Results 31 to 40 of about 88,208 (278)

On dynamical friction in a gaseous medium with a boundary

, 2010
Dynamical friction arises from the interaction of a perturber and the gravitational wake it excites in the ambient medium. We study the effects of the presence of a boundary on dynamical friction by studying analytically the interaction of perturber with
Namouni, Fathi
core   +3 more sources

LISA double black holes: Dynamics in gaseous nuclear discs [PDF]

, 2005
We study the inspiral of double black holes, with masses in the LISA window of detectability, orbiting inside a massive circum-nuclear disc. Using high-resolution SPH simulations, we follow the black hole dynamics in the early phase when gas-dynamical ...
Colpi, M., Dotti, M., Haardt, F.
core   +2 more sources

Nonlinear Friction and Dynamical Identification for a Robot Manipulator with Improved Cuckoo Search Algorithm

Journal of Robotics, 2018
This paper concerns the problem of dynamical identification for an industrial robot manipulator and presents an identification procedure based on an improved cuckoo search algorithm.
Li Ding, Xingcheng Li, Qilin Li, Yuan Chao   +3 more
doaj   +1 more source

Corrective effect of many-body interactions in dynamical friction

, 2011
Dynamical friction is a fundamental and important phenomenon in astrophysics. The Chandrasekhar formula is a well-known analytical estimation of the effect.
Angus, Barnes, Barnes, Bekki, Binney, Binney, Boily, Buonanno, Buonanno, Burkert, Capuzzo-Dolcetta, Chandrasekhar, Cowsik, de Blok, de Blok, Durrell, Esquivel, Fujii, Fujii, Gilmore, Goerdt, Goerdt, Governato, Greco, Gualandris, Hashimoto, Hernandez, Hernquist, Inoue, Jiang, Kim, Li, Liu, Lotz, Lynden Bell, Mackey, Makino, Mashchenko, Mashchenko, Miller, Miocchi, Navarro, Oh, Ostriker, Pasetto, Pesce, Read, Salucci, Shigeki Inoue, Springel, Springel, Strader, Strigari, Sánchez-Salcedo, Tremaine, Tremaine, van Albada, Vesperini, Vesperini, Weinberg   +59 more
core   +1 more source

Using chaos synchronization to estimate the largest lyapunov exponent of nonsmooth systems

Discrete Dynamics in Nature and Society, 2000
We describe the method of estimation of the largest Lyapunov exponent of nonsmooth dynamical systems using the properties of chaos synchronization. The method is based on the coupling of two identical dynamical systems and is tested on two examples of ...
Andrzej Stefanski, Tomasz kapitaniak
doaj   +1 more source

An extensive study of dynamical friction in dwarf galaxies: the role of stars, dark matter, halo profiles and MOND

, 2006
We investigate the in-spiraling timescales of globular clusters in dwarf spheroidal (dSph) and dwarf elliptical (dE) galaxies, due to dynamical friction. We address the problem of these timescales having been variously estimated in the literature as much
Begeman, Bekenstein, Binney, Binney, Binney, Blais-Ouellette, Bottema, Brada, Buonanno, Ciotti, Coleman, Colpi, De Blok, De Blok, Dubath, F. J. Sánchez-Salcedo, Fall, Fuchs, Gentile, Gentile, Goerdt, Gunn, Hashimoto, Hayashi, Held, Hernandez, Hernandez, Hodge, Hubble, Jin, Jorge Reyes-Iturbide, Just, Kazantzidis, King, Kleyna, Kleyna, Kleyna, Kregel, Lacey, Lake, Lotz, Mackey, Magorrian, Mateo, Mayer, McGaugh, Milgrom, Milgrom, Navarro, Navarro, Oh, Pointecouteau, Pryor, Read, Read, Sanders, Sanders, Spekkens, Stoehr, Sánchez-Salcedo, Sánchez-Salcedo, Sánchez-Salcedo, Taffoni, The, Tremaine, Van Den Bosch, Walcher, Walker, Walker, Wang, White, X. Hernandez, Łokas, Łokas, Łokas, Łokas   +75 more
core   +1 more source

Quantum Dynamics with Electronic Friction

Physical Review Letters, 2022
20 pages (with Supplemental Material)
Rocco Martinazzo, Irene Burghardt
openaire   +3 more sources

Gas Dynamical Friction on Accreting Objects

The Astrophysical Journal
The drag force experienced by astronomical objects moving through gaseous media (gas dynamical friction) plays a crucial role in their orbital evolution.
Tomoya Suzuguchi, Kazuyuki Sugimura, Takashi Hosokawa, Tomoaki Matsumoto   +3 more
doaj   +1 more source

Angular Momentum in Dwarf Galaxies

Open Astronomy, 2014
We study the “angular momentum catastrophe” in the framework of interaction among baryons and dark matter through dynamical friction. By means of Del Popolo (2009) model we simulate 14 galaxies similar to those investigated by van den Bosch, Burkert and ...
Del Popolo A.
doaj   +1 more source

Contributions to the accreted stellar halo: an atlas of stellar deposition

, 2016
The accreted component of stellar halos is composed of the contributions of several satellites, falling onto their host with their different masses, at different times, on different orbits.
Amorisco, N. C.
core   +1 more source