Results 71 to 80 of about 26,106 (206)

Uranus' Long‐Term Thermospheric Cooling Is Unlikely to Be Primarily Driven by the Solar Wind

Geophysical Research Letters, Volume 52, Issue 24, 28 December 2025.
Abstract Over the last 40 yrs, Uranus' thermospheric temperature has decreased by ∼8 K/yr. Here we show that this is less likely to be driven by solar wind kinetic power than previously thought. We determine that the solar wind kinetic power at Uranus has been increasing since the start of solar cycle 24 in 2009, while Uranus's thermospheric ...
Jamie M. Jasinski, Henrik Melin, James A. Sinclair, Sophia Zomerdijk‐Russell, Nick Achilleos, Carol Paty   +5 more
wiley   +1 more source

Investigating the Physical Properties of Dusty Star-forming Galaxies at z ≳ 1.5 in the GOODS-South Field Using JWST

The Astrophysical Journal
We investigated how well the physical properties of progenitors of present-day massive spheroidal galaxies (protospheroids) can be constrained by the JWST Advanced Deep Extragalactic Survey (JADES) in the GOODS-South field, which benefits from extensive ...
Dipanjan Mitra, Mattia Negrello, Gianfranco De Zotti   +2 more
doaj   +1 more source

An Information-Theoretic Approach to Optimize JWST Observations and Retrievals of Transiting Exoplanet Atmospheres

, 2017
We provide an example of an analysis to explore the optimization of observations of transiting hot jupiters with JWST to characterize their atmospheres, based on a simple three-parameter forward model. We construct expansive forward model sets for eleven
Burrows, Adam, Deming, Drake, Howe, Alex R.   +2 more
core   +1 more source

Satellites and Small Bodies With ALMA: Insights Into Solar System Formation and Evolution

AGU Advances, Volume 6, Issue 6, December 2025.
Abstract Our understanding of the formation and evolution of planetary systems has made major advances in the past decade. This progress has been driven in large part by the Atacama Large Millimeter/submillimeter Array (ALMA), which has given us an unprecedented view of solar system bodies themselves, and of the structure and chemistry of forming ...
Katherine de Kleer, Michael E. Brown, Martin Cordiner, Richard Teague   +3 more
wiley   +1 more source

The BoRG-JWST Survey: Analogs at z ∼ 8 to the UV-luminous Galaxy Population at z ≳ 10

The Astrophysical Journal
The population of bright galaxies at z ≳ 10 discovered by JWST, including the so-called “blue monsters,” has been difficult to reconcile with standard galaxy evolution models.
Sofía Rojas-Ruiz, Guido Roberts-Borsani, Takahiro Morishita, Antonello Calabrò, Micaela Bagley, Tommaso Treu, Steven L. Finkelstein, Massimo Stiavelli, Michele Trenti, L. Y. Aaron Yung   +9 more
doaj   +1 more source

Desvendando o Endereço Físico do Telescópio James Webb

Revista Brasileira de Ensino de Física
A localização espacial do futuro telescópio James Webb Satellite Telescope (JWST), em uma posição conhecida como L2 em relação ao sistema Sol-Terra, nos remete ao mais celebrado problema da dinâmica, que é o problema de três corpos.
Elaine Cristina Ferreira Silva Fortes, Franciane Azevedo, Marcos Kolland   +2 more
doaj   +1 more source

A Long‐Term Study of Jupiter's Equatorial Winds at the Top of the Troposphere

Journal of Geophysical Research: Planets, Volume 130, Issue 12, December 2025.
Abstract Jupiter's equatorial atmosphere is covered by dense hazes that extend from the main cloud level to the lower stratosphere. These hazes are variable in optical depth and brightness, although the causes of these variations are unknown. James Webb Space Telescope (JWST) observations of the equatorial hazes in 2022 in near‐infrared wavelengths ...
M. Sánchez‐Arregui, A. Antuñano, R. Hueso, A. Sánchez‐Lavega   +3 more
wiley   +1 more source

Differencing and Coadding JWST Images with Matched Point-spread Function

The Astronomical Journal
We present an algorithm to derive difference images for data taken with JWST with matched point-spread functions (PSFs). It is based on the saccadic fast Fourier transform method but with revisions to accommodate the rotations and spatial variations of ...
Lei Hu, Lifan Wang
doaj   +1 more source

Phyllosilicate Infrared Spectral Features as Tracers of Aqueous Alteration in CM Chondrites and Implications for Remote Sensing of Hydrated Asteroids

Journal of Geophysical Research: Planets, Volume 130, Issue 12, December 2025.
Abstract CM (Mighei‐type) carbonaceous chondrites host abundant OH/H2O‐bearing phyllosilicates formed from water‐rock reactions in primitive planetesimals. Their infrared (IR) spectral features resemble those of C‐type asteroids, making laboratory analyses of CMs essential for interpreting asteroid observations.
W. M. Lawrence, B. L. Ehlmann
wiley   +1 more source

JWST/NIRISS and HST: Exploring the improved ability to characterize exoplanet atmospheres in the JWST era

Monthly Notices of the Royal Astronomical Society
ABSTRACT The Hubble Space Telescope has been a pioneering instrument for studying the atmospheres of exoplanets, specifically its WFC3 and STIS instruments. With the launch of JWST, we are able to observe larger spectral ranges at higher precision.
Chloe Fisher, Jake Taylor, Vivien Parmentier, Daniel Kitzmann, Jayne L Birkby, Michael Radica, Joanna Barstow, Jingxuan Yang, Giuseppe Morello   +8 more
openaire   +4 more sources