Airless Bodies of the Inner Solar System by Grier Jennifer A. Rivkin Andrew S. & Andrew S. Rivkin

Author:Grier, Jennifer A.,Rivkin, Andrew S. & Andrew S. Rivkin [Grier, Jennifer A. & Rivkin, Andrew S.]
Language: eng
Format: epub
ISBN: 9780128092828
Publisher: Elsevier Ltd.
Published: 2018-10-15T00:00:00+00:00

where τ0 is estimated as 1.7–7.2 My, a0 is 1 AU, a is the orbit semimajor axis in AU, and e is the orbit eccentricity (see discussion of those terms in Chapter 9 if needed). At 1 AU, then, the timescale is ~ 2–7 My, while an orbit in the Flora asteroid family (a ~ 2.25 AU, e ~ 0.14) would give a timescale of ~ 8–36 My. The e-folding time for space-weathering completion uses the same form, but τ0 is 4.0–16.5. The values for τ0 are not precise to 0.1 My, as can be seen by their spread, but are included here to that precision to allow recalculation of literature values.

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