Results 121 to 130 of about 2,175 (190)

Poster Session 4

open access: yes
Pregnancy, Volume 1, Issue S1, January 2025.
wiley   +1 more source

The Miscibility of Hydrogen and Water in Planetary Atmospheres and Interiors

open access: yesThe Astrophysical Journal Letters
Many planets in the solar system and across the Galaxy have hydrogen-rich atmospheres overlying more heavy element-rich interiors with which they interact for billions of years.
Akash Gupta   +2 more
doaj   +1 more source

Transmission Spectroscopy of the Habitable Zone Exoplanet LHS 1140 b with JWST/NIRISS

open access: yesThe Astrophysical Journal Letters
LHS 1140 b is the second-closest temperate transiting planet to Earth with an equilibrium temperature low enough to support surface liquid water. At 1.730 ± 0.025 R _⊕ , LHS 1140 b falls within the radius valley separating H _2 -rich mini-Neptunes from ...
Charles Cadieux   +22 more
doaj   +1 more source

TESS Hunt for Young and Maturing Exoplanets (THYME). XII. A Young Mini-Neptune on the Upper Edge of the Radius Valley in the Hyades Cluster

open access: yesThe Astronomical Journal
We present the discovery and characterization of TOI-4364b, a young mini-Neptune in the tidal tails of the Hyades cluster, identified through TESS transit observations and ground-based follow-up photometry.
Adam Distler   +21 more
doaj   +1 more source

The Transiting Multi-planet System HD 3167: A 5.7 M Super-Earth and an 8.3 M Mini-Neptune [PDF]

open access: bronze, 2017
D. Gandolfi   +44 more
openalex   +1 more source

Constraining Atmospheric Composition from the Outflow: Helium Observations Reveal the Fundamental Properties of Two Planets Straddling the Radius Gap

open access: yesThe Astronomical Journal
TOI-836 is a ∼2–3 Gyr K dwarf with an inner super Earth ( R  = 1.7 R _⊕ , P = 3.8 days) and an outer mini-Neptune ( R  = 2.6 R _⊕ , P = 8.6 days). JWST/NIRSpec 2.8–5.2 μ m transmission spectra are flat for both planets.
Michael Zhang   +15 more
doaj   +1 more source

UEG Week 2024 Poster Presentations

open access: yes
United European Gastroenterology Journal, Volume 12, Issue S8, Page 665-1360, October 2024.
wiley   +1 more source

The Discovery and Follow-up of Four Transiting Short-period Sub-Neptunes Orbiting M Dwarfs

open access: yesThe Astronomical Journal
Sub-Neptunes with radii of 2–3 R _⊕ are intermediate in size between rocky planets and Neptune-sized planets. The orbital properties and bulk compositions of transiting sub-Neptunes provide clues to the formation and evolution of close-in small planets ...
Yasunori Hori   +102 more
doaj   +1 more source

Modeling Noncondensing Compositional Convection for Applications to Super-Earth and Sub-Neptune Atmospheres

open access: yesThe Astrophysical Journal
Compositional convection is atmospheric mixing driven by density variations caused by compositional gradients. Previous studies have suggested that compositional gradients of atmospheric trace species within planetary atmospheres can impact convection ...
Namrah Habib, Raymond T. Pierrehumbert
doaj   +1 more source

Jupiter Science Enabled by ESA's Jupiter Icy Moons Explorer. [PDF]

open access: yesSpace Sci Rev, 2023
Fletcher LN   +49 more
europepmc   +1 more source

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