Results 151 to 160 of about 378,163 (279)

Astronomy Online

This website, authored by Ricky Leon Murphy of Astronomy Online, is a collection of references, images, and information for general astronomy. This work covers topics from the basics of science and observation through the solar system, stars, cosmology ...
Murphy, Ricky Leon
core  

Quantifying Water Ice in Regolith Mixtures via Infrared (1.2–2.5 μm) Reflectance Model Parametrization

Journal of Geophysical Research: Planets, Volume 131, Issue 10, October 2026.
Abstract Water ice deposits occur on inner solar system bodies in sunlit and shadowed terrains. We develop approaches to remotely determine the mixing mode with regolith (areal vs. intimate), ice grain size, and abundance that reveal processes of ice formation, emplacement, and evolution.
V. V. Kachmar, B. L. Ehlmann
wiley   +1 more source

The Computed Microwave Spectrum of the Protonated Fullerene C₆₀H^. [PDF]

ACS Earth Space Chem
Nemes L, Oomens J, Esposito VJ, Boudon V, Tielens AGGM.   +4 more
europepmc   +1 more source

Characterization of the Small‐Scale UV Contrasts at Low Latitudes of Venus as Seen by the UVI Camera Onboard Akatsuki

Journal of Geophysical Research: Planets, Volume 131, Issue 10, October 2026.
Abstract We characterize ultraviolet (UV) contrasts of Venus at the cloud top level, ∼70 km altitude, at low latitudes. We define the contrast as the albedo difference between bright and dark points at low latitudes of a single image. Our target is small‐scale contrast features, spanning 60–80 km, as seen in the reflected UV images acquired at 283 and ...
Hyeonju Kang, Yeon Joo Lee, Atsushi Yamazaki   +2 more
wiley   +1 more source

Venus reawakening. [PDF]

Nat Commun
Maia J, Lefèvre M.
europepmc   +1 more source

Removing the Effect of Source Structure From Correlated VLBI Data

Radio Science, Volume 61, Issue 10, October 2026.
Abstract Recent studies suggest that in geodetic very long baseline interferometry (VLBI) the assumption of sources being point‐like results in a significant residual error introduced by the effect of source structure. Our aim is to remove the impact of source structure from geodetic VLBI data right after the correlation step. For this purpose, we have
Frédéric Jaron, Víctor Pérez‐Díez, Hana Krásná, Johannes Böhm, Patrick Charlot, Arnaud Collioud, Jakob Gruber, Iván Martí‐Vidal, Axel Nothnagel   +8 more
wiley   +1 more source

A direct black-hole mass measurement in a little red dot at high redshift. [PDF]

Nature
Juodžbalis I, Marconcini C, D'Eugenio F, Maiolino R, Marconi A, Übler H, Scholtz J, Ji X, Jones GC, Perna M, Arribas S, Bennett JS, Bromm V, Bunker AJ, Carniani S, Charlot S, Cresci G, Dayal P, Egami E, Fabian A, Inayoshi K, Isobe Y, Ivey LR, Koudmani S, Laporte N, Liu B, Lyu J, Mazzolari G, Monty S, Parlanti E, Pérez-González PG, Robertson B, Schneider R, Sijacki D, Tacchella S, Trinca A, Valiante R, Volonteri M, Witstok J, Zhang S.   +39 more
europepmc   +1 more source

Ionospheric Scintillation Induced by Hot Flow Anomalies via Particle Precipitation

AGU Advances, Volume 7, Issue 7, October 2026.
Abstract Ionospheric scintillation disrupts trans‐ionospheric radio signals and represents significant challenges for critical communication and navigation systems. Here we document that hot flow anomalies (HFAs), transient disturbances formed near Earth's bow shock, can contribute to scintillation near the cusp.
Jia‐Chen Zhao, Qing‐He Zhang, Zhong‐Wei Yang, Duan Zhang, Kjellmar Oksavik, Bo‐Yi Wang, Yu‐Zhang Ma, Zan‐Yang Xing, Yong Wang, Ling‐Xin Zhao, Xiang‐Yu Wang, Jin Guo, Shi‐Mou Wang, Cai‐Jun Yan, Bian‐Long Zhao, Hong‐Kai Zhang, Chang‐Yue Zhao   +16 more
wiley   +1 more source

Galaxy Evolution with Manifold Learning. [PDF]

Entropy (Basel)
Takeuchi TT, Cooray S, Kano RR.
europepmc   +1 more source

Erupted Volume During the 2014–2023 Semisopochnoi Unrest and Eruption Constrained by Multi‐Platform InSAR and Volcanic Gas Observations

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 10, October 2026.
Abstract Volcano deformation data provide important constraints on magma dynamics during volcanic unrest and eruptions. From these observations, we can estimate subsurface pressure changes and relate them to volume change in the reservoir. However, because magma and rock are compressible, this volume change cannot be directly equated with eruptive ...
Mario Angarita, Valerie Wasser, Ronni Grapenthin, Allan Lerner, Taryn Lopez, Revathy M. Parameswaran, John Lyons   +6 more
wiley   +1 more source