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The role of regolith redistribution in influencing the evolution of the shapes of asteroids
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| Zeitschriftentitel: | Meteoritics & Planetary Science |
|---|---|
| Personen und Körperschaften: | , |
| In: | Meteoritics & Planetary Science, 36, 2001, 6, S. 817-829 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
Wiley
|
| Schlagwörter: |
| author_facet |
Wilson, Lionel Keil, Klaus Wilson, Lionel Keil, Klaus |
|---|---|
| author |
Wilson, Lionel Keil, Klaus |
| spellingShingle |
Wilson, Lionel Keil, Klaus Meteoritics & Planetary Science The role of regolith redistribution in influencing the evolution of the shapes of asteroids Space and Planetary Science Geophysics |
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wilson, lionel |
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Wilson, Lionel Keil, Klaus 1086-9379 1945-5100 Wiley Space and Planetary Science Geophysics http://dx.doi.org/10.1111/j.1945-5100.2001.tb01919.x <jats:p><jats:bold>Abstract—</jats:bold> ‐Major surface fissures and relatively large‐scale, angular surface irregularities are expected to have been present on many asteroids at early stages in their histories as a byproduct of at least two processes (impact disruption and reassembly into rubble piles for all classes of asteroid and, for carbonaceous chondrite parent bodies, aqueous alteration) which led to the low bulk densities currently being observed for asteroids. However, in all cases where high‐enough resolution images exist, such abrupt, deep irregularities are not observed. We model the spatial redistribution of impact‐generated regolith on an asteroid with an idealized irregular shape to show how the complex gravitational field of such a body will lead to the systematic infilling of deep valleys in the surface. Our analysis emphasizes the high efficiency with which regolith redistribution can act to disguise the internal structures of asteroids with sizes in the 20–100 km range.</jats:p> The role of regolith redistribution in influencing the evolution of the shapes of asteroids Meteoritics & Planetary Science |
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The role of regolith redistribution in influencing the evolution of the shapes of asteroids |
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The role of regolith redistribution in influencing the evolution of the shapes of asteroids |
| title_full |
The role of regolith redistribution in influencing the evolution of the shapes of asteroids |
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The role of regolith redistribution in influencing the evolution of the shapes of asteroids |
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The role of regolith redistribution in influencing the evolution of the shapes of asteroids |
| title_short |
The role of regolith redistribution in influencing the evolution of the shapes of asteroids |
| title_sort |
the role of regolith redistribution in influencing the evolution of the shapes of asteroids |
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Space and Planetary Science Geophysics |
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http://dx.doi.org/10.1111/j.1945-5100.2001.tb01919.x |
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2001 |
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817-829 |
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<jats:p><jats:bold>Abstract—</jats:bold> ‐Major surface fissures and relatively large‐scale, angular surface irregularities are expected to have been present on many asteroids at early stages in their histories as a byproduct of at least two processes (impact disruption and reassembly into rubble piles for all classes of asteroid and, for carbonaceous chondrite parent bodies, aqueous alteration) which led to the low bulk densities currently being observed for asteroids. However, in all cases where high‐enough resolution images exist, such abrupt, deep irregularities are not observed. We model the spatial redistribution of impact‐generated regolith on an asteroid with an idealized irregular shape to show how the complex gravitational field of such a body will lead to the systematic infilling of deep valleys in the surface. Our analysis emphasizes the high efficiency with which regolith redistribution can act to disguise the internal structures of asteroids with sizes in the 20–100 km range.</jats:p> |
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| description | <jats:p><jats:bold>Abstract—</jats:bold> ‐Major surface fissures and relatively large‐scale, angular surface irregularities are expected to have been present on many asteroids at early stages in their histories as a byproduct of at least two processes (impact disruption and reassembly into rubble piles for all classes of asteroid and, for carbonaceous chondrite parent bodies, aqueous alteration) which led to the low bulk densities currently being observed for asteroids. However, in all cases where high‐enough resolution images exist, such abrupt, deep irregularities are not observed. We model the spatial redistribution of impact‐generated regolith on an asteroid with an idealized irregular shape to show how the complex gravitational field of such a body will lead to the systematic infilling of deep valleys in the surface. Our analysis emphasizes the high efficiency with which regolith redistribution can act to disguise the internal structures of asteroids with sizes in the 20–100 km range.</jats:p> |
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| spelling | Wilson, Lionel Keil, Klaus 1086-9379 1945-5100 Wiley Space and Planetary Science Geophysics http://dx.doi.org/10.1111/j.1945-5100.2001.tb01919.x <jats:p><jats:bold>Abstract—</jats:bold> ‐Major surface fissures and relatively large‐scale, angular surface irregularities are expected to have been present on many asteroids at early stages in their histories as a byproduct of at least two processes (impact disruption and reassembly into rubble piles for all classes of asteroid and, for carbonaceous chondrite parent bodies, aqueous alteration) which led to the low bulk densities currently being observed for asteroids. However, in all cases where high‐enough resolution images exist, such abrupt, deep irregularities are not observed. We model the spatial redistribution of impact‐generated regolith on an asteroid with an idealized irregular shape to show how the complex gravitational field of such a body will lead to the systematic infilling of deep valleys in the surface. Our analysis emphasizes the high efficiency with which regolith redistribution can act to disguise the internal structures of asteroids with sizes in the 20–100 km range.</jats:p> The role of regolith redistribution in influencing the evolution of the shapes of asteroids Meteoritics & Planetary Science |
| spellingShingle | Wilson, Lionel, Keil, Klaus, Meteoritics & Planetary Science, The role of regolith redistribution in influencing the evolution of the shapes of asteroids, Space and Planetary Science, Geophysics |
| title | The role of regolith redistribution in influencing the evolution of the shapes of asteroids |
| title_full | The role of regolith redistribution in influencing the evolution of the shapes of asteroids |
| title_fullStr | The role of regolith redistribution in influencing the evolution of the shapes of asteroids |
| title_full_unstemmed | The role of regolith redistribution in influencing the evolution of the shapes of asteroids |
| title_short | The role of regolith redistribution in influencing the evolution of the shapes of asteroids |
| title_sort | the role of regolith redistribution in influencing the evolution of the shapes of asteroids |
| title_unstemmed | The role of regolith redistribution in influencing the evolution of the shapes of asteroids |
| topic | Space and Planetary Science, Geophysics |
| url | http://dx.doi.org/10.1111/j.1945-5100.2001.tb01919.x |