Merger of Massive Black Holes using N-Body Simulations with Post-Newtonian Corrections (2008)
Preto, Miguel, Berentzen, Ingo, Berczik, Peter, Merritt, David, Spurzem, Rainer
We present preliminary results from self-consistent, high resolution direct {\it N}-body simulations of massive black hole binaries in mergers of galactic nuclei. The dynamics of the black hole...
Performance Analysis of Direct N-Body Algorithms on Special-Purpose Supercomputers (2006)
Harfst, Stefan, Gualandris, Alessia, Merritt, David, Spurzem, Rainer, Zwart, Simon Portegies, Berczik, Peter
Direct-summation N-body algorithms compute the gravitational interaction between stars in an exact way and have a computational complexity of O(N^2). Performance can be greatly enhanced via the use...
Efficient merger of Binary Supermassive Black Holes in Non-Axisymmetric Galaxies (2006)
Berczik, Peter, Merritt, David, Spurzem, Rainer, Bischof, Hans-Peter
Also archived in: arXiv:astro-ph/0601698 v1 Jan 30 2006
Efficient Merger of Binary Supermassive Black Holes in Non-Axisymmetric Galaxies (2006)
Berczik, Peter, Merritt, David, Spurzem, Rainer, Bischof, Hans-Peter
Binary supermassive black holes form naturally in galaxy mergers, but their long-term evolution is uncertain. In spherical galaxies, N-body simulations show that binary evolution stalls at...
Performance analysis of direct N-body algorithms on special-purpose supercomputers (2006)
Harfst, Stefan, Gualandris, Alessia, Merritt, David, Spurzem, Rainer, Zwart, Simon, Berczik, Peter
Direct-summation N-body algorithms compute the gravitational interaction between stars in an exact way and have a computational complexity of O(N^2). Performance can be greatly enhanced via the use...
Merritt, David, Berczik, Peter, Spurzem, Rainer
Also archived in: arXiv:astro-ph/0507260 v1 11 Jul 2005
Berczik, Peter, Merritt, David, Spurzem, Rainer
Also archived in: arXiv:astro-ph/0507260 v1 11 Jul 2005
Berczik, Peter, Merritt, David, Spurzem, Rainer
We use direct-summation N-body integrations to follow the evolution of binary black holes at the centers of galaxy models with large, constant-density cores. Particle numbers as large as 400K are...
Brownian Motion of Black Holes in Dense Nuclei (2004)
Merritt, David, Berczik, Peter, Laun, Frederik
We evaluate the Brownian motion of a massive particle ("black hole") at the center of a galaxy using N-body simulations. Our galaxy models have power-law central density cusps like those observed at...
Analyze of the star formation modeling algorithm in SPH code (2001)
The chemical and photometric evolution of star forming disk galaxies is investigated. Numerical simulations of the complex gasdynamical flows are based on our own coding of the Chemo - Dynamical...
Dissipative N - body code for galaxy evolution (2000)
Berczik, Peter, Kravchuk, Sergei
The evolving galaxy is considered as a system of baryonic fragments embedded into the static dark nonbaryonic (DH) and baryonic (BH) halo and subjected to gravitational and viscous interactions....
Modeling the star formation in galaxies using the Chemo - dynamical SPH code (2000)
A new Chemo - Dynamical Smoothed Particle Hydrodynamic (CD - SPH) code is presented. The disk galaxy is described as a multi - fragmented gas and star system, embedded in a cold dark matter halo. The...
Chemo - Photometric evolution of star forming disk galaxy (2000)
The chemical and photometric evolution of star forming disk galaxies is investigated. Numerical simulations of the complex gasdynamical flows are based on our own coding of the Chemo - Dynamical...
A scenario for the formation of dwarf galaxies with an anomally low dark-matter content (1999)
Berczik, Peter, Kravchuk, Sergei G.
The formation and evolution of a low mass galaxy in the gravitational field of a massive disk galaxy (like the Milky Way) has been studied. Numerical simulations of complex gas-dynamic flows are...
Chemo-Dynamical SPH code for evolution of star forming disk galaxies (1999)
A new Chemo-Dynamical Smoothed Particle Hydrodynamic (CD-SPH) code is presented. The disk galaxy is described as a multi-fragmented gas and star system, embedded in a cold dark matter halo with a...
Chemo -- Dynamical evolution of disk galaxies, smoothed particles hydrodynamics approach (1998)
A new Chemo -- Dynamical Smoothed Particle Hydrodynamic (CD -- SPH) code is presented. The disk galaxy is described as a multi -- fragmented gas and star system, embedded into the cold dark matter...
SPH code for dynamical and chemical evolution of disk galaxies (1998)
The problem of chemical and dynamical evolution of galaxies is one of the most attracting and complex problems of modern astrophysics. Within the framework of the given work the standard dynamic...
Galaxy as dissipative N -- body system. Chemical aspect (1998)
Berczik, Peter, Kravchuk, Sergei G.
The evolving galaxy is considered as a system of baryonic fragments embedded into the static dark nonbaryonic (DH) and baryonic (BH) halo and subjected to gravitational and viscous interactions....