Results 81 to 90 of about 1,218 (212)

Sub-Neptunes Show a Stronger Correlation with Cold Jupiters than Super-Earths Especially in Metal-rich Systems

open access: yesThe Astrophysical Journal Letters
The correlation between the inner small planets and cold giants encodes the formation and evolution of planetary systems. It remains unclear if the correlation differs on the two sides of the radius valley.
Di-Chang Chen   +4 more
doaj   +1 more source

Planet formation – implication of statistical properties of exoplanets

open access: yesJournal of Physics: Conference Series, 2010
Models of planetary formation are developed based on the observation of our Solar System, star-forming regions and circumstellar disks and on an the ever increasing number of exoplanetary systems. The solar nebula theory and the planetesimal hypothesis are discussed.
openaire   +1 more source

Cloud formation in exoplanet atmospheres : nucleation of small molecular clusters

open access: yes, 2023
It has been inferred that many exoplanets host clouds in their atmospheres. Understanding the processes through which these clouds form, and being able to model them is essential for our understanding of their climate and to explain our observations.
openaire   +3 more sources

The Polar Orbit of TOI-2374 b, a Planet in the Neptunian Ridge

open access: yesThe Astronomical Journal
The “Neptunian ridge” is a recently identified peak in the frequency of planets with sizes between that of Neptune and Saturn orbiting their host stars with periods between 3 and 6 days.
Samuel W. Yee   +13 more
doaj   +1 more source

Haze Formation in Warm H2-rich Exoplanet Atmospheres [PDF]

open access: green, 2020
Chao He   +10 more
openalex   +1 more source

Characterisation of exoplanet host stars: A window into planet formation [PDF]

open access: yesProceedings of the International Astronomical Union, 2017
AbstractThe detection of thousands of planets orbiting stars other than the Sun has shown that planets are common throughout the Galaxy. However, the diversity of systems found has also raised many questions regarding the process of planet formation and evolution. Interestingly, but perhaps not unexpectedly, crucial information to constraint the planet
openaire   +1 more source

The Compositions of the HR 8799 Planets Reflect Accretion of Both Solids and Metal-enriched Gas

open access: yesThe Astrophysical Journal
With four giant planets ( m  ∼ 5 M _Jup −10 M _Jup , T _eff  ∼ 900–1200 K) orbiting between 15 and 70 au, HR 8799 provides an unparalleled test bed for studying giant planet formation and probing compositional trends across the protoplanetary disk.
Jerry W. Xuan   +26 more
doaj   +1 more source

Dependence of Planet Populations on Stellar Mass and Metallicity: A Pebble-accretion-based Planet Population Synthesis Model

open access: yesThe Astrophysical Journal
The formation and evolution of planetary systems are linked to their host stellar environment. In this study, we employ a pebble-accretion-based planet population synthesis model to explore the correlation between planetary properties and stellar mass ...
Mengrui Pan   +5 more
doaj   +1 more source

Testing the Origin of Hot Jupiters with Atmospheric Surveys

open access: yesThe Astrophysical Journal
In spite of their long detection history, the origin of hot Jupiters remains to be resolved. While dynamical evidence suggests high-eccentricity migration is most likely, conflicts remain when considering hot Jupiters as a population in the context of ...
Lina D’Aoust   +3 more
doaj   +1 more source

Symposium Review: Wild Animal Welfare is in Our Backyards

open access: yes
The Bulletin of the Ecological Society of America, Volume 107, Issue 2, April 2026.
Bonnie Fairbanks Flint   +3 more
wiley   +1 more source

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