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Meteorites from Phobos and Deimos at Earth?

2017/05/05 by Paul Wiegert, P. Wiegert, Mattia Galiazzo +1 · 24 citations
Physics and Astronomy · #Achondrite #Asteroid #Astro and Planetary Science #Astrobiology #Astronomy #Chondrite #Earth (classical element) #Geology #Mars Exploration Program #Martian #Meteorite #Physics #Planet #Planetary Science and Exploration #Stellar, planetary, and galactic studies #astro-ph.EP

paper · pdf · doi:10.1016/j.pss.2017.05.001

published in Planetary and Space Science 142, 48-52 (Elsevier BV) · 11 pages, 2 figures, accepted by Planetary and Space Science

arxiv created 2017/05/05 · openalex publication_date 2017/05/06 · arxiv updated 2017/06/28 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We examine the conditions under which material from the martian moons Phobos and Deimos could reach our planet in the form of meteorites. We find that the necessary ejection speeds from these moons (900 and 600 m/s for Phobos and Deimos respectively) are much smaller than from Mars' surface (5000 m/s). These speeds are below typical impact speeds for asteroids and comets (10-40 km/s) at Mars' orbit, and we conclude that the delivery of meteorites from Phobos and Deimos to the Earth can occur.

Citations