Clarke
My research focuses on using hydrodynamic simulations to study how the diffuse gas of the Interstellar medium (ISM) is able to condense into filaments and cores, leading to the formation of stars. I'm especially interested in the interplay between gravity and turbulence in dense gas filaments and the role this has on fragmentation. I am also interested in the chemical evolution of the ISM as gas moves from the diffuse gas into dense cores, and how this influences how these structures are seen when observed with dust and molecular line tracers.
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Dr. Frantisek Dinnbier
3D AMR hydrodynamic models of feedback from massive stars (ionising radiation, supernovae, stellar winds)
Modelling sink particles in AMR codes
Gravitational fragmentation of gaseous shells
Dynamics of young star clusters
Dr. Daniel Seifried
Main research interest: Present day star formation (magnetic fields, protostellar disks and outflows, star forming filaments, molecular cloud formation), synthetic observations, interstellar turbulence, primordial star formation, astrochemistry (KROME), high performance computing.
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Dr. Dorottya Szecsi
Alexander von Humboldt fellow
Stellar evolution of massive single and binary stars, low metallicity environments and high energy explosions including gamma ray bursts and gravitational wave sources
PhD Students
Timothy Crundall
High performance computing
Development of a novel discontinuous Galerkin code for star formation and other astrophysical applications
Gravity and radiative transfer
Tree codes
Shashwata Ganguly
Star formation in deep-zoom simulations:
massive star formation and stellar feedback in filamentary hubs
Andre Klepitko
Radiation pressure on dust and gas
Massive star formation in dense molecular clouds
Johannes Markert
(Klaus-Tschira project, collaboration with Prof. Gassner, Math. institute, UoC)
High performance computing
Development of a novel Discontinuous Galerkin code for star formation and other astrophysical applications
Marco Panessa
(PhD student within SFB956/C6 of Daniel Seifried)
Deuteration in molecular clouds:
what advanced chemical tracers tell us about the lifetime of molecular clouds
Paul Rohde
Low-mass star formation
Episodic protostellar outflows
SPH simulations with Gandalf
Master and Bachelor Students
Thorsten Balduin
Synthetic dust emission maps using POLARIS
Elisabeth Borchert
Post-processing of 3D SILCC zoom-in simulations with RADMC-3D
Synthetic CO line emission maps
Laura Manns
Simulations of colliding molecular clouds with SPH code GANDALF
Sebastian Vider
Magnetized pillars of creation:
3D simulations of turbulent, magnetized ionization fronts with FLASH
Michael Weis
MHD simulations of colliding gas flows
Molecular cloud formation
Christina Clauß
Towards a subgrid model for the chemical evolution of the ISM
Pierre Nürnberger
Analysis of synthetic CO emission maps from SILCC siumlations
Former members
Dr. Dominik Derigs (PhD, 2018)
Dr. Annika Franeck (PhD, 2018)
Dr. Andrea Gatto (PhD, 2017)
Dr. Sebastian Haid (PhD, 2018)
Dr. Juan Ibanez-Mejia (postdoctoral researcher until December, 2018)
Dr. Prabesh Joshi (PhD, 2019)
Dr. Jonathan Mackey (now Dublin institute of Advanced Studies, Ireland)
Dr. Johanna Malinen (postdoctoral researcher until September, 2018)
Tim-Eric Rathjen (MSc. 2017, now PhD student at MPA Garching, Germany)


This work is supported by
SFB 956 Cologne Bonn project C5
ERC Starting Grant 679852 'The Radiative Interstellar Medium'
The DFG Priority Programme 1573 'Physics of the ISM'
Leibniz-Rechenzentrum Garching
Gauss Center for Supercomputing:
Link to a short project description on the GCS site
Max Planck Computing and Data Facility (MPCDF)