Results 91 to 100 of about 26,344 (179)

The Architectural Design Rules of Solar Systems based on the New Perspective

, 2009
On the basis of the Lunar Laser Ranging Data released by NASA on the Silver Jubilee Celebration of Man Landing on Moon on 21st July 1969-1994, theoretical formulation of Earth-Moon tidal interaction was carried out and Planetary Satellite Dynamics was ...
A Johnson, AN Halliday, Bijay Kumar Sharma, BK Sharma, C Broeg, C Hellier, CL Cook, D Apes, DD Sasselov, DD Sasselov, DP Rubicam, F Marzari, G Israelian, GA Krasinsky, GA Krasinsky, GE Williams, GH Darwin, GH Darwin, H Tanaka, JE Chambers, JJ Dukla, JJ Lissauer, JP Zahn, KJ Epstein, M Reidemeister, ME Zolansky, N Murray, NC Santos, P Goldreich, RP Nelson, S Ida, S Leschiutta, SN Cuzzi, T Jong de   +33 more
core   +1 more source

Elemental ratios in stars vs planets

, 2015
Context. The chemical composition of planets is an important constraint for planet formation and subsequent differentiation. While theoretical studies try to derive the compositions of planets from planet formation models in order to link the composition
Alibert, Yann, Leya, Ingo, Marboeuf, Ulysse, Mezger, Klaus, Thiabaud, Amaury   +4 more
core   +1 more source

Thermal Emission and Confirmation of the Frigid White Dwarf Exoplanet WD 1856+534 b

The Astrophysical Journal Letters
We report the detection of thermal emission from and confirm the planetary nature of WD 1856+534 b, the first transiting planet known to orbit a white dwarf (WD) star.
Mary Anne Limbach, Andrew Vanderburg, Ryan J. MacDonald, Kevin B. Stevenson, Sydney Jenkins, Simon Blouin, Emily Rauscher, Rachel Bowens-Rubin, Elena Gallo, James Mang, Caroline V. Morley, David K. Sing, Christopher O’Connor, Alexander Venner, Siyi Xu   +14 more
doaj   +1 more source

The JWST Weather Report from the Isolated Exoplanet Analog SIMP 0136+0933: Pressure-dependent Variability Driven by Multiple Mechanisms

The Astrophysical Journal Letters
Isolated planetary-mass objects share their mass range with planets but do not orbit a star. They lack the necessary mass to support fusion in their cores and thermally radiate their heat from formation as they cool, primarily at infrared wavelengths ...
Allison M. McCarthy, Johanna M. Vos, Philip S. Muirhead, Beth A. Biller, Caroline V. Morley, Jacqueline Faherty, Ben Burningham, Emily Calamari, Nicolas B. Cowan, Kelle L. Cruz, Eileen Gonzales, Mary Anne Limbach, Pengyu Liu, Evert Nasedkin, Genaro Suárez, Xianyu Tan, Cian O’Toole, Channon Visscher, Niall Whiteford, Yifan Zhou   +19 more
doaj   +1 more source

Jupiter Evolutionary Models Incorporating Stably Stratified Regions

The Astrophysical Journal
We address the issue of which broad set of initial conditions for the planet Jupiter best matches the current presence of a “fuzzy core” of heavy elements, while at the same time comporting with measured parameters such as its effective temperature ...
Roberto Tejada Arevalo, Ankan Sur, Yubo Su, Adam Burrows   +3 more
doaj   +1 more source

Formation and Evolution Simulations of Saturn, Including Composition Gradients and Helium Immiscibility

The Planetary Science Journal
In this paper, the formation of Saturn is modeled by detailed numerical simulations according to the core-nucleated accretion scenario. Previous models are enhanced to include the dissolution of accreting planetesimals, composed of water ice, rock, and ...
Peter Bodenheimer, David J. Stevenson, Jack J. Lissauer, Gennaro D’Angelo   +3 more
doaj   +1 more source

Bulk and Atmospheric Metallicities as Direct Probes of Sequentially Varying Accretion Mechanisms of Gas and Solids Onto Planets

The Astrophysical Journal Letters
Core accretion is the standard scenario of planet formation, wherein planets are formed by sequential accretion of gas and solids, and is widely used to interpret exoplanet observations.
Yasuhiro Hasegawa, Mark R. Swain
doaj   +1 more source

An Energy Perspective of Core Erosion in Gas Giant Planets

The Astrophysical Journal Letters
Juno and Cassini have shown that Jupiter and Saturn likely contain extended gradients of heavy elements. Yet, how these gradients can survive over billions of years remains an open question.
J. R. Fuentes, Christopher R. Mankovich, Ankan Sur   +2 more
doaj   +1 more source

The Evolution of Giant Planets – Towards a Better Understanding of Gas Giants in- and outside the Solar System

, 2021
openaire   +2 more sources

3D Simulations of Convective Entrainment in Gas Giants: Rotation and Decreasing Luminosity as Barriers to Mixing

The Astrophysical Journal Letters
Observations from Juno and Cassini suggest that Jupiter and Saturn may possess fuzzy cores—central regions where the abundance of heavy elements varies smoothly with depth.
Shu Zhang, J. R. Fuentes, Andrew Cumming
doaj   +1 more source