Global ETD Search
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Showing 1 to 14 of 14 for “"hydrostatic equilibrium"”.
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Accretion disks in the cataclysmic variables
… of gaseous circumstellar disks in vertical hydrostatic equilibrium are derived. The possibility of turbulent instablilty and the resulting viscosity laws are discussed.
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Novel applications of diffusion-driven flow
… flow is the result of a conflict between hydrostatic equilibrium in a density stratified fluid and the no-flux boundary condition that must be obeyed on impermeable boundaries that are sloping with respect to gravity. This conflict results in a boundary layer flow, and in this thesis we …
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Distribution of matter in clusters of galaxies
… the usual assumptions of mass-follows- light and hydrostatic equilibrium.
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Distribution of matter in clusters of galaxies
… the usual assumptions of mass-follows- light and hydrostatic equilibrium.
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Geophysical investigation of Vesta, Ceres and the Moon using gravity and topography data
… the Dawn spacecraft, we find that once hot and hydrostatic, Vesta is no longer either. It was despun by two giant collisions. We use the Dawn gravity/topography data along with meteoritic data to provide constraints on Vesta's internal structure. Unlike Vesta, Ceres is close to hydrostatic …
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A one dimensional model of convection in iron core collapse supernovae
… quasi-statically whose post-shock region is in hydrostatic equilibrium, increased post shock entropy is associated with a smaller shock stall radius. Therefore higher entropies behind the shock in these conditions correspond to model failure rather than to successful explosions. This correlation …
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Heavy neutrino balls and the supermassive dark object at the Galactic center
… Tolman-Oppenheimer-Yolkoff (TOV ) equations of hydrostatic equilibrium. An extension of the TOV equations is made to describe the detailed properties of supermassive neutrino balls around compact objects such as white dwarfs and neutron stars. We further show that the supermassive compact dark …
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Mass profiles of clusters of galaxies : a comparison of X-ray and weak lensing observations
… of MX/MWL = 1, expected if these clusters are in hydrostatic equilibrium. This may imply that the gas is hotter than the dark matter in cluster central regions (Rasia et al., 2004)..
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Modelling the evolution of Arctic melt ponds
… a section of a sea ice floe considered to be in hydrostatic equilibrium, where edge eff�ects such as the presence of leads are neglected and consists of a grid of cells, each of which can be in one of four possible con�figurations: snow covered ice; bare ice; melt pond covered ice or open water. …
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On the evolution of gaseous haloes in cosmological simulations of galaxy formation
… support. With the FABLE suite, I studied how the hydrostatic mass bias and turbulent pressure support level in galaxy clusters change as they undergo major mergers and are host to powerful feedback episodes. I found that clusters rarely tend to be in hydrostatic equilibrium for long, with …
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Retrieval of atmospheric properties of extrasolar planets
… coupled with line-by-line radiative transfer, hydrostatic equilibrium, and energy balance, along with prescriptions for non-equilibrium molecular composition and energy redistribution. The major difference from traditional 1-D radiative transfer models is the parametric P-T profile, which …
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Ultraviolet and EUV studies of selected structures in the solar corona
… were derived. They appeared to satisfy the hydrostatic equilibrium condition. The equatorial streamer appeared to be cooler than the mid-latitude one. Moreover, while the former tended to isothermal values already in the low corona, the latter was multithermal at the base and isothermal at …
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Experimental and numerical studies on oil spilling from damaged oil tankers
… water; simple damage conditions) and adopts hydrostatic theories or quasi-steady models with over-simplified assumptions on data analysis or analytical prediction. These conditions or assumptions may not stand in the complex dynamic spilling process in the real spilling accident. This study …