Formation of sharp edges and planar areas of asteroids by polyhedral abrasion

G. Domokos, A. Á Sipos, Gy M. Szabó, P. L. Vrkonyi

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

While the number of asteroids with known shapes has drastically increased over the past few years, little is known on the time-evolution of shapes and the underlying physical processes. Here we propose an averaged abrasion model based on micro-collisions, accounting for asteroids not necessarily evolving toward regular spheroids, rather (depending on the fall-back rate of ejecta) following an alternative path, thus confirming photometry-derived features, e.g., existence of large, relatively flat areas separated by edges. We show that our model is realistic, since the bulk of the collisions falls into this category.

Original languageEnglish
JournalAstrophysical Journal
Volume699
Issue number1 PART 2
DOIs
Publication statusPublished - 2009

Fingerprint

abrasion
asteroids
asteroid
collision
collisions
spheroids
ejecta
photometry
rate
physical process

Keywords

  • Asteroids
  • Minor planets

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Space and Planetary Science
  • Astronomy and Astrophysics

Cite this

Formation of sharp edges and planar areas of asteroids by polyhedral abrasion. / Domokos, G.; Sipos, A. Á; Szabó, Gy M.; Vrkonyi, P. L.

In: Astrophysical Journal, Vol. 699, No. 1 PART 2, 2009.

Research output: Contribution to journalArticle

Domokos, G. ; Sipos, A. Á ; Szabó, Gy M. ; Vrkonyi, P. L. / Formation of sharp edges and planar areas of asteroids by polyhedral abrasion. In: Astrophysical Journal. 2009 ; Vol. 699, No. 1 PART 2.
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