Results 161 to 170 of about 24,858 (303)

Geological Mapping and Structural Analysis of the Western Half of the Eminescu Quadrangle (H09), Mercury

Journal of Geophysical Research: Planets, Volume 131, Issue 6, June 2026.
Abstract We present the results of the first geological mapping of the western half of the Eminescu Quadrangle (H09) on Mercury. Multiple data sets from the NASA MESSENGER Mercury Dual Imaging System instrument were used to produce a geological map covering the area between 72°E and 108°E longitude and 22.5°N and 22.5°S latitude.
M. El Yazidi, E. Sefton‐Nash, C. Orgel, G. De Marchi, J. Filiberto, B. Bradák, P. D'Incecco, N. Slim Shimi, F. Srarfi, G. Leone   +9 more
wiley   +1 more source

Cosmic Dust as a Prerequisite for the Formation of Complex Organic Molecules in Space?

The Astrophysical Journal
In cold, dense astrophysical environments dust grains are mixed with molecular ices. Chemistry in those dust/ice mixtures is determined by diffusion and reaction of molecules and radicals.
Alexey Potapov, Kilian Pollok, Falko Langenhorst, Martin McCoustra, Robin T. Garrod   +4 more
doaj   +1 more source

Emergence of Uncompensable Heat Stress During Monsoon Season in India

AGU Advances, Volume 7, Issue 3, June 2026.
Abstract Uncompensable heat stress (UHS), characterized by the loss of homeostasis due to excessive environmental thermal loading, causes substantial heat‐related health risks in India. However, the spatial and seasonal heterogeneity, as well as temporal changes of UHS in India remain poorly understood.
Dipesh Singh Chuphal, Qinqin Kong, Matthew Huber, Vimal Mishra   +3 more
wiley   +1 more source

Fluid‐Driven Cohesive Strengthening: Critical Role of Reaction Kinetics as the Determinant for Frictional Stability

AGU Advances, Volume 7, Issue 3, June 2026.
Abstract Following an earthquake, faults lock and regain strength via a combination of healing mechanisms that include pressure solution, contact growth, and cementation. Fault healing dictates strength recovery during the seismic cycle and is therefore a key factor controlling earthquake recurrence intervals, stress drop, and other source properties ...
R. Affinito, G. Volpe, L. Calzolari, T. Mittal, G. Pozzi, C. Marone   +5 more
wiley   +1 more source

MARVEL Analysis of the Measured High-resolution Spectra of 12C16O

The Astrophysical Journal Supplement Series
The Measured Active Rotational–Vibrational Energy Levels (MARVEL) algorithm is used to determine accurate empirical rotational–vibrational energy levels for the ground electronic state of the diatomic ^12 C ^16 O molecule.
Salman Mahmoud, Nayla El-Kork, Nariman Abu Elkher, Mubarak Almehairbi, Malathe Samir Khalil, Tibor Furtenbacher, Attila G. Császár, Olga P. Yurchenko, Sergey N. Yurchenko, Jonathan Tennyson   +9 more
doaj   +1 more source

Metamorphic Dehydration, Fluid Pressure, and the Frictional‐Viscous Transition Along Subduction Megathrusts: Case Study in Cascadia and Implications for Slow Earthquakes

AGU Advances, Volume 7, Issue 3, June 2026.
Abstract Relative plate motion in subduction zones transitions from frictional slip to viscous flow with increasing depth and temperature. The frictional‐viscous transition can control the depth extent of megathrust earthquakes and episodic tremor and slip (ETS).
So Ozawa, Eric M. Dunham, Cailey B. Condit   +2 more
wiley   +1 more source

Autogenic Shoreline Migration and Its Effect on the Storage of Carbon in Marginal Marine Successions

AGU Advances, Volume 7, Issue 3, June 2026.
Abstract The accumulation of organic matter (OM) near shorelines, known as blue carbon, is a key sink in the global carbon cycle. This accumulation is influenced by elevation relative to sea level of the delta‐top, which changes through the movement of shorelines with time.
Jose R. Silvestre, Kelly M. Sanks, Samuel M. Zapp, Yi Hou, John B. Shaw, Udita Mukherjee, Rhodri M. Jerrett, Robert A. Duller, Kyle M. Straub   +8 more
wiley   +1 more source

A laboratory astrophysics problem

, 2020
Emission lines of singly charged ions populate many astrophysical spectra. However, the interpretation of the line intensities (usually line ratios) often depends on the transition rates of the decays of very long-lived low-lying levels. For example, the line ratio of two electric-dipole forbidden transitions in the \(3s^{2} 3p^{3}\) ground ...
openaire   +1 more source

Laboratory Astrophysics using High Energy/Power Lasers

, 2017
With the advent of high energy/power lasers, extreme conditions, such as those found in astrophysical environments, can be reproduced in laboratory. The scaling between laboratory and astrophysical environments, especially for viscosity and resistivity ...
Ryu, Dongsu
core  

First Results of a New Inversion Tool for Thermospheric Neutral Mass Density Computations During Severe Geomagnetic Storms

AGU Advances, Volume 7, Issue 3, June 2026.
Abstract In Low Earth Orbit (LEO), atmospheric drag is the dominant source of trajectory prediction error below approximately 700 km altitude, primarily due to inaccuracies in thermospheric density models. This work presents a method for temporally deconvolving Energy Dissipation Rates (EDRs) to produce single‐satellite density estimates, which can be ...
S. Mutschler, M. Pilinski, E. Zesta, D. M. Oliveira, K. Delano, K. Garcia‐Sage, W. K. Tobiska   +6 more
wiley   +1 more source