English
Related papers

Related papers: An Fe-Si-Ni solidification model of the Earth's la…

200 papers

Using density functional theory (DFT) we report results for the electronic structure and vibrational dynamics of hydrogenated {\beta} reconstructed Silicon Carbide (001) (3x2) surfaces with various levels of hydrogenation. These results…

Materials Science · Physics 2015-05-30 James Westover , Hamid Oughaddou , Hanna Enriquez , Abdelkader Kara

In this paper we show that the DUNE experiment can measure the Earth's density profile by analyzing atmospheric neutrino oscillations. The crucial feature that enables such measurement is the detailed event reconstruction capability of…

High Energy Physics - Phenomenology · Physics 2022-06-15 Kevin J. Kelly , Pedro A. N. Machado , Ivan Martinez-Soler , Yuber F. Perez-Gonzalez

Helium is the second most abundant element in the universe, and together with silica, they are major components of giant planets. Exploring the reactivity and state of helium and silica under high pressure is of fundamental importance for…

Earth's mantle nitrogen (N) content is comparable to that found in its N-rich atmosphere. Mantle N has been proposed to be primordial or sourced by later subduction, yet its origin has not been elucidated. Here we model N partitioning…

Geophysics · Physics 2022-05-02 H. Kurokawa , M. Laneuville , Y. Li , N. Zhang , Y. Fujii , H. Sakuraba , C. Houser , H. J. Cleaves

The orthorhombic phase of Si-doped Fe carbide is synthesized at high pressures and temperatures using laser-heated diamond anvil cell (LHDAC), followed by its characterization using X-ray diffraction (XRD) measurements, Transmission…

Materials Science · Physics 2020-11-17 Pinku Saha , Konstantin Glazyrin , Goutam Dev Mukherjee

A simple and robust method able to predict, with high accuracy, the optical properties of single and multi-layer nanostructures is presented. The method exploits a COMSOL Multiphysics simulation platform and it has been validated by three…

Applied Physics · Physics 2020-06-16 Giuseppe Emanuele Lio , Giovanna Palermo , Roberto Caputo , Antonio De Luca

We present the phase diagram of a system of mesogenic top-shaped molecules based on the Parsons- Lee density functional theory and Monte Carlo simulation. The molecules are modeled as a hard spherocylinder with a hard sphere embedded in its…

Soft Condensed Matter · Physics 2011-06-13 D. de las Heras , S. Varga , F. J. Vesely

The carbon-silicate cycle regulates the atmospheric $CO_2$ content of terrestrial planets on geological timescales through a balance between the rates of $CO_2$ volcanic outgassing and planetary intake from rock weathering. It is thought to…

Earth and Planetary Astrophysics · Physics 2015-08-26 Kristen Menou

We have performed a detailed investigation of geophysical constraints on the possible admixture of mirror matter inside the Earth. On the basis of the Preliminary Reference Earth Model (PREM) -- the `Standard Model' of the Earth's interior…

High Energy Physics - Phenomenology · Physics 2009-10-31 A. Yu. Ignatiev , R. R. Volkas

A qualitative understanding of the greenhouse effect has long been available through models based on globally- and time-averaged quantities. We examine here a simple 864-cell climatological model that emphasizes vertical radiative energy…

Atmospheric and Oceanic Physics · Physics 2007-05-23 Laura E. Schmidt , H. L. Helfer , Robert S. Knox

Compositionally complex alloys or concentrated solid solutions are the latest frontier in catalyst design, but mixing different elements in one catalyst may result in surface segregation. Atomistic simulations can predict segregation…

Materials Science · Physics 2022-12-12 Alberto Ferrari , Vadim Sotskov , Alexander V. Shapeev , Fritz Körmann

Carbon, the fourth most abundant element in the Universe forms a metallic fluid with transient covalent bonds on melting. Its liquid-liquid phase transitions, intensely sought using simulations had been elusive. Here we use density…

Statistical Mechanics · Physics 2022-03-02 M. W. C. Dharma-wardana , Dennis D. Klug

The theory of Nested Figures of Equilibrium, expanded in Papers I and II, is investigated in the limit where the number of layers of the rotating body is infinite, enabling to reach full heterogeneity. In the asymptotic process, the…

Solar and Stellar Astrophysics · Physics 2023-11-10 Clément Staelen , Jean-Marc Huré

Venus' mass and radius are similar to those of Earth. However, dissimilarities in atmospheric properties, geophysical activity and magnetic field generation could hint towards significant differences in the chemical composition and interior…

Earth and Planetary Astrophysics · Physics 2021-12-10 Oliver Shah , Ravit Helled , Yann Alibert , Klaus Mezger

It is generally accepted that silicate-metal (`rocky') planet formation relies on coagulation from a mixture of sub-Mars sized planetary embryos and (smaller) planetesimals that dynamically emerge from the evolving circum-solar disc in the…

Earth and Planetary Astrophysics · Physics 2016-10-26 R. Brasser , S. J. Mojzsis , S. C. Werner , S. Matsumura , S. Ida

Theoretical physical-chemical models for the formation of planetary systems depend on data quality for the Sun's composition, that of stars in the solar neighbourhood, and of the estimated "pristine" compositions for stellar systems. The…

We present gas-phase abundances of carbon (C), $\alpha$-elements (O, Ne, Si, and Ar) and iron (Fe) obtained from stacked spectra of high-$z$ star-forming galaxies with the deep Near Infrared Spectrograph medium-resolution data from the…

Currently, there are about 3 dozen known super-Earth (M < 10 MEarth), of which 8 are transiting planets suitable for atmospheric follow-up observations. Some of the planets are exposed to extreme temperatures as they orbit close to their…

Earth and Planetary Astrophysics · Physics 2015-05-30 Laura Schaefer , Katharina Lodders , Bruce Fegley

A restricted planar circular three-body system, consisting of the Sun and two planets, is studied as a simple model for a planetary system. The mass of the inner planet is considered to be larger and the system is assumed to be moving in a…

Astrophysics · Physics 2009-10-31 Nader Haghighipour

The solidification and macro-segregation problem involving unsteady multi-physics and multi-phase fields is typically a complex process with mass, momentum, heat, and species transfers among solid, mushy, and liquid phase regions. The…

Fluid Dynamics · Physics 2023-03-21 Xiaoyu Feng , Huangxin Chen , Bo Yu , Shuyu Sun