Results 61 to 70 of about 6,856,607 (225)

How internal structure shapes the metallicity of giant exoplanets

open access: yesAstronomy & Astrophysics
Context . The composition and internal structure of gas giant exoplanets encode key information about their formation and evolution. Aims .
Lorenzo Peerani   +2 more
openaire   +2 more sources

Democratizing & Enhancing Exoplanet Research with the Unistellar Citizen Science Network & Astronomy Modeling Instruction [PDF]

open access: yes
This thesis explores the potential in democratizing and augmenting exoplanet research via citizen science by utilizing a global network of portable image-intensified computerized telescopes, and inquiry-based astronomy instruction. A central objective is
Peluso, Daniel O’Conner
core   +1 more source

Impacting Atmospheres: How Late-stage Pollution Alters Exoplanet Composition

open access: yesThe Astrophysical Journal
The atmospheric composition of exoplanets is often considered as a probe of the planet’s formation conditions. How exactly the initial chemical memory may be altered from the birth to the final state of the planet, however, remains unknown.
Emilia Vlahos   +3 more
doaj   +1 more source

Leveraging Multimodal Large Language Models to Analyse Student Exploration Behaviours in Educational Game Environments

open access: yesJournal of Computer Assisted Learning, Volume 42, Issue 4, August 2026.
ABSTRACT Background Video data provides rich opportunities to examine student behaviour in game‐based learning environments, capturing not only observable actions but also subtle indicators of cognitive engagement. However, traditional video analysis is labor‐intensive, and current applications of AI to this task are limited by models trained on ...
Yiqiu Zhou   +7 more
wiley   +1 more source

Revised exoplanet radii and habitability using Gaia Data Release 2

open access: yes, 2018
Accurate stellar properties are crucial for determining exoplanet characteristics. Gaia DR2 presents revised distances, luminosities, and radii for 1.6 billion stars. Here, we report the calculation of revised radii and densities for 320 exoplanets using
Johns, Daniel   +6 more
core   +1 more source

Exoplanet imaging data challenge: benchmarking the various image processing methods for exoplanet detection [PDF]

open access: yes, 2020
The Exoplanet Imaging Data Challenge is a community-wide effort meant to offer a platform for a fair and common comparison of image processing methods designed for exoplanet direct detection. For this purpose, it gathers on a dedicated repository (Zenodo)
Desgrange, Célia   +88 more
core   +1 more source

The Not-so Dramatic Effect of Advective Flows on Gas Accretion

open access: yesThe Astrophysical Journal
Super-Earths and mini-Neptunes are the most common types of exoplanets discovered, yet the physics of their formation are still debated. Standard core accretion models in gas-rich environments find that typical mini-Neptune mass planets would blow up ...
Vincent Savignac, Eve J. Lee
doaj   +1 more source

Massive Rocky Planets May Suppress Deep Melting

open access: yesAGU Advances, Volume 7, Issue 4, August 2026.
Abstract Melting properties of silicates are critical to understanding the thermal evolution of rocky planetary interiors. In the deep mantles of massive rocky planets, post‐post‐spinel Mg2SiO4 ${\text{Mg}}_{2}{\text{SiO}}_{4}$ is potentially one of the most abundant mineral phases, yet its melting behavior remains unconstrained. Here, we determine the
Donghao Zheng, Yihang Peng, Jie Deng
wiley   +1 more source

A Theory for the Global Wind Energy Dissipation Across Climates

open access: yesAGU Advances, Volume 7, Issue 5, August 2026.
Abstract Atmospheric winds play a key role in shaping climate, ecosystems, and infrastructure. The energy that drives the winds is generated by the atmospheric heat engine. However, traditional entropy‐budget descriptions of this heat engine rely on poorly constrained microscale processes, limiting their predictive power.
Malte F. Jansen   +2 more
wiley   +1 more source

Interactions of Sublimated Frost With Volcanic Plumes: Modeling Io's SO2 Atmosphere Using the DSMC Method

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 7, July 2026.
Abstract Io's tenuous atmosphere consists primarily of sulfur dioxide (SO2 ${\text{SO}}_{2}$) with observed column densities of approximately 1016−1017 $1{0}^{16}-1{0}^{17}$ cm−2 ${\text{cm}}^{-2}$. However, it remains uncertain whether the sublimation of SO2 ${\text{SO}}_{2}$ surface frost or volcanic outgassing is the primary source of the SO2 ...
Leander Schlarmann   +4 more
wiley   +1 more source

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