Results 281 to 290 of about 318,680 (321)
CO self shielding, H2O formation, and the time evolution of Δ17O in a dynamic early solar system
Geochimica et Cosmochimica Acta, 2006 Edward Young
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The Origin of the Solar System
The Chemical Evolution of the Atmosphere and Oceans, 2011This article relates two topics of central importance in modern astronomy - the discovery some fifteen years ago of the first planets around other stars (exoplanets), and the centuries-old problem of understanding the origin of our own solar system, with
M. Perryman
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Icarus, 1998
Abstract Water is important in the solar nebula both because it is extremely abundant and because it condenses out at 5 AU, allowing all three phases of H 2 O to play a role in the composition and evolution of the Solar System. In this paper, we undertake a thorough examination of and model the inward radial drift of ice particles from 5 AU.
Kimberly E. Cyr +2 more
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Abstract Water is important in the solar nebula both because it is extremely abundant and because it condenses out at 5 AU, allowing all three phases of H 2 O to play a role in the composition and evolution of the Solar System. In this paper, we undertake a thorough examination of and model the inward radial drift of ice particles from 5 AU.
Kimberly E. Cyr +2 more
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On the thickness and evolution of the dust layer during the formation of the solar system
Chinese Astronomy and Astrophysics, 1984Abstract We discuss certain dynamical processes during the final stage of the sinking of the dust layer. We supposed that turbulance gave rise to a state of slow sinking (quasi-equilibrium) and evaluated the critical thickness at the onset of gravitational instability in the radial direction.
Yue Zeng-yuan, Zhang Bin
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Chemical evolution in high-mass star-forming regions
Frontiers in Astronomy and Space SciencesGrowing evidence shows that most stars in the Milky Way, including our Sun, are born in high-mass star-forming regions, but due to both observational and theoretical challenges, our understanding of their chemical evolution is much less clear than that ...
F. Fontani +15 more
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The cosmic journey of dust grains – from nucleation to planetary system
Monthly notices of the Royal Astronomical SocietyDust is essential to the evolution of galaxies and drives the formation of planetary systems. The challenge of inferring the origin of different presolar dust grains from meteoritic samples motivates forward modelling to understand the contributions of
Kira Lund, Anders Johansen, O. Agertz
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Moscow University Physics Bulletin, 2014
In the present paper, the early evolution of the Solar System with regard to the process of the formation and mass growth of small bodies in protoplanetary rings is considered. This process is modeled with the use of the results that were obtained in the analysis of the libration motions of asteroids.
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In the present paper, the early evolution of the Solar System with regard to the process of the formation and mass growth of small bodies in protoplanetary rings is considered. This process is modeled with the use of the results that were obtained in the analysis of the libration motions of asteroids.
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Evidence for Planet-Planet Scattering in Upsilon Andromedae
, 2005Doppler spectroscopy has detected 136 planets around nearby stars 1 . A major puz-zle is why their orbits are highly eccentric, while all planets in our Solar System are on nearly circular orbits, as expected if they formed by accretion processes in a ...
E. Ford +3 more
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The evolution of rotation in the early history of the Solar System
Philosophical transactions of the Royal Society of London. Series A: Mathematical and physical sciences, 1984M. Woolfson
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The early chronology of the Moon: evidence for the early collisional history of the solar system
Philosophical transactions of the Royal Society of London. Series A: Mathematical and physical sciences, 1977G. Turner
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