Results 41 to 50 of about 3,962,336 (149)
Mesoscale Modeling of Titan’s Shangri‐La Region: The Impact of Surface Properties on Winds
Journal of Geophysical Research: Planets, Volume 131, Issue 10, October 2026.Abstract The knowledge of Titan’s near‐surface atmosphere is sparse. The Huygens descent probe measured winds, and the multiple dune field observations and possible dust storms suggest active near‐surface dynamics. The Dragonfly rotorcraft lander will fly close to the surface in the Shangri‐La region, near the Huygens landing site, where complex dune ...
Maxence Lefèvre +5 more
wiley +1 more source
The Astronomical JournalLimb-resolved transmission spectroscopy has the potential to transform our understanding of exoplanetary atmospheres. By separately measuring the transmission spectra of the evening and morning limbs, these atmospheric regions can be individually ...
Matthew M. Murphy +18 more
doaj +1 more source
Propagation Dynamics of Fast Electron Beam and Its Electron Cyclotron Maser Emission
Journal of Geophysical Research: Space Physics, Volume 131, Issue 10, October 2026.Abstract Fast electron beams (FEBs) and coherent radio bursts both are very common plasma activity phenomena in the cosmos. The electron cyclotron maser (ECM) instability driven by FEBs trapped in magnetic fields can directly amplify radio wave radiations.
Ling Chen +3 more
wiley +1 more source
How uncertainties on stellar atmospheric parameters impact exoplanet studies? [PDF]
, 2017 Exoplanet properties depend on how well the host star is characterized. For instance, the stellar atmospheric parameters (i.e., effective temperature, surface gravity and overall metallicity) are needed to derive the stellar mass and radius by using ...
Blanco-Cuaresma, Sergi
core +1 more source
Helium Escape in Context: Comparative Signatures of Four Close-in Exoplanets
The Astrophysical JournalObservations of escaping atmospheres on close-in exoplanets show a wide range in the strength and morphology of He I 10830 Å and H I absorption. Scaling relations attempt to link the He I signal to X-ray and UV irradiation, mass loss, and bulk planetary ...
Anna Ruth Taylor +4 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
The Astrophysical Journal Supplement Series, 1998 44 pages, 19 figures, plain TeX, accepted to ApJS (companion to letter astro-ph/9712279)
Brown, T.M. +6 more
openaire +2 more sources
The Astrophysical JournalAbstract Interpretation of the ongoing efforts to simulate the atmospheres of potentially habitable terrestrial exoplanets requires that we understand the underlying dynamics and chemistry of such objects to a much greater degree than 1D or even simple 3D models enable.
Sainsbury-Martinez, F. +3 more
openaire +6 more sources
Metal Oxide Clusters in Gas-giant Exoplanet Atmospheres
The Astrophysical JournalThis study investigates the thermal stability and absorption of metal oxide clusters in exoplanetary atmospheres. Utilizing our thermochemical data, we analyze eight distinct cluster families: magnesium oxide (MgO), silicon monoxide (SiO), titanium ...
Deepak Bisht +8 more
doaj +1 more source
The Runaway Greenhouse Effect on Hycean Worlds
The Astrophysical Journal, 2023 Hycean worlds are a proposed subset of sub-Neptune exoplanets with substantial water inventories, liquid surface oceans, and extended hydrogen-dominated atmospheres favorable for habitability.
Hamish Innes +2 more
doaj +1 more source