Results 91 to 100 of about 24,816 (230)

Evolving mantle convection from bottom up to top down. [PDF]

Innovation (Camb), 2022
Mitchell RN, Brown M, Gernon TM, Spencer CJ.   +3 more
europepmc   +1 more source

A dynamic model of Venus's gravity field [PDF]

Unlike Earth, long wavelength gravity anomalies and topography correlate well on Venus. Venus's admittance curve from spherical harmonic degree 2 to 18 is inconsistent with either Airy or Pratt isostasy, but is consistent with dynamic support from mantle
Bills, B. G., Hager, B. H., Kiefer, W. S., Richards, M. A.   +3 more
core   +1 more source

The "Yin-Yang Grid": An Overset Grid in Spherical Geometry

, 2004
A new kind of overset grid, named Yin-Yang grid, for spherical geometry is proposed. The Yin-Yang grid is composed of two identical component grids that are combined in a complemental way to cover a spherical surface with partial overlap on their ...
Akira Kageyama, Baumgardner, Bercovici, Browning, Bunge, Busse, Busse, Chan, Chesshire, Christensen, Christensen, Dormy, Dudhia, Eby, Glatzmaier, Glatzmaier, Habata, Harder, Ishihara, Iwase, Kageyama, Kageyama, Kageyama, Kageyama, Kageyama, Kageyama, Kuang, Li, Machetel, Matsui, Ochi, Phillips, Phillips, Rai, Ratcliff, Richards, Ronchi, Sakuraba, Steger, Steger, Tabata, Takahashi, Tetsuya Sato, Tilgner, Yoshida, Zhang, Zhong   +46 more
core   +1 more source

The Efficient Delivery of Highly Siderophile Elements to the Core Creates a Mass Accretion Catastrophe for the Earth

Journal of Geophysical Research: Planets, Volume 131, Issue 4, April 2026.
Abstract The excess abundance of highly siderophile elements (HSEs), as inferred for the terrestrial planets and the Moon, is thought to record a “late veneer” of impacts after the giant impact phase of planet formation. Estimates for total mass accretion during this period typically assume all HSEs delivered remain entrained in the mantle.
Richard J. Anslow, Maylis Landeau, Amy Bonsor, Jonathan Itcovitz, Oliver Shorttle   +4 more
wiley   +1 more source

Interior Models of Mercury and Conditions for Iron Snow Formation in a Fe‐S‐Si Core

Journal of Geophysical Research: Planets, Volume 131, Issue 4, April 2026.
Abstract Mercury's unique interior structure and magnetic field generation remain to be fully understood. We construct models to further constrain Mercury's interior and test the hypothesis that iron snow within the liquid core drives the dynamo.
Abigail H. Dunnigan, Dunyu Liu, Gregor B. Steinbrügge, Attilio Rivoldini, Mathieu Dumberry, Hao Cao, Krista M. Soderlund   +6 more
wiley   +1 more source

Towards Realistic Progenitors of Core-Collapse Supernovae

, 2011
Two-dimensional (2D) hydrodynamical simulations of progenitor evolution of a 23 solar mass star, close to core collapse (about 1 hour, in 1D), with simultaneously active C, Ne, O, and Si burning shells, are presented and contrasted to existing 1D models (
Arnett, Arnett, Arnett, Arnett, Arnett, Arnett, Asida, Bazàn, Brown, Browning, Bruen, Brun, Burrows, Böhm-Vitense, Casey Meakin, Clayton, Cox, Damköhler, Dearborn, Deupree, Deupree, Fryer, Fryer, Fryer, Goldreich, Hoyle, Hoyle, Hughes, Kalogera, Kuhlen, Landau, Ledoux, Lindl, Meakin, Meakin, Meakin, Meakin, Murphy, Nonaka, Nordlund, Porter, Sedov, Smith, Stone, Timmes, Timmes, Turner, Unno, W. David Arnett, Wongwathanarat, Woodward, Young, Zahn   +52 more
core   +1 more source

Magnetic Field Induced by Convective Flow in Ganymede's Subsurface Ocean

Journal of Geophysical Research: Planets, Volume 131, Issue 4, April 2026.
Abstract It has been suggested that the convective flows in Ganymede's subsurface ocean can generate a magnetic field that is strong enough to be measured by future space missions. Here, we investigate this hypothesis by developing a numerical model of Ganymede's magnetic field induced by the motion of salt water in its interior.
L. Šachl, J. Kvorka, O. Čadek, J. Velímský   +3 more
wiley   +1 more source

GENETIC SOURCES AND TECTONOPHYSICAL REGULARITIES OF DIVISIBILITY OF THE LITHOSPHERE INTO BLOCKS OF VARIOUS RANKS AT DIFFERENT STAGES OF ITS FORMATION: TECTONOPHYSICAL ANALYSIS

Геодинамика и тектонофизика, 2015
The paper presents the first tectonophysical reconstruction of initial divisibility of the protolithosphere as a result of convection in the cooling primitive mantle. Initial division of the protolithosphere into separate masses, i.e.
Semen I. Sherman
doaj   +1 more source

New input data for synthetic AGB evolution [PDF]

, 1998
Analytic formulae are presented to construct detailed secular lightcurves of both early asymptotic giant branch (AGB) and thermally pulsing AGB stars.
Groenewegen, M. A. T., Wagenhuber, J.
core   +2 more sources

Mercury's Tectonic and Geodynamic History: 1. Contractional Tectonic Landform Analysis and Tectonic Strain Using Machine Learning

Journal of Geophysical Research: Planets, Volume 131, Issue 4, April 2026.
Abstract Mercury's tectonic record is dominated by shortening landforms, including lobate scarps, high‐relief ridges and wrinkle ridges. Previous analyses of these structures have used displacement–length ratios to constrain the planet's global contraction to a range of either no more than 2 km or up to 7 km.
A. Broquet, J. C. Andrews‐Hanna
wiley   +1 more source