Results 101 to 110 of about 2,912,496 (265)

Classification of Planetary Motion around Super-Jupiters and Brown Dwarfs

open access: yesUniverse
We investigate the orbital dynamics of an exosystem consisting of a solar-mass host star, a transiting body, and an Earth-size exoplanet within the framework of the generalized three-body problem.
Euaggelos E. Zotos   +2 more
doaj   +1 more source

Mapping Exoplanets

open access: yes, 2020
The varied surfaces and atmospheres of planets make them interesting places to live, explore, and study from afar. Unfortunately, the great distance to exoplanets makes it impossible to resolve their disk with current or near-term technology. It is still
A Shporer   +91 more
core   +1 more source

Electrical Resistivity of Liquid Fe‐16S‐2Si up to 13 GPa With Implications for the Adiabatic Heat Flux Through the Core of Exoplanet TRAPPIST‐1h

open access: yesJournal of Geophysical Research: Planets, Volume 130, Issue 10, October 2025.
Abstract Thermal convective processes in the liquid cores of terrestrial planetary bodies with the capacity to generate magnetic dynamos may be better characterized by thermal conductivity estimates of core conditions. The composition of the core of asteroid 4 Vesta as determined by geochemical studies of HED meteorites is used as an analog for the ...
E. M. Lenhart, W. Yong, R. A. Secco
wiley   +1 more source

Dynamical Study of the Exoplanet Host Binary System HD 106515 [PDF]

open access: yesPublications of the Astronomical Society of Australia, 2017
AbstractHD 106515 AB (STF1619 AB) is a high common proper motion and common radial velocity binary star system composed of two G-type bright stars located at 35 pc and separated by about 7 arcsec. This system was observed by theHipparcossatellite with a precision in distance and proper motion of 3 and 2%, respectively.
R. Barrena   +4 more
openaire   +1 more source

Amplifying Resonant Repulsion with Inflated Young Planets, Overlooked Inner Planets, and Nonzero Initial Δ

open access: yesThe Astrophysical Journal
Most multiplanet systems around mature (∼5 Gyr old) host stars are nonresonant. Even the near-resonant planet pairs still display 1%–2% positive deviation from perfect period commensurabilities (Δ) near first-order mean motion resonances (MMRs). Resonant
Yuancheng Xu, Fei Dai
doaj   +1 more source

New Frontiers for Terrestrial-sized to Neptune-sized Exoplanets In the Era of Extremely Large Telescopes [PDF]

open access: yes, 2019
Surveys reveal that terrestrial- to Neptune-sized planets (1 $< R
Boss, Alan   +22 more
core   +1 more source

On the Stability of Super-Earth Atmospheres

open access: yes, 2012
We investigate the stability of super Earth atmospheres around M stars using a 7-parameter, analytical framework. We construct stability diagrams in the parameter space of exoplanetary radius versus semi-major axis and elucidate the regions in which the ...
Heng, Kevin, Kopparla, Pushkar
core   +1 more source

Peering into the Black Box: Forward Modeling of the Uncertainty Budget of High-resolution Spectroscopy of Exoplanet Atmospheres

open access: yesAstronomical Journal
Ground-based high-resolution cross-correlation spectroscopy (HRCCS; R ≳ 15,000) is a powerful complement to space-based studies of exoplanet atmospheres.
A. Savel   +8 more
semanticscholar   +1 more source

Re‐Analysis of Pioneer Venus Data: Water, Iron Sulfate, and Sulfuric Acid are Major Components in Venus' Aerosols

open access: yesJournal of Geophysical Research: Planets, Volume 130, Issue 9, September 2025.
Abstract We present a new and transformative composition for Venus' cloud aerosols using previously uncharacterized data acquired by the Pioneer Venus Large Probe, which descended through Venus' atmosphere in 1978. This aerosol composition was extracted by re‐analyzing data acquired by the Large Probe Neutral Mass Spectrometer (LNMS) and re‐evaluating ...
R. Mogul   +3 more
wiley   +1 more source

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