Results 41 to 50 of about 3,044 (177)

The Census of Exoplanets in Visual Binaries: Population Trends from a Volume-Limited Gaia DR2 and Literature Search

Frontiers in Astronomy and Space Sciences, 2021
We present results from an extensive search in the literature and Gaia DR2 for visual co-moving binary companions to stars hosting exoplanets and brown dwarfs within 200 pc.
Clémence Fontanive, Daniella Bardalez Gagliuffi   +1 more
doaj   +1 more source

Exoplanet science 2.0 [PDF]

Nature, 2018
The study of life on and off Earth needs unified funding and a coherent plan, say Caleb Scharf, Debra Fischer and Victoria Meadows. The study of life on and off Earth needs unified funding and a coherent plan, say Caleb Scharf, Debra Fischer and Victoria Meadows.
Caleb, Scharf, Debra, Fischer, Victoria, Meadows   +2 more
openaire   +2 more sources

Acceleration in Exoplanet Magnetospheres

Symmetry, 2023
We briefly review the various acceleration mechanisms working in exoplanetary magnetospheres. The proposed scenarios are based on the investigation of planetary magnetospheres of the Solar System. Primary attention is paid to Earth and Jupiter, as the most characteristic examples of the various types of magnetospheric features determining different ...
Elena Belenkaya, Igor Alexeev
openaire   +1 more source

Effect of Laboratory Reagents for Cleaning Modern Contamination on the δ15N Integrity of Nitrogen‐Poor Samples

Rapid Communications in Mass Spectrometry, Volume 40, Issue 19, 15 October 2026.
ABSTRACT Rationale Nitrogen isotope values have been widely used for tracing ancient biogeochemical processes, but contaminant‐sensitive materials, such as Precambrian sedimentary rocks, meteorites, or returned extraterrestrial samples, often have low nitrogen levels and are thus vulnerable to modern organic contamination.
Kunmanee Bubphamanee, Andrew Schauer, Roger Buick   +2 more
wiley   +1 more source

Reflected Spectroscopy of Small Exoplanets II: Characterization of Terrestrial Exoplanets

The Astronomical Journal, 2022
Abstract A space telescope capable of high-contrast imaging has been recognized as the avenue toward finding terrestrial planets around nearby Sun-like stars and characterizing their potential habitability. It is thus essential to quantify the capability of reflected light spectroscopy obtained through direct imaging for terrestrial ...
Mario Damiano, Renyu Hu
openaire   +3 more sources

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

Journal 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, Xiner Liu, Andres Felipe Zambrano, Luc Paquette, Amanda Barany, Jaclyn Ocumpaugh, Ryan S. Baker, Jeff Ginger   +7 more
wiley   +1 more source

The Science of Exoplanets and Their Systems [PDF]

Astrobiology, 2013
A scientific forum on "The Future Science of Exoplanets and Their Systems," sponsored by Europlanet and the International Space Science Institute (ISSI) and co-organized by the Center for Space and Habitability (CSH) of the University of Bern, was held during December 5 and 6, 2012, in Bern, Switzerland.
Lammer, Helmut, Blanc, Michel, Benz, Willy, Fridlund, Malcolm, Foresto, Vincent Coudé Du, Güdel, Manuel, Rauer, Heike, Udry, Stephane, Bonnet, Roger-Maurice, Falanga, Maurizio, Charbonneau, David, Helled, Ravit, Kley, Willy, Linsky, Jeffrey, Elkins-Tanton, Linda T., Alibert, Yann, Chassefière, Eric, Encrenaz, Therese, Hatzes, Artie P., Lin, Douglas, Liseau, Rene, Lorenzen, Winfried, Raymond, Sean N.   +22 more
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Massive Rocky Planets May Suppress Deep Melting

AGU 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

The NASA High-Resolution Speckle Interferometric Imaging Program: Validation and Characterization of Exoplanets and Their Stellar Hosts

Frontiers in Astronomy and Space Sciences, 2021
Starting in 2008, NASA has provided the exoplanet community an observational program aimed at obtaining the highest resolution imaging available as part of its mission to validate and characterize exoplanets, as well as their stellar environments, in ...
Steve B. Howell, Nicholas J. Scott, Rachel A. Matson, Mark E. Everett, Elise Furlan, Crystal L. Gnilka, David R. Ciardi, Kathryn V. Lester   +7 more
doaj   +1 more source

Abundances in Stars with Exoplanets [PDF]

Symposium - International Astronomical Union, 2004
Extensive spectroscopic studies of stars with and without planets have concluded that stars hosting planets are significantly more metal-rich than those without planets. More subtle trends of different chemical elements begin to appear as the number of detected extrasolar planetary systems continues to grow.
openaire   +2 more sources