Results 51 to 60 of about 139,273 (95)

Extracting quasi-steady Lagrangian transport patterns from the ocean circulation: An application to the Gulf of Mexico

, 2017
We construct a climatology of Lagrangian coherent structures (LCSs), the concealed skeleton that shapes transport, with a twelve-year-long data-assimilative simulation of the sea-surface circulation in the Gulf of Mexico (GoM).
Beron-Vera, Francisco J., Duran, Rodrigo, Olascoaga, Maria Josefina   +2 more
core   +2 more sources

Kinematics and dynamics of the Uranian rings [PDF]

The self-gravity model of apse alignment was tested by comparing its predictions about structure within the epsilon ring with an extensive set of observed occultation profiles covering a wide range of ring longitudes.
French, Richard G.
core   +1 more source

Distribution and Kinematics of Classical Cepheids in the Galactic Outer Ring

Open Astronomy, 2015
The existence of an outer ring in the Galaxy can explain the kinematics of OB associations in the Perseus and Sagittarius stellar-gas complexes. Moreover, it can also explain the orientation of the Carina arm with respect to the major axis of the bar. We
Mel’nik A. M., Rautiainen P., Berdnikov L. N., Dambis A. K., Rastorguev A. S.   +4 more
doaj   +1 more source

Probing the kinematics of early-type galaxy halos using planetary nebulae

, 2008
We present first results of a study of the halo kinematics for a sample of early type galaxies using planetary nebulae (PNe) as kinematical tracers. PNe allow to extend up to several effective radii (Re) the information from absorption line kinematics ...
Abadi, Arnaboldi, Bender, Bender, Bender, Buzzoni, Cappellari, Dekel, Douglas, Douglas, Emsellem, Hui, Illingworth, Jacoby, Kormendy, Kormendy, Kronawitter, Naab, Naab, Naab, Naab, Napolitano, Noordermeer, Romanowsky, Saglia   +24 more
core   +1 more source

Phonon anharmonicity of rutile TiO_2 studied by Raman spectrometry and molecular dynamics simulations [PDF]

, 2012
Raman spectra of rutile titanium dioxide (TiO_2) were measured at temperatures from 100 to 1150 K. Each Raman mode showed unique changes with temperature. Beyond the volume-dependent quasiharmonicity, the explicit anharmonicity was large.
Fultz, Brent, Lan, Tian, Tang, Xiaoli
core  

The role of charge and proton transfer in fragmentation of hydrogen-bonded nanosystems: the breakup of ammonia clusters upon single photon multi-ionization

, 2017
The charge and proton dynamics in hydrogen-bonded networks are investigated using ammonia as a model system. The fragmentation dynamics of medium-sized clusters (1-2 nm) upon single photon multi-ionization is studied, by analyzing the momenta of small ...
Gisselbrecht, Mathieu, Grunewald, Christian, Laksman, Joakim, Månsson, Erik P., Oostenrijk, Bart, Sorensen, Stacey, Walsh, Noelle   +6 more
core   +1 more source

Probing the kinematics of the Local Group with chemically enriched gas in the HESTIA simulations

Astronomy & Astrophysics
We present a study of the gas kinematics within the HESTIA project, a state-of-the-art set of simulations of the Local Group, with a particular focus on the velocity patterns of different ions and the large-scale motion of gas and galaxies towards the ...
Biaus L., Nuza S. E., Scannapieco C., Richter P., Damle M., Libeskind N. I., Vogelsberger M.   +6 more
doaj   +1 more source

Analysis of Kinematics and Dynamics for a Novel Hybrid Kinematics Machine

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2007
In this paper a novel 4 Degree-of-Freedom (DOF) parallel mechanism with the configuration of 4PUS-1RPU is first proposed, the mechanism is composed of four symmetrical driving chains and one central passive subchain.
Ying HU, Bing LI, Zhixing WANG, Xiaojun YANG, Hong HU   +4 more
doaj   +1 more source

Revisiting candidate high-velocity stars associated with the Sagittarius dwarf spheroidal galaxy

Astronomy & Astrophysics
Context. Hypervelocity stars (HVSs) are valuable tracers of extreme dynamical processes. The Sagittarius dwarf spheroidal galaxy (Sgr dSph), currently undergoing tidal disruption, offers a unique environment to search for such stars. Aims.
Zhang Jian, Du Cuihua, Deng Mingji, Liu Haoyang, Li Zhongcheng   +4 more
doaj   +1 more source

On the Possibility of Applying the Quasi-Isothermal Stäckel’s Model to Our Galaxy

Open Astronomy, 2015
An earlier derived quasi-isothermal Stäckel’s model of mass distribution in stellar systems and the corresponding formula for space density are applied to our Galaxy. The model rotation curve is fitted to HI kinematical data.
Gromov A. O., Nikiforov I. I., Ossipkov L. P.   +2 more
doaj   +1 more source