266 citations · 574 across the 10 of their papers we have counts for
10 papers
On the Decline of Star Formation during the Evolution of Galaxies
Adelheid Teklu, Rolf-Peter Kudritzki, Klaus Dolag +2
Cosmological simulations predict that during the evolution of galaxies, the specific star formation rate continuously decreases. In a previous study we showed that generally this i…
Planes of Satellite Galaxies in the Magneticum Pathfinder Simulations
Pascal U. Förster, Rhea-Silvia Remus, Klaus Dolag +3
Planes of satellites are observed around many galaxies. However, these observations are still considered a point of tension for the CDM paradigm. We use the fully hydrodynamical…
ΛCDM with baryons vs. MOND: the time evolution of the universal acceleration scale in the Magneticum simulations
Alexander C. Mayer, Adelheid F. Teklu, Klaus Dolag +1
MOdified Newtonian Dynamics (MOND) is an alternative to the standard Cold Dark Matter (CDM) paradigm which proposes an alteration of Newton's laws of motion at low accelerations, c…
Galaxy Lookback Evolution Models -- a Comparison with Magneticum Cosmological Simulations and Observations
Rolf-Peter Kudritzki, Adelheid F. Teklu, Felix Schulze +4
We construct empirical models of star-forming galaxy evolution assuming that individual galaxies evolve along well-known scaling relations between stellar mass, gas mass and star f…
Cosmological simulations of black hole growth II: how (in)significant are merger events for fuelling nuclear activity?
Lisa K. Steinborn, Michaela Hirschmann, Klaus Dolag +5
Which mechanism(s) are mainly driving nuclear activity in the centres of galaxies is a major unsettled question. In this study, we investigate the statistical relevance of galaxy m…
Declining rotation curves at in CDM galaxy formation simulations
Adelheid F. Teklu, Rhea-Silvia Remus, Klaus Dolag +4
Selecting disk galaxies from the cosmological, hydrodynamical simulation Magneticum Pathfinder we show that almost half of our poster child disk galaxies at show significantl…
The Morphology-Density-Relation: Impact on the Satellite Fraction
Adelheid F. Teklu, Rhea-Silvia Remus, Klaus Dolag +1
In the past years several authors studied the abundance of satellites around galaxies in order to better estimate the halo masses of host galaxies. To investigate this connection,…
Origin and properties of dual and offset active galactic nuclei in a cosmological simulation at z=2
Lisa K. Steinborn, Klaus Dolag, Julia M. Comerford +3
In the last few years, it became possible to observationally resolve galaxies with two distinct nuclei in their centre. For separations smaller than 10kpc, dual and offset active g…
Connecting Angular Momentum and Galactic Dynamics: The complex Interplay between Spin, Mass, and Morphology
A. F. Teklu, R. -S. Remus, K. Dolag +5
The evolution and distribution of the angular momentum of dark matter (DM) halos have been discussed in several studies over the past decades. In particular, the idea arose that an…
An improved SPH scheme for cosmological simulations
A. M. Beck, G. Murante, A. Arth +9
We present an implementation of smoothed particle hydrodynamics (SPH) with improved accuracy for simulations of galaxies and the large-scale structure. In particular, we combine, i…