Results 51 to 60 of about 14,028,364 (216)
Hyades Member K2-136c: The Smallest Planet in an Open Cluster with a Precisely Measured Mass
The Astronomical Journal, 2023 K2-136 is a late-K dwarf (0.742 ± 0.039 M _⊙ ) in the Hyades open cluster with three known, transiting planets and an age of 650 ± 70 Myr. Analyzing K2 photometry, we found that planets K2-136b, c, and d have periods of 8.0, 17.3, and 25.6 days and radii
Andrew W. Mayo +41 more
doaj +1 more source
A Solar Analog Model for Decrease in Far Ultraviolet Irradiance Under a Grand Minimum
Earth and Space Science, Volume 13, Issue 9, September 2026.Abstract Solar analog field stars having a range of magnetic activity can provide an estimate of solar spectral irradiance (SSI) variability relevant to understanding the Sun's influence on terrestrial climate. This approach is particularly useful for far ultraviolet (FUV) irradiance that cannot be observed from the Earth surface.
D. Lubin, C. Melis, D. Tytler
wiley +1 more source
Machine learning approaches for exoplanet detection.
, 2022 Machine learning approaches for exoplanet detection.
Sara Cuéllar (12634749) +6 more
core +1 more source
Exoplanet detection yield of a space-based Bracewell interferometer from small to medium satellites [PDF]
, 2020 peer reviewedSpace-based nulling interferometry is one of the most promising solutions to spectrally characterize the atmosphere of rocky exoplanets in the mid-infrared (3 to 20 μm).
Dandumont, Colin +5 more
core +1 more source
Modeling Exoplanet Demographics Across Detection Methods
Exoplanet demographics leverages large-scale survey data to give us population-level in- sight to questions of planet formation, evolution, and habitability.
Bergsten, Galen Justice
core +5 more sources
An Eccentric Sub-Neptune Moving Into the Evaporation Desert
The Astrophysical Journal LettersThough missions such as Kepler, K2, and TESS have discovered >2000 sub-Neptune and Neptunian planets, there is a dearth of such planets at close-in ( P ≲ 3 days) orbits. This feature, called the Neptune desert or the evaporation desert, is believed to be
Sydney A. Jenkins +33 more
doaj +1 more source
The Prospect of Detecting Volcanic Signatures on an ExoEarth Using Direct Imaging
The Astronomical Journal, 2023 The James Webb Space Telescope (JWST) has provided the first opportunity of studying the atmospheres of terrestrial exoplanets and estimating their surface conditions.
Colby M. Ostberg +8 more
doaj +1 more source
Journal of Geophysical Research: Space Physics, Volume 131, Issue 9, September 2026.Abstract The Earth's strongest natural radio emission is Auroral Kilometric Radiation (AKR), which is correlated with auroral intensity, and is a barometer for space weather. AKR is generated by the electron cyclotron maser instability, with sources on auroral field lines. Previous work on AKR and radio emissions from other planets (or stars) points to
Alexandra Ruth Fogg +9 more
wiley +1 more source
The Astronomical JournalThe correlation between inner super-Earths (SEs) and outer cold Jupiters (CJs) provides an important constraint on the formation and dynamical evolution of planetary systems.
Quanyi Liu +3 more
doaj +1 more source
Inferring Io's Internal Properties by Combining Gravity Measurements and Volcanic Activity
Journal of Geophysical Research: Planets, Volume 131, Issue 9, September 2026.Abstract With its extreme geological activity, Io represents an archetype for tidally heated exoplanets/moons and provides insight into early stages of terrestrial planet evolution. Decades of ground‐based observations and multiple space missions have refined our understanding of Io, yet it remains debated where inside Io the tidal heating takes place.
A. Veenstra +2 more
wiley +1 more source