Macroporosity and Grain Density of Rubble Pile Asteroid (162173) Ryugu

• Published in: Journal of Geophysical Research: Planets
• Main Authors: Grott, Matthias, Biele, Jens, Michel, Patrick, Sugita, Seiji, Schröder, Stefan, Sakatani, Naoya, Neumann, Wladimir, Kameda, Shingo, Michikami, Tatsuhiro, Honda, Chikatoshi, 2 German Aerospace Center Cologne Germany, 3 Laboratoire Lagrange Université Côte d'Azur Observatoire de la Côte d'Azur CNRS Nice France, 4 University of Tokyo Tokyo Japan, 1 German Aerospace Center Berlin Germany, 5 ISAS/JAXA Sagamihara Japan, 7 Rikkyo University Tokyo Japan, 8 Kindai University Hiroshima Japan, 9 University of Aizu Aizu‐Wakamatsu Japan
• Format: Article in Journal/Newspaper
• Language: English
• Published: 2020
• Subjects: ddc:523; Asteroids; Ryugu; Porosity; Density; Tagish; Tagish Lake
• Online Access: https://doi.org/10.1029/2020JE006519; http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/8427

Rubble pile asteroids such as (162173) Ryugu have large bulk porosities, which are believed to result from void spaces in between the constituent boulders (macroporosity) as well as void spaces within the boulders themselves (microporosity). In general, both macroporosity and microporosity are estim...