uu.seUppsala University Publications
Change search
ReferencesLink to record
Permanent link

Direct link
The cratering history of asteroid (2867) Steins
Show others and affiliations
2010 (English)In: Planetary and Space Science, ISSN 0032-0633, E-ISSN 1873-5088, Vol. 58, no 9, 1116-1123 p.Article in journal (Refereed) Published
Abstract [en]

The cratering history of main belt asteroid (2867) Steins has been investigated using OSIRIS imagery acquired during the Rosetta flyby that took place on the 5th of September 2008. For this purpose, we applied current models describing the formation and evolution of main belt asteroids, that provide the rate and velocity distributions of impactors. These models coupled with appropriate crater scaling laws, allow the cratering history to be estimated. Hence, we derive Steins' cratering retention age, namely the time lapsed since its formation or global surface reset. We also investigate the influence of various factors-like bulk structure and crater erasing-on the estimated age, which spans from a few hundred Myrs to more than 1 Gyr, depending on the adopted scaling law and asteroid physical parameters. Moreover, a marked lack of craters smaller than about 0.6 km has been found and interpreted as a result of a peculiar evolution of Steins cratering record, possibly related either to the formation of the 2.1 km wide impact crater near the south pole or to YORP reshaping.

Place, publisher, year, edition, pages
2010. Vol. 58, no 9, 1116-1123 p.
Keyword [en]
Asteroid (2867) Steins, Asteroid cratering, Asteroid evolution, Main belt asteroids
National Category
Astronomy, Astrophysics and Cosmology
URN: urn:nbn:se:uu:diva-135648DOI: 10.1016/j.pss.2010.03.017ISI: 000279756300008OAI: oai:DiVA.org:uu-135648DiVA: diva2:375672
Available from: 2010-12-08 Created: 2010-12-07 Last updated: 2010-12-08Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text
By organisation
Department of Physics and Astronomy
In the same journal
Planetary and Space Science
Astronomy, Astrophysics and Cosmology

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 124 hits
ReferencesLink to record
Permanent link

Direct link