¹Evgeniya V. Petrova,¹Victor I. Grokhovsky,²Anna Kartashova
Icarus (inPress) Link to Article [https://doi.org/10.1016/j.icarus.2026.117147]
¹Ural Federal University, Mira Str., 19/5, 620002 Ekaterinburg, Russia
²Institute of Astronomy RAS, Pyatnitskaya Str., 48, 119017 Moscow, Russia
Copyright Elsevier

Fragmentation, ablation and significant loss of mass occur when the meteoroid passes through the Earth’s atmosphere. There a combined action of melting and shearing takes place, so a fusion crust is forming on the surface of the fragments. It combined a subsurface layer of heated matter and an outer layer consisting of remaining melted meteoroid substance.
In this publication we focused on the process of ablation from different points of view: i – registered spectra of fireballs; ii – fusion crust composition study; iii – ablation modeling ground experiments.