{"paper":{"title":"Constraints on cometary surface evolution derived from a statistical analysis of 67P's topography","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"A. Gicquel, B. Davidsson, C. Barbieri, C. Feller, C. G\\\"uttler, C. Tubiana, D. de Niem, D. Koschny, E. Kuehrt, 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. Vincent, J. Deller, J. J. Lopez Moreno, J. Knollenberg, J.-L. Bertaux, J.-R. Kramm, L. Jorda, L. M. Lara, L. Penasa, M. A. Barucci, M. De Cecco, M. F. A'Hearn, M. Fulle, M. Hofmann, M. K\\\"uppers, M. Lazzarin, M. Pajola, N. Oklay, N. Thomas, O. Groussin, P. Guti\\'errez-Marquez, P. J. Guti\\'errez, P. L. Lamy, R. Rodrigo, S. Boudreault, S. Debei, S.F. Hviid, S. Fornasier, S. Mottola, V. Da Deppo, W.-H. Ip, X. Hu, X. Shi, Z.-Y. Lin","submitted_at":"2017-07-03T19:19:32Z","abstract_excerpt":"We present a statistical analysis of the distribution of large scale topographic features on comet 67P/Churyumov-Gerasimenko. We observe that the cumulative cliff height distribution across the surface follows a power law with a slope equal to -1.69 +- 0.02. When this distribution is studied independently for each region, we find a good correlation between the slope of the power law and the orbital erosion rate of the surface. For instance, the northern hemisphere topography is dominated by structures on the 100~m scale while the southern hemisphere topography, illuminated at perihelion, is do"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1707.00734","kind":"arxiv","version":2},"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"}