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Oort cloud

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The solar system in three views.  Top:  The <b>Oort</b> <b>Cloud</b> of comets encloses t...
in > Elements
Published: 01 January 2005
FIGURE 1 The solar system in three views. Top: The Oort Cloud of comets encloses the solar system, to a distance of 100,000 AU; scale is logarithmic. Figure from NASA Space Science Institute. Middle: The Kuiper Belt ties the Oort Cloud (to the right) to the inner solar system (to the left
Series: GSA Special Papers
Published: 01 January 1990
DOI: 10.1130/SPE247-p171
... The spacecraft flybys of Comet Halley in 1986, along with other new techniques for observing long- and short-period comets, have greatly increased our knowledge of cometary nuclei. In addition, new dynamical studies have expanded our understanding of the Oort cometary cloud and suggested...
Series: GSA Special Papers
Published: 01 January 1982
DOI: 10.1130/SPE190-p15
... (Shoemaker and others, 1979) is about twice the observed rate. Monte Carlo simulations of the dynamical evolution of the Oort cloud give estimates of the cometary flux rate in the early solar system on the order of 200 times the current flux. ...
Book Chapter

Author(s)
C. Vita-Finzi
Series: Geological Society, London, Special Publications
Published: 01 January 2008
DOI: 10.1144/SP296.7
EISBN: 9781862395442
... depressions. Atmospheric Δ 14 C values show a gradual decline from c . 7000 bp followed by a temporary resurgence after AD 500 which includes peaks corresponding to the Oort, Wolf, Spörer, Maunder, Dalton and other solar minima. Reduced irradiance could account for channel aggradation by favouring cyclonic...
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Image
Cartoon showing the relative positions and scale of the inner solar system,...
in > Elements
Published: 01 April 2018
Figure 3 Cartoon showing the relative positions and scale of the inner solar system, the Kuiper Belt, and the Oort Cloud. From Jedimaster Wikipedia Commons.
Journal Article
Published: 01 January 2008
Reviews in Mineralogy and Geochemistry (2008) 68 (1): 55-72.
...Adam G. Jensen; F. Markwick-Kemper; Theodore P. Snow Abstract The oxygen that is observed in the Solar System today is a remnant of the interstellar oxygen that was in the dense molecular cloud that collapsed to form the Solar System. While the chemical evolution of the Galaxy has progressed since...
Image
Orbits of some celestial bodies. ( A ) The orbit of the long-period comet H...
in > Elements
Published: 01 February 2011
F igure 2 Orbits of some celestial bodies. ( A ) The orbit of the long-period comet Hyakutake, which extends to the Oort cloud. ( B ) Orbits of the Wild 2 Jupiter family comet (blue) and the Tagish Lake meteorite (green), as well as the preferred orbit for the Orgueil meteorite (adopting
Journal Article
Journal: Elements
Published: 01 April 2018
Elements (2018) 14 (2): 83-86.
...Figure 3 Cartoon showing the relative positions and scale of the inner solar system, the Kuiper Belt, and the Oort Cloud. From Jedimaster Wikipedia Commons. ...
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Journal Article
Journal: Elements
Published: 01 April 2018
Elements (2018) 14 (2): 107-112.
...). Long-period comets mostly originate in the Oort Cloud of comets. The Oort Cloud surrounds our solar system and stretches out to about half the distance to our nearest star. The origin of the Oort Cloud is thought to be a natural consequence of planet formation. After a rapid initial formation...
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Journal Article
Published: 01 July 2003
Geological Magazine (2003) 140 (4): 494.
...Alex Bevan © 2003 Cambridge University Press 2003 Over time, a large amount of natural debris has been released into the Solar System. Mechanisms for this include disturbances in the Oort Cloud and Kuiper Belt, the influence of Jupiter’s gravity, collisions between asteroids, meteoroid...
Journal Article
Journal: Elements
Published: 01 January 2005
Elements (2005) 1 (1): 39-43.
...FIGURE 1 The solar system in three views. Top: The Oort Cloud of comets encloses the solar system, to a distance of 100,000 AU; scale is logarithmic. Figure from NASA Space Science Institute. Middle: The Kuiper Belt ties the Oort Cloud (to the right) to the inner solar system (to the left...
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Journal Article
Journal: Elements
Published: 01 February 2011
Elements (2011) 7 (1): 29-34.
...F igure 2 Orbits of some celestial bodies. ( A ) The orbit of the long-period comet Hyakutake, which extends to the Oort cloud. ( B ) Orbits of the Wild 2 Jupiter family comet (blue) and the Tagish Lake meteorite (green), as well as the preferred orbit for the Orgueil meteorite (adopting...
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Journal Article
Published: 01 January 2008
Reviews in Mineralogy and Geochemistry (2008) 68 (1): 247-272.
... ( i < 30°) of plutons and other small Solar System bodies beyond the orbit of Neptune (30–50 AU); and the Oort cloud—a spherically distributed population of bodies residing very far from the Sun (10 3 –10 5 AU). Whereas Kuiper Belt objects (KBOs) are thought to have formed in place ( Luu...
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Journal Article
Journal: Elements
Published: 01 June 2016
Elements (2016) 12 (3): 197-202.
... the Solar System, in the Kuiper belt or the Oort cloud body, i.e. in cometary material. We also claim for the territory of small particles the presolar grains found in certain kinds of meteorites. First separated from carbonaceous meteorites, these grains were identified as presolar by criteria...
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Journal Article
Journal: Elements
Published: 01 February 2012
Elements (2012) 8 (1): 19-24.
...) material. Comets originate in the Kuiper-Edgeworth Belt and the Oort Cloud, both far outside the Solar System. Impact breccia a type of impactite formed entirely of fragments of rock, minerals, or melt Impact crater/structure the geological structure resulting from the impact...
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Journal Article
Journal: Elements
Published: 01 February 2012
Elements (2012) 8 (1): 49-53.
... of impact events on biotic evolution will first require pinpointing with great accuracy and precision the age of a large range of impact structures. A significant disturbance in the Oort cloud or the asteroid belt might result in comet or asteroid showers lasting up to a few million years. Breakup...
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Series: Geological Society, London, Special Publications
Published: 01 January 2002
DOI: 10.1144/GSL.SP.2002.199.01.11
EISBN: 9781862394476
... (<10%) unless one calls on hypothetical comets. It is noteworthy that all the three comets so far measured originate in the Oort cloud, and the scientific community is in need of the determination of the D/H ratio in Kuiper belt objects to ascertain the idea that comets did not significantly...
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Series: GSA Special Papers
Published: 03 October 2017
DOI: 10.1130/2017.2523(03)
EISBN: 9780813795232
..., but is not restricted to that time interval. The term Hadean was first proposed by Cloud (1972) and subsequently used informally by many workers to describe a period of Earth’s history prior to the fossil record and prior to the then-earliest part of the rock record (ca. 3.8 Ga) preserved in southern West Greenland...
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Journal Article
Journal: Geosphere
Published: 01 May 2006
Geosphere (2006) 2 (3): 113-124.
...)029<0023:HERITH>2.0.CO;2. García-Sánchez , J. , Preston , R.A. , Jones , D.L. , Weissman , P.R. , Lestrade , J.F. , Latham , D.W. , and Stefanik , R.P. , 1999 , Stellar encounters with the Oort cloud based on HIPPARCOS data: Astronomical Journal , v. 117...
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Journal Article
Published: 01 January 2005
Reviews in Mineralogy and Geochemistry (2005) 59 (1): 187-210.
... formed they orbited the Sun in the vicinity of the giant planets, Jupiter, Saturn and Uranus. The strong gravitational forces of these planets accelerated many of these comets out of the Solar System to the Oort cloud. This process probably resulted in the passage of comets near the inner solar system...
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