984 citations · 7.4k across the 98 of their papers we have counts for
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Ray-tracing and polarized radiative transfer in General Relativity
Pauli Pihajoki, Antti Rantala, Peter H. Johansson
We discuss the problem of polarized radiative transfer in general relativity. We present a set of equations suitable for solving the problem numerically for the case of an arbitrar…
Post-Newtonian dynamical modeling of supermassive black holes in galactic-scale simulations
Antti Rantala, Pauli Pihajoki, Peter H. Johansson +3
We present KETJU, a new extension of the widely-used smoothed particle hydrodynamics simulation code GADGET-3. The key feature of the code is the inclusion of algorithmically regul…
Shaken and Stirred: The Milky Way's Dark Substructures
Till Sawala, Pauli Pihajoki, Peter H. Johansson +4
The predicted abundance and properties of the low-mass substructures embedded inside larger dark matter haloes differ sharply among alternative dark matter models. Too small to hos…
Positive or Negative? The Impact of X-ray Feedback on the Formation of Direct Collapse Black Hole Seeds
John A. Regan, Peter H. Johansson, John H. Wise
A nearby source of Lyman-Werner (LW) photons is thought to be a central component in dissociating H and allowing for the formation of a direct collapse black hole seed. Nearby…
The Co-Evolution of Total Density Profiles and Central Dark Matter Fractions in Simulated Early-Type Galaxies
Rhea-Silvia Remus, Klaus Dolag, Thorsten Naab +4
We present evidence from cosmological hydrodynamical simulations for a co-evolution of the slope of the total (dark and stellar) mass density profile, gamma_tot, and the dark matte…
Shape asymmetry: a morphological indicator for automatic detection of galaxies in the post-coalescence merger stages
M. M. Pawlik, V. Wild, C. J. Walcher +5
We present a new morphological indicator designed for automated recognition of galaxies with faint asymmetric tidal features suggestive of an ongoing or past merger. We use this ne…