| Title |
A record of planet migration in the main asteroid belt
|
|---|---|
| Published in |
Nature, February 2009
|
| DOI | 10.1038/nature07778 |
| Pubmed ID | |
| Authors |
David A. Minton, Renu Malhotra |
| Abstract |
The main asteroid belt lies between the orbits of Mars and Jupiter, but the region is not uniformly filled with asteroids. There are gaps, known as the Kirkwood gaps, in distinct locations that are associated with orbital resonances with the giant planets; asteroids placed in these locations will follow chaotic orbits and be removed. Here we show that the observed distribution of main belt asteroids does not fill uniformly even those regions that are dynamically stable over the age of the Solar System. We find a pattern of excess depletion of asteroids, particularly just outward of the Kirkwood gaps associated with the 5:2, the 7:3 and the 2:1 Jovian resonances. These features are not accounted for by planetary perturbations in the current structure of the Solar System, but are consistent with dynamical ejection of asteroids by the sweeping of gravitational resonances during the migration of Jupiter and Saturn approximately 4 Gyr ago. |
X Demographics
The data shown below were collected from the profile of 1 X user who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 1 | 100% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 1 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 69 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 1 | 1% |
| Uruguay | 1 | 1% |
| Canada | 1 | 1% |
| Unknown | 66 | 96% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Researcher | 26 | 38% |
| Student > Ph. D. Student | 12 | 17% |
| Professor | 9 | 13% |
| Student > Master | 6 | 9% |
| Professor > Associate Professor | 4 | 6% |
| Other | 7 | 10% |
| Unknown | 5 | 7% |
| Readers by discipline | Count | As % |
|---|---|---|
| Physics and Astronomy | 31 | 45% |
| Earth and Planetary Sciences | 20 | 29% |
| Agricultural and Biological Sciences | 4 | 6% |
| Chemistry | 3 | 4% |
| Social Sciences | 1 | 1% |
| Other | 1 | 1% |
| Unknown | 9 | 13% |
Attention Score in Context
This research output has an Altmetric Attention Score of 4. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 22 March 2024.
All research outputs
#6,616,983
of 23,393,453 outputs
Outputs from Nature
#63,483
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Outputs of similar age
#42,856
of 173,064 outputs
Outputs of similar age from Nature
#358
of 508 outputs
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