Results 21 to 30 of about 306,106 (208)

Dead Zones as Thermal Barriers to Rapid Planetary Migration in Protoplanetary Disks

, 2010
Planetary migration in standard models of gaseous protoplanetary disks is known to be very rapid ($\sim 10^5$ years) jeopardizing the existence of planetary systems.
Baruteau, Chiang, D'Alessio, D'Angelo, Dullemond, Jang-Condell, Johnson, Kretke, Laughlin, Masset, Matsumura, Menou, Oishi, Schlaufman, Scholz, Shakura, Tanaka, Udry, Ward   +18 more
core   +1 more source

Quantitative Sensitivity Assessment of Martian Geodetic Parameters to Interior Model: Implications for Joint Inversion

The Astrophysical Journal
Geodetic parameters are widely used in joint inversion to infer the interior structure of planets. However, joint inversion often involves complex parameterizations that may be computationally costly.
Runze Fu, Jianguo Yan, Chi Xiao, Zhicheng Jing, Feng Liang, Denggao Qiu, Yuji Harada, Jean-Pierre Barriot   +7 more
doaj   +1 more source

A structural law of planetary systems [PDF]

Monthly Notices of the Royal Astronomical Society, 2008
The present article gives a detailed analysis of a little known phenomenological structural formula of the Solar system proposed by Kirill Butusov. It is demonstrated that this structural law may also exist in an extra-solar system – 55 Cancri.
openaire   +1 more source

Capillary radiator Patent [PDF]

, 1970
Capillary radiator for carrying heat transfer liquid in planetary spacecraft ...
Vary, A.
core   +1 more source

Planetary Evaporation and the Dynamics of Planet Wind/Stellar Wind Bow Shocks

, 2015
We present initial results of a new campaign of simulations focusing on the interaction of planetary winds with stellar environments using Adaptive Mesh Refinement methods.
Blackman, E. G., Carroll-Nellenback, J., Dobbs-Dixon, I., Frank, A., Kasting, J. F., Liu, B., Quillen, A. C.   +6 more
core   +1 more source

From Tides to Currents: Unraveling the Mechanism that Powers WASP-107b’s Internal Heat Flux

The Astrophysical Journal
The sub-Jovian exoplanet WASP-107b ranks among the best-characterized low-density worlds, featuring a Jupiter-like radius and a mass that lies firmly in the sub-Saturn range.
Konstantin Batygin
doaj   +1 more source

A Herschel study of Planetary Nebulae

, 2011
We present Herschel PACS and SPIRE images of the dust shells around the planetary nebulae NGC 650, NGC 6853, and NGC 6720, as well as images showing the dust temperature in their shells.
Griet C. Van de Steene, Griffin, Groenewegen, Katrina M. Exter, Michael J. Barlow, Mikako Matsuura, Ott, Peter A. M. van Hoof, Pilbratt, Poglitsch, Tanya L. Lim, Toshiya Ueta, van Hoof   +12 more
core   +1 more source

Most High-density Exoplanets Are Unlikely to Be Remnant Giant Planet's Cores

The Astrophysical Journal Letters
Some exoplanets have much higher densities than expected from stellar abundances of planet-forming elements. There are two theories—metal-rich formation hypothesis and naked core hypothesis—that explain how formation and evolution can alter the ...
Zifan Lin, Saverio Cambioni, Sara Seager
doaj   +1 more source

轮边减速器行星齿轮结构动力学分析

Jixie chuandong, 2011
Using 3D modeling software,geometric model of the wheel planetary gear reducer structure is established,based on heavy-duty truck wheel reducer planetary gear structure and the loading characteristics,a planetary gear structure of three-dimensional ...
王铁, 柴少彪
doaj  

APPLE: An Evolution Code for Modeling Giant Planets

The Astrophysical Journal
We introduce APPLE , a novel planetary evolution code designed specifically for the study of giant exoplanet and Jovian planet evolution in the era of Galileo, Juno, and Cassini. With APPLE , state-of-the-art equations of state for hydrogen, helium, ice,
Ankan Sur, Yubo Su, Roberto Tejada Arevalo, Yi-Xian Chen, Adam Burrows   +4 more
doaj   +1 more source