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High-speed Boulders and the Debris Field in DART Ejecta

Authors: Tony L. Farnham, Jessica M. Sunshine, Masatoshi Hirabayashi, Carolyn M. Ernst, R. Terik Daly, Harrison F. Agrusa, Olivier S. Barnouin, Jian-Yang Li, Kathryn M. Kumamoto, Megan Bruck Syal, Sean E. Wiggins, Evan Bjonnes, Angela M. Stickle, Sabina D. Raducan, Andrew F. Cheng, David A. Glenar, Ramin Lolachi, Timothy J. Stubbs, Eugene G. Fahnstock, Marilena Amoroso, Ivano Bertini, John R. Brucato, Andrea Capannolo, Gabriele Cremonese, Massimo Dall'Ora, Vincenzo Della Corte, J. D. P. Deshapriya, Elisabetta Dotto, Igor Gai, Pedro H. Hasselmann, Simone Ieva, Gabriele Impresario, Stavro L. Ivanovski, Michèle Lavagna, Alice Lucchetti, Francesco Marzari, Elena Mazzotta Epifani, Dario Modenini, Maurizio Pajola, Pasquale Palumbo, Simone Pirrotta, Giovanni Poggiali, Alessandro Rossi, Paolo Tortora, Marco Zannoni, Giovanni Zanotti, Angelo Zinzi

Tony L. Farnham et al 2025 The Planetary Science Journal 6 .

Provider: AAS Journals

Caption: Figure 8.

Temporal sequence of images with close-ups of Dimorphos after close approach. Features noted in the text are highlighted in panel (a) (173 s), including the illuminated nightside topography and the shadow along the top limb cast by the dense ejecta at the base of the cone. This shadowed region is somewhat brighter than the nightside owing to indirect illumination from the bright ejecta higher in the cone. (Note that this indirect illumination extends beyond the terminator.) Over time, the shadow also disappears over the horizon as the spacecraft moves from −40° to −26° latitude during the sequence. The images are displayed with a logarithmic display to more clearly reveal the illuminated nightside topography.

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