{"paper":{"title":"Tensile Strength of 67P/Churyumov-Gerasimenko Nucleus Material from Overhangs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"A.-T. Auger, B. Davidsson, C. Barbieri, C. G\\\"uttler, C. Tubiana, D. Bodewits, D. Koschny, D. N\\'ebouy, E. K\\\"uhrt, F. Marzari, F. Preusker, F. Scholten, G. Cremonese, G. Kovacs, G. Naletto, H. Rickman, H. Sierks, H. U. Keller, I. Bertini, I. Toth, J.-B. Vincen, J. Deller, J. J. Lopez Moreno, J. Knollenberg, J.-L. Bertaux, J. R. Kramm, L. Jorda, L. M. Lara, M. A. Barucci, M. De Cecco, M. F. A'Hearn, M. Fulle, M. K\\\"uppers, M. Lazzarin, M. Pajola, M. R. El-Maarry, N. Attree, N. Oklay, N. Thomas, O. Groussin, P. Hartogh, P. J. Guti\\'errez, P. Lamy, R. Rodrigo, S. Boudreault, S. Debei, S. Fornasier, S. Hviid, S. Lowry, S. Marchi, S. Mottola, V. Da Deppo, W.-H Ip, X. Shi, Y. Brouet","submitted_at":"2017-12-20T14:57:28Z","abstract_excerpt":"We directly measure twenty overhanging cliffs on the surface of comet 67P/Churyumov-Gerasimenko extracted from the latest shape model and estimate the minimum tensile strengths needed to support them against collapse under the comet's gravity. We find extremely low strengths of around one Pa or less (one to five Pa, when scaled to a metre length). The presence of eroded material at the base of most overhangs, as well as the observed collapse of two features and implied previous collapse of another, suggests that they are prone to failure and that true material strengths are close to these lowe"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1712.07508","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}