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On the Formation of the Solar System
Nature, 1971THE object of this article is to point out the significance of some properties of Jupiter (the most massive planet in the solar system) for the problem of the origin of the solar system. The mass of Jupiter is 0.001 solar masses, and its orbital eccentricity is 0.05.
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New isotopic clues to solar system formation
Reviews of Geophysics, 1979The presence of two new extinct nuclides 26Al and 107Pd with half‐lives ∼106 years in the early solar system implies that there were nucleosynthetic activities involving a great many elements almost at the instant of solar system formation. Rare gas and oxygen isotopic abundance variations [“anomalies”] relative to the “cosmic” composition were ...
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Science, 2020
Cosmochemistry The oldest solids that formed in the Solar System are calcium-aluminium–rich inclusions (CAIs), small metallic droplets that were later incorporated into meteorites. The ages of CAIs are conventionally taken as the age of the Solar System, but which exact moment in star formation they correspond to has been unclear.
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Cosmochemistry The oldest solids that formed in the Solar System are calcium-aluminium–rich inclusions (CAIs), small metallic droplets that were later incorporated into meteorites. The ages of CAIs are conventionally taken as the age of the Solar System, but which exact moment in star formation they correspond to has been unclear.
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Astrophysics and Space Science, 1986
Prentice (1978a, b), in his modern Laplacian theory of the origin of the solar system, has established a scenario in which he finds the ratio of the orbital radii of successively disposed gaseous rings to be a constant ⋍ 1.69. In an attempt to understand this law in an alternative way, Rawal (1984a) assumes that during the collapse of the solar nebula ...
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Prentice (1978a, b), in his modern Laplacian theory of the origin of the solar system, has established a scenario in which he finds the ratio of the orbital radii of successively disposed gaseous rings to be a constant ⋍ 1.69. In an attempt to understand this law in an alternative way, Rawal (1984a) assumes that during the collapse of the solar nebula ...
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Publications of the Astronomical Society of Australia, 1979
At previous meetings of the A.S.A., brief reports have been made of a new theory for the formation of the solar system which is being developed at Monash University (Prentice 1972, 1977, 1978a, b; Hourigan 1977). This work is nearing completion and on this occasion an outline of the whole theory is presented.
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At previous meetings of the A.S.A., brief reports have been made of a new theory for the formation of the solar system which is being developed at Monash University (Prentice 1972, 1977, 1978a, b; Hourigan 1977). This work is nearing completion and on this occasion an outline of the whole theory is presented.
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International Astronomical Union Colloquium, 1984
Kant-Laplace hypothesis of a common origin of the sun and the planets from a single nebula was rejected by astronomers on the verge of our century. Its main idea was renewed only six decades later. First models by Hoyle, Schatzman, Cameron were too simplified because there was no theory of star formation, and could not explain main features of the ...
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Kant-Laplace hypothesis of a common origin of the sun and the planets from a single nebula was rejected by astronomers on the verge of our century. Its main idea was renewed only six decades later. First models by Hoyle, Schatzman, Cameron were too simplified because there was no theory of star formation, and could not explain main features of the ...
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The Formation of the Solar System
Journal of the Geological Society, 2007The study of the origin and evolution of the Solar System is based on laboratory analysis of meteorites and other extraterrestrial materials, and on astronomical observations of star-forming regions today. A virtual consensus holds that the Solar System formed from the collapse of interstellar cloud material under its own gravity about 4.56 Ga ago ...
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Two-part formation of the Solar System
Science, 2021Cosmochemistry Measurements of meteorites have shown that the inner and outer Solar System formed from two distinct reservoirs of material. Existing models have proposed that these were split by Jupiter forming first, which would open a gap in the protoplanetary disc. Lichtenberg et al.
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The Formation of the Solar System
2014The Sun and the solar system formed together around 4.6 billion years ago, when the Universe was around 8 billion years old. At the beginning of this process, the starting material was a large interstellar gas cloud, which suddenly collapsed inwards under the pull of its own gravitational self-attraction until it was a fraction of its original size ...
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Homemade spinner demonstrates formation of solar system
The Physics Teacher, 2000I use a simple device to demonstrate how a sphere can become oblate when it spins. Students get to see how a cloud of gas and dust can form a relatively “flat” solar system.
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