Results 51 to 60 of about 88,472 (171)

Nuclear-Astrophysics Lessons from INTEGRAL

, 2013
Measurements of high-energy photons from cosmic sources of nuclear radiation through ESA's INTEGRAL mission have advanced our knowledge: New data with high spectral resolution showed that characteristic gamma-ray lines from radioactive decays occur ...
Diehl, Roland
core   +1 more source

Water Vapor Vertical Distribution on Mars After Six Years of TGO/NOMAD Solar Occultations: 1. Global Climatology

Journal of Geophysical Research: Planets, Volume 131, Issue 2, February 2026.
Abstract We present vertical profiles of water vapor obtained during six continuous years of solar occultation observations in the infrared by the Nadir and Occultation for MArs Discovery (NOMAD) instrument on board Trace Gas Orbiter. The retrievals have been performed with an inversion code previously applied to smaller samples of this data set, but ...
A. Brines, M. A. López‐Valverde, B. Funke, F. González‐Galindo, S. Aoki, I. R. Thomas, G. L. Villanueva, G. Liuzzi, J. T. Erwin, U. Grabowski, F. Forget, J. J. Lopez‐Moreno, J. Rodriguez‐Gomez, F. Daerden, L. Trompet, B. Ristic, M. R. Patel, J. A. Holmes, G. Bellucci, A. Modak, A. C. Vandaele   +20 more
wiley   +1 more source

Aerosol‐Cloud Interactions: Overcoming a Barrier to Projecting Near‐Term Climate Evolution and Risk

AGU Advances, Volume 7, Issue 1, February 2026.
Abstract Aerosol‐cloud interactions (ACI) are a major source of uncertainty in climate science, critically affecting our ability to project near‐term climate evolution and assess societal risks. These interactions influence effective radiative forcing, cloud dynamics, and precipitation patterns, yet remain insufficiently constrained due to limitations ...
Ulas Im, Bjørn H. Samset, Athanasios Nenes, Jennie L. Thomas, Harri Kokkola, Oleg Dubovik, Vassilis Amiridis, Antti Arola, Nicolas Bellouin, Angela Benedetti, Merete Bilde, Sara Blichner, Stefano Decesari, Annica M. L. Ekman, Carlos Pérez García‐Pando, Silke Gross, Edward Gryspeerdt, Otto Hasekamp, Ralph A. Kahn, Anton Laakso, Ulrike Lohmann, Louis Marelle, Andreas H. Massling, Cathrine Lund Myhre, Mira Pöhlker, Johannes Quaas, Tomi Raatikainen, Ilona Riipinen, Julia Schmale, Patric Seifert, Henrik Skov, Chris Smith, Moa K. Sporre, Philip Stier, Trude Storelvmo, Kostas Tsigaridis, Bastiaan van Diedenhoven, Annele Virtanen, Ulla Wandinger, Laura J. Wilcox, Paul Zieger   +40 more
wiley   +1 more source

Seasonal Ice Cover Could Allow Liquid Lakes to Persist in a Cold Mars Paleoclimate

AGU Advances, Volume 7, Issue 1, February 2026.
Abstract Geomorphic and stratigraphic studies of Mars prove that extensive liquid water flowed and pooled on the surface early in Mars' history. Martian paleoclimate models, however, have difficulty simulating climate conditions warm enough to maintain liquid water on early Mars.
Eleanor L. Moreland, Sylvia G. Dee, Yueyang Jiang, Grace Bischof, Michael A. Mischna, Nyla Hartigan, James M. Russell, John E. Moores, Kirsten L. Siebach   +8 more
wiley   +1 more source

The rotation and Galactic kinematics of mid M dwarfs in the Solar Neighborhood

, 2015
Rotation is a directly-observable stellar property, and drives magnetic field generation and activity through a magnetic dynamo. Main sequence stars with masses below approximately 0.35Msun (mid-to-late M dwarfs) are fully-convective, and are expected to
Berta-Thompson, Zachory K., Charbonneau, David, Dittmann, Jason A., Irwin, Jonathan, Newton, Elisabeth R., West, Andrew A.   +5 more
core   +1 more source

Bursty Precipitation of Relativistic Electrons Unveiled by CIRBE/REPTile‐2 Measurements and Their Physical Implications

AGU Advances, Volume 7, Issue 1, February 2026.
Abstract Energetic electron precipitation plays a pivotal role in shaping Earth's radiation belt dynamics and drives significant physical and chemical changes in the upper atmosphere. However, the detailed mechanisms governing the loss of relativistic electrons have remained unclear, largely due to the limited energy coverage and coarse resolution of ...
Zheng Xiang, Xinlin Li, Daniel N. Baker, Qianli Ma, Yang Mei, Declan O’Brien, Hong Zhao, David Brennan, Theodore Sarris, Yoshizumi Miyoshi, Yoshiya Kasahara, Takefumi Mitani, Takeshi Takashima, Michael A. Temerin   +13 more
wiley   +1 more source

Analyzing Geomagnetic Data From the Dusheti Observatory During the Intense Magnetic Storms of 2024

Earth and Space Science, Volume 13, Issue 2, February 2026.
Abstract Geomagnetic storms, intense disturbances in the Earth's magnetosphere, pose risks to both technology and human activity in space. In this study, we analyzed geomagnetic field measurements from the Dusheti Observatory in Georgia during the intense geomagnetic storms of March 3, March 24, and 11 May 2024.
Oleg Kharshiladze, Luka Tsulukidze, Aleksandre Ghurchumelia, Luca Sorriso‐Valvo, Khatuna Elbakidze, Emiliya Yordanova, Tamaz Matiashvili   +6 more
wiley   +1 more source

Lead and Floe Detection From CryoSat‐2 Radar and ICESat‐2 Laser Altimetry

Earth and Space Science, Volume 13, Issue 2, February 2026.
Abstract Differences in satellite sampling affect their ability to resolve small‐scale features over Arctic sea ice. For CryoSat‐2 (CS2) and ICESat‐2 (IS2) these differences are driven by geometric (footprint resolution) and radiometric (radar or laser) sampling.
R. Tilling, A. Egido, J. Harbeck, N. Kurtz, A. Petty, A. Ridout, A. Shepherd, J. Wimert, D. Yi   +8 more
wiley   +1 more source

Applying Hpo Indices to Empirical Thermospheric Density Models During Geomagnetic Storms

Earth and Space Science, Volume 13, Issue 2, February 2026.
Abstract Accurate atmospheric drag modeling is essential for precise orbit determination and prediction of Low Earth Orbit satellites. A key component is the thermospheric density, typically estimated using empirical models driven by geomagnetic activity indices such as the 3‐hr Kp or ap.
Kemin Zhu, Jizhang Sang, Xianjie Li, Lei Liu, Yangbo Qian, Shengfu Xia   +5 more
wiley   +1 more source

Clustering with phylogenetic tools in astrophysics

, 2015
Phylogenetic approaches are finding more and more applications outside the field of biology. Astrophysics is no exception since an overwhelming amount of multivariate data has appeared in the last twenty years or so. In particular, the diversification of
Fraix-Burnet, Didier
core   +1 more source