Results 91 to 100 of about 3,427 (167)

Formation of Giant Planets by Gas Disk Gravitational Instability on Wide Orbits around Protostars with Varied Masses. II. Quadrupled Spatial Resolution and Beta Cooling

open access: yesThe Astrophysical Journal
Exoplanet demographics are sufficiently advanced to provide important constraints on theories of planet formation. While core and pebble accretion are preferred for rocky and icy planets, there appears to be a need for gas disk gravitational instability (
Alan P. Boss
doaj   +1 more source

Exploring the link between star and planet formation with Ariel. [PDF]

open access: yesExp Astron (Dordr), 2022
Turrini D   +24 more
europepmc   +1 more source

Searching for GEMS: TOI-5688 A b, a Low-density Giant Orbiting a High-metallicity Early M-dwarf

open access: yesThe Astronomical Journal
We present the discovery of a low-density planet orbiting the high-metallicity early M-dwarf TOI-5688 A b. This planet was characterized as part of the search for transiting giant planets ( R  ≳ 8 R _⊕ ) through the Searching for Giant Exoplanets around ...
Varghese Reji   +33 more
doaj   +1 more source

Searching for GEMS: Characterizing Six Giant Planets Around Cool Dwarfs

open access: yesThe Astronomical Journal
Transiting giant exoplanets around M-dwarf stars (GEMS) are rare, owing to the low-mass host stars. However, the all-sky coverage of TESS has enabled the detection of an increasingly large number of them to enable statistical surveys like the Searching ...
Shubham Kanodia   +44 more
doaj   +1 more source

Giant Outer Transiting Exoplanet Mass (GOT ‘EM) Survey. V. Two Giant Planets in Kepler-511 but Only One Ran Away

open access: yesThe Astronomical Journal
Systems hosting multiple giant planets are important laboratories for understanding planetary formation and migration processes. We present a nearly decade-long Doppler spectroscopy campaign from the HIRES instrument on the Keck-I telescope to ...
Yayaati Chachan   +8 more
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

The Heating Efficiency of Hot Jupiters from a Data-driven Perspective

open access: yesThe Astronomical Journal
The inflated radii of hot Jupiters have been explored by various theoretical mechanisms. By connecting planetary thermal evolution models with the observed properties of hot Jupiters using hierarchical Bayesian models, a theoretical parameter called the ...
Sheng Jin   +3 more
doaj   +1 more source

An exomoon survey of 70 cool giant exoplanets and the new candidate Kepler-1708 b-i. [PDF]

open access: yesNat Astron, 2022
Kipping D   +8 more
europepmc   +1 more source

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