Results 1 to 10 of about 171,913 (339)
Orbital migration and the frequency of giant planet formation [PDF]
Astron.Astrophys. 394 (2002) 241-252, 2002 We present a statistical study of the post-formation migration of giant planets in a range of initial disk conditions. For given initial conditions we model the evolution of giant planet orbits under the influence of disk, stellar, and mass loss torques. We determine the mass and semi-major axis distribution of surviving planets after disk dissipation,
David E. Trilling, J. I. Lunine, W. Benz
arxiv +3 more sources
Terrestrial planet formation. [PDF]
Proc Natl Acad Sci U S A, 2011 Advances in our understanding of terrestrial planet formation have come from a multidisciplinary approach. Studies of the ages and compositions of primitive meteorites with compositions similar to the Sun have helped to constrain the nature of the building blocks of planets.
Righter K, O'Brien DP.
europepmc +5 more sources
, 2021 Our galaxy is full with planets. We now know that planets and planetary systems are diverse and come with different sizes, masses and compositions, as well as various orbital architectures. Although there has been great progress in understanding planet formation in the last couple of decades, both observationally and theoretically, several fundamental ...
Helled, Ravit, Morbidelli, Alessandro
openaire +2 more sources
Impact Induced Oxidation and Its Implications for Early Mars Climate
Geophysical Research Letters, 2023 H2 in a CO2 atmosphere may serve as a potential solution to the early Mars climate paradox, but its unknown sources cast doubts on the proposed mechanism. Impact cratering is an energetic process that may modify the surface redox budget.
Lu Pan, Zhengbin Deng, Martin Bizzarro
doaj +1 more source
The planet formation imager [PDF]
Experimental Astronomy, 2018 Published in Experimental Astronomy as part of topical collection "Future of Optical-infrared Interferometry in Europe"
Monnier, John D. +38 more
openaire +9 more sources
The Astrophysical Journal Letters, 2023 We present a U-corrected Pb–Pb age of 4566.19 ± 0.20 Ma (1.11 ± 0.26 Myr after t _0 ) for the moderately volatile element rich, andesitic meteorite Erg Chech 002 (EC002). Our Al–Mg isochron defines a ^26 Al/ ^27 Al initial ratio of (8.65 ± 0.09) × 10 ^−6
J. N. Connelly +5 more
doaj +1 more source
The Astrophysical Journal, 2023 In protostellar cores, sulfur species are effective probes for the energetic environments, such as shocked regions. With the majority of sulfur depleted on dust grains, sulfur-bearing molecules could be liberated back to gas phase by shocks associated ...
Ziwei E. Zhang +7 more
doaj +1 more source
Interior and Evolution of the Giant Planets
Remote Sensing, 2023 The giant planets were the first to form and hold the key to unveiling the solar system’s formation history in their interiors and atmospheres.
Yamila Miguel, Allona Vazan
doaj +1 more source
The distribution of volatile elements during rocky planet formation
Frontiers in Earth Science, 2023 Core segregation and atmosphere formation are two of the major processes that redistribute the volatile elements—hydrogen (H), carbon (C), nitrogen (N), and sulfur (S)—in and around rocky planets during their formation.
Terry-Ann Suer +5 more
doaj +1 more source
An Analytical Theory for the Growth from Planetesimals to Planets by Polydisperse Pebble Accretion
The Astrophysical Journal, 2023 Pebble accretion is recognized as a significant accelerator of planet formation. Yet only formulae for single-sized (monodisperse) distribution have been derived in the literature.
Wladimir Lyra +3 more
doaj +1 more source