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The Fuzziness of Giant Planets’ Cores [PDF]

open access: yesThe Astrophysical Journal Letters, 2017
Abstract Giant planets are thought to have cores in their deep interiors, and the division into a heavy-element core and hydrogen–helium envelope is applied in both formation and structure models. We show that the primordial internal structure depends on the planetary growth rate, in particular, the ratio of heavy elements accretion to ...
Ravit Helled   +2 more
openaire   +6 more sources

The Atmospheres of the Giant Planets [PDF]

open access: yesNature, 1934
Peer Reviewed ; http://deepblue.lib.umich.edu/bitstream/2027.42/62844/1/134148a0 ...
Adel, Arthur, Slipher, V. M.
openaire   +5 more sources

Giant Planet Lightning in Nonideal Gases

open access: yesThe Planetary Science Journal, 2023
Lightning has been directly observed or inferred on all giant planets, generally accepted to be occurring in their water clouds. However, much as Earth has both cloud–cloud and cloud–ground lightning, this does not mean all flashes occur in a narrow ...
Yury S. Aglyamov   +6 more
doaj   +1 more source

Implications of the TTV-detection of close-in terrestrial planets around M stars for their origin and dynamical evolution

open access: yesEPJ Web of Conferences, 2011
It has been shown that an Earth-size planet or a super-Earth, in resonance with a transiting Jupiter-like body around an M star, can create detectable TTV signals (Kirste & Haghighipour, 2011).
Rastegar S., Haghighipour N.
doaj   +1 more source

Dynamos of giant planets

open access: yesProceedings of the International Astronomical Union, 2006
AbstractPossibilities and difficulties of applying the theory of magnetic field generation by convection flows in rotating spherical fluid shells to the Giant Planets are outlined. Recent progress in the understanding of the distribution of electrical conductivity in the Giant Planets suggests that the dynamo process occurs predominantly in regions of ...
Busse, F.H., Simitev, R.
openaire   +4 more sources

Exoplanets around Red Giants: Distribution and Habitability

open access: yesGalaxies, 2023
As the search for exoplanets continues, more are being discovered orbiting Red Giant stars. We use current data from the NASA Exoplanet Archive to investigate planet distribution around Red Giant stars and their presence in the host’s habitable zone.
Ruixuan E. Chen   +4 more
doaj   +1 more source

Rings Beyond the Giant Planets [PDF]

open access: yes, 2018
Until 2013, only the giant planets were known to host ring systems. In June 2013, a stellar occulation revealed the presence of narrow and dense rings around Chariklo, a small Centaur object that orbits between Saturn and Uranus. Meanwhile, the Cassini spacecraft revealed evidence for the possible past presence of rings around the Saturnian satellites ...
Sicardy, Bruno   +5 more
openaire   +4 more sources

Building giant-planet cores at a planet trap [PDF]

open access: yesAstronomy & Astrophysics, 2007
in press in Astronomy and ...
Morbidelli, A.   +3 more
openaire   +5 more sources

Formation of the Giant Planets [PDF]

open access: yesProgress of Theoretical Physics, 1980
The structure of a gaseous envelope surrounding a icy/rocky core is studied in consideration of radiative transfer. It is found that when the core grows beyond a critical core mass, the envelope cannot be in equilibrium and collapses onto the core to form a proto-giant planet.
openaire   +4 more sources

Formation of ammonia–helium compounds at high pressure

open access: yesNature Communications, 2020
Helium is generally considered too inert to be present in giant ice planet mantles. The authors, by first-principles calculations and crystal structure searches, find stable ammonia–helium compounds at the conditions of Uranus and Neptune’s upper mantles,
Jingming Shi   +5 more
doaj   +1 more source

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