Results 31 to 40 of about 779,528 (296)

Gravitational N-body Simulations

, 2008
Gravitational N-body simulations, that is numerical solutions of the equations of motions for N particles interacting gravitationally, are widely used tools in astrophysics, with applications from few body or solar system like systems all the way up to galactic and cosmological scales.
Trenti, M., Hut, P.
openaire   +2 more sources

Dark energy perturbations in $N$-body simulations

, 2019
We present $N$-body simulations which are fully compatible with general relativity, with dark energy consistently included at both the background and perturbation level.
Dakin, Jeppe, Hannestad, Steen, Knabenhans, Mischa, Stadel, Joachim, Tram, Thomas   +4 more
core   +1 more source

Direct $N$-body simulations of globular clusters - II. Palomar 4 [PDF]

, 2014
We use direct $N$-body calculations to study the evolution of the unusually extended outer halo globular cluster Palomar 4 (Pal~4) over its entire lifetime in order to reproduce its observed mass, half-light radius, velocity dispersion and mass function ...
Baumgardt, Holger, Frank, Matthias J., Haghi, Hosein, Kroupa, Pavel, Kuepper, Andreas H. W., Zonoozi, Akram Hasani   +5 more
core   +2 more sources

Dark matter with n-body numerical simulations

Revista Mexicana de Física E, 2020
The development of numerical N-body simulations have allowed studying the formation process and evolution of galaxies at different scales. This paper presents the fundamental concepts of N-body systems applied to the cosmological evolution of the ¤-Cold Dark Matter (¤CDM) model. To perform structure formation in the Universe, we provide an introduction
Chacon, Jazhiel, Vazquez, J. Alberto, Gabbasov, Ruslan   +2 more
openaire   +3 more sources

N-body simulations in modified Newtonian dynamics

, 2008
We describe some results obtained with N-MODY, a code for N-body simulations of collisionless stellar systems in modified Newtonian dynamics (MOND). We found that a few fundamental dynamical processes are profoundly different in MOND and in Newtonian ...
Barnes, Bekenstein, Brada, Brada, C. Nipoti, Ciotti, Ciotti, Djorgovski, Dressler, Faber, Felten, Kormendy, L. Ciotti, Milgrom, Milgrom, Nipoti, Nipoti, Nipoti, Nipoti, P. Londrillo, Sánchez-Salcedo, Tiret   +21 more
core   +1 more source

A Test of the Particle Paradigm in N-Body Simulations [PDF]

, 1996
We present results of tests of the evolution of small ``fluid elements'' in cosmological N--body simulations, to examine the validity of their treatment as particles. We find that even very small elements typically collapse along one axis while expanding
Adrian L. Melott, Bryce Kuhlman, Coles P., Little B., Sergei F. Shandarin, Splinter R., Zeldovich Ya. B.   +6 more
core   +3 more sources

N-body simulations of the Magellanic Stream

, 2005
A suite of high-resolution N-body simulations of the Magellanic Clouds -- Milky Way system are presented and compared directly with newly available data from the HI Parkes All-Sky Survey (HIPASS).
Barnes, Bekki, Bekki, Binney, Brad K. Gibson, Brueck, Brüns, Daisuke Kawata, Dopita, Faber, Feast, Fich, Gardiner, Gardiner, Gardiner, Gibson, Hardy, Hashimoto, Hatzidimitriou, Ibata, Just, Kawata, Knebe, Kuijken, Lin, Lu, Maddison, Martin, Mastropietro, Mathewson, Mathewson, Moore, Muller, Murai, Murali, Philip, Philip, Putman, Putman, Recillas-Cruz, Schommer, Stanimirović, Stanimirović, Swaters, Tim W. Connors, Tully, Van Der Marel, Wakker, Wakker, Yoshizawa, Zhao   +50 more
core   +1 more source

Time after time – circadian clocks through the lens of oscillator theory

FEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo, Carolin Ector, Hanspeter Herzel   +2 more
wiley   +1 more source

Numerical Determination of the Gravitational Cross Sections of an Accreting Binary

The Astrophysical Journal
A significant amount of work has been devoted to the study of small binary solar system objects. The majority of these binaries, especially among the near-Earth or main belt asteroids, have small radius ratios, implying a large difference in size between
Zachary Murray
doaj   +1 more source

Local stochastic non-Gaussianity and N-body simulations

, 2011
Large-scale clustering of highly biased tracers of large-scale structure has emerged as one of the best observational probes of primordial non-Gaussianity of the local type (i.e. f_{NL}^{local}).
A. Lewis, A. Pillepich, A. Slosar, B. Robertson, B.A. Reid, C.-P. Ma, C.T. Byrnes, D. Babich, E. Komatsu, H.J. Mo, J. Smidt ., J.-Q. Xia ., J.L. Tinker ., J.M. Maldacena, K. Dimopoulos, K. Koyama, K.M. Smith, K.M. Smith, Kendrick M Smith, L. Moscardini, L. Senatore, L. Verde, M. LoVerde, M.S. Warren, Marilena LoVerde, P. Creminelli, P. Creminelli, P. Creminelli, P. Creminelli, P.D. Meerburg, Q.-G. Huang, R. Scoccimarro, S. Cole, S. Matarrese, V. Desjacques, WMAP collaboration, WMAP collaboration, Y. Zeldovich   +37 more
core   +1 more source