Matches in SemOpenAlex for { <https://semopenalex.org/work/W2995292880> ?p ?o ?g. }
- W2995292880 endingPage "53" @default.
- W2995292880 startingPage "53" @default.
- W2995292880 abstract "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 regularized regions around every supermassive black hole (SMBH). This allows for simultaneously following global galactic-scale dynamical and astrophysical processes, while solving the dynamics of SMBHs, SMBH binaries and surrounding stellar systems at sub-parsec scales. The KETJU code includes Post-Newtonian terms in the equations of motions of the SMBHs which enables a new SMBH merger criterion based on the gravitational wave coalescence timescale pushing the merger separation of SMBHs down to $sim 0.005$ pc. We test the performance of our code by comparison to NBODY7 and rVINE. We set up dynamically stable multi-component merger progenitor galaxies to study the SMBH binary evolution during galaxy mergers. In our simulation sample the SMBH binaries do not suffer from the final-parsec problem, which we attribute to the non-spherical shape of the merger remnants. For bulge-only models, the hardening rate decreases with increasing resolution, whereas for models which in addition include massive dark matter halos the SMBH binary hardening rate becomes practically independent of the mass resolution of the stellar bulge. The SMBHs coalesce on average 200 Myr after the formation of the SMBH binary. However, small differences in the initial SMBH binary eccentricities can result in large differences in the SMBH coalescence times. Finally, we discuss the future prospects of KETJU, which allows for a straightforward inclusion of gas physics in the simulations." @default.
- W2995292880 created "2019-12-26" @default.
- W2995292880 creator A5022575311 @default.
- W2995292880 creator A5032012858 @default.
- W2995292880 creator A5041321688 @default.
- W2995292880 creator A5050701088 @default.
- W2995292880 creator A5058053204 @default.
- W2995292880 creator A5068086781 @default.
- W2995292880 date "2017-05-04" @default.
- W2995292880 modified "2023-10-12" @default.
- W2995292880 title "Post-Newtonian Dynamical Modeling of Supermassive Black Holes in Galactic-scale Simulations" @default.
- W2995292880 cites W157476987 @default.
- W2995292880 cites W1606387711 @default.
- W2995292880 cites W1631788275 @default.
- W2995292880 cites W1737210636 @default.
- W2995292880 cites W1753711873 @default.
- W2995292880 cites W1833181682 @default.
- W2995292880 cites W1853164862 @default.
- W2995292880 cites W1861738746 @default.
- W2995292880 cites W1878238285 @default.
- W2995292880 cites W1950633692 @default.
- W2995292880 cites W1955258801 @default.
- W2995292880 cites W1965593752 @default.
- W2995292880 cites W1970759860 @default.
- W2995292880 cites W1973259509 @default.
- W2995292880 cites W1976984851 @default.
- W2995292880 cites W1978525979 @default.
- W2995292880 cites W1978583182 @default.
- W2995292880 cites W1983242690 @default.
- W2995292880 cites W1995061453 @default.
- W2995292880 cites W1999367759 @default.
- W2995292880 cites W2001698702 @default.
- W2995292880 cites W2002044265 @default.
- W2995292880 cites W2003309224 @default.
- W2995292880 cites W2014745580 @default.
- W2995292880 cites W2017762678 @default.
- W2995292880 cites W2018026752 @default.
- W2995292880 cites W2018143557 @default.
- W2995292880 cites W2023160031 @default.
- W2995292880 cites W2025020969 @default.
- W2995292880 cites W2026545869 @default.
- W2995292880 cites W2026942267 @default.
- W2995292880 cites W2029106942 @default.
- W2995292880 cites W2029421531 @default.
- W2995292880 cites W2031012295 @default.
- W2995292880 cites W2032188297 @default.
- W2995292880 cites W2033668875 @default.
- W2995292880 cites W2039964660 @default.
- W2995292880 cites W2041542911 @default.
- W2995292880 cites W2042561599 @default.
- W2995292880 cites W2043137394 @default.
- W2995292880 cites W2043866598 @default.
- W2995292880 cites W2044007637 @default.
- W2995292880 cites W2049825969 @default.
- W2995292880 cites W2050761448 @default.
- W2995292880 cites W2058431918 @default.
- W2995292880 cites W2062764479 @default.
- W2995292880 cites W2064912498 @default.
- W2995292880 cites W2067121603 @default.
- W2995292880 cites W2068041270 @default.
- W2995292880 cites W2068306188 @default.
- W2995292880 cites W2070322574 @default.
- W2995292880 cites W2073664129 @default.
- W2995292880 cites W2074780855 @default.
- W2995292880 cites W2074929866 @default.
- W2995292880 cites W2075213059 @default.
- W2995292880 cites W2076480618 @default.
- W2995292880 cites W2076521844 @default.
- W2995292880 cites W2076921701 @default.
- W2995292880 cites W2080281978 @default.
- W2995292880 cites W2087246027 @default.
- W2995292880 cites W2087254551 @default.
- W2995292880 cites W2089276579 @default.
- W2995292880 cites W2092425184 @default.
- W2995292880 cites W2092504858 @default.
- W2995292880 cites W2093149011 @default.
- W2995292880 cites W2094004426 @default.
- W2995292880 cites W2096245028 @default.
- W2995292880 cites W2096367114 @default.
- W2995292880 cites W2098266183 @default.
- W2995292880 cites W2098564368 @default.
- W2995292880 cites W2099966956 @default.
- W2995292880 cites W2104657229 @default.
- W2995292880 cites W2111174568 @default.
- W2995292880 cites W2119131940 @default.
- W2995292880 cites W2121737207 @default.
- W2995292880 cites W2122897834 @default.
- W2995292880 cites W2128089313 @default.
- W2995292880 cites W2131088881 @default.
- W2995292880 cites W2134948061 @default.
- W2995292880 cites W2135443317 @default.
- W2995292880 cites W2135894620 @default.
- W2995292880 cites W2149960140 @default.
- W2995292880 cites W2151868168 @default.
- W2995292880 cites W2152621974 @default.
- W2995292880 cites W2156077787 @default.
- W2995292880 cites W2158204046 @default.
- W2995292880 cites W2158622701 @default.