Results 71 to 80 of about 86,516 (190)

The Power of a Name: Toward a Unified Approach to Naming Space Weather Events

open access: yesPerspectives of Earth and Space Scientists, Volume 6, Issue 1, December 2025.
Abstract Our increasing reliance on technology vulnerable to space weather effects underscores the urgent need for effective public communication about these phenomena. While scientific research thrives on precise technical language, broader public engagement necessitates a more accessible and memorable approach.
Sophie Chabanski   +4 more
wiley   +1 more source

IC 4200: a gas-rich early-type galaxy formed via a major merger

open access: yes, 2006
We present the result of radio and optical observations of the S0 galaxy IC 4200. We find that the galaxy hosts 8.5 billion solar masses of HI rotating on a ~90 deg warped disk extended out to 60 kpc from the centre of the galaxy.
Morganti, R.   +4 more
core   +1 more source

The Meteoritical Society: Business from 2023 to 2024

open access: yes
Meteoritics &Planetary Science, Volume 60, Issue 3, Page 680-696, March 2025.
Nancy L. Chabot   +2 more
wiley   +1 more source

Is Water Stress the Root Cause of the Observed Nonlinear Relationship Between Yield Losses and Temperature?

open access: yesAGU Advances, Volume 6, Issue 4, August 2025.
Abstract Observational analyses consistently find that yields of major rainfed crops increase with temperature up to a threshold of approximately 32° ${}^{\circ}$C, above which they reduce sharply. Two damage pathways have been suggested to explain this relationship: that high temperatures directly stress crops and drive yield loss, or that high ...
Lucas R. Vargas Zeppetello   +2 more
wiley   +1 more source

The South African Astronomical Observatory [PDF]

open access: yes
Topics discussed in the Overview of Year 1988 include the following: Supernova in the Large Magellanic Cloud; Galaxies; Ground based observations of celestial x ray sources; the Magellanic Clouds; Pulsating variables; Galactic structure; Binary star ...

core   +1 more source

Helioseismology and Asteroseismology: Looking for Gravitational Waves in acoustic oscillations

open access: yes, 2014
Current helioseismology observations allow the determination of the frequencies and surface velocity amplitudes of solar acoustic modes with exceptionally high precision. In some cases, the frequency accuracy is better than one part in a million. We show
Lopes, Ilídio, Silk, Joseph
core   +2 more sources

Mercury Deposition in South China Across the Ordovician‐Silurian Transition: Implications for Climate Change

open access: yesGeochemistry, Geophysics, Geosystems, Volume 26, Issue 7, July 2025.
Abstract Most of the global climate changes are closely associated with volcanic activity. However, the link between global cooling during the Ordovician‐Silurian (O‐S) transition and volcanism remains unclear due to limited constraints on large volcanic events before, during, and after the peak of the Hirnantian glaciation (PHG). Here, we present high‐
Weiliang Kong   +4 more
wiley   +1 more source

An Asymmetric Galactic Stellar Disk Traced by OB-type Stars from LAMOST DR7

open access: yesResearch in Astronomy and Astrophysics
Using 9943 OB-type stars from LAMOST DR7 in the solar neighborhood, we fit the vertical stellar density profile with the model including a single exponential distribution at different positions (R, Φ).
Xiaopeng Liu   +6 more
semanticscholar   +1 more source

The Ionopause at Mars and Its Correlation With Magnetic Topology and Plasma Pressure

open access: yesJournal of Geophysical Research: Space Physics, Volume 130, Issue 7, July 2025.
Abstract We utilize Mars Atmosphere and Volatile Evolution (MAVEN) observations to investigate the ionopause boundary at Mars, the formation process of which is not yet well described. We focus on the eighth deep dip campaign (DD8), which consists of 50 consecutive orbits, and we develop an automated routine to identify ionopause boundaries in electron
Katerina Stergiopoulou   +12 more
wiley   +1 more source

Estimating Solar Wind Charge Exchange Generated Soft X‐Rays in the Jovian Magnetosheath

open access: yesJournal of Geophysical Research: Space Physics, Volume 130, Issue 7, July 2025.
Abstract Solar Wind Charge eXchange (SWCX) generated soft x‐rays are used extensively to study the interfaces between charged and neutral particles throughout the solar system. This paper outlines the development of a model of Jupiter's magnetosheath using magnetohydrodynamic derived boundary equations and a combination of in situ Juno measurements and
Fenn Leppard   +8 more
wiley   +1 more source

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