{"paper":{"title":"NGC922 - A new drop-through ring galaxy","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"B. Koribalski, C. Hoopes, D. J. Hanish, D. Thilker, E. V. Ryan-Weber, G. R. Meurer, H. C. Ferguson, J. Bland-Hawthorn, J. S. Heiner, J. Werk, K. Bekki, K. C. Freeman, L. Staveley-Smith, M. A. Dopita, M. A. Zwaan, M. E. Putman, M. J. Drinkwater, M. J. Meyer, M. Seibert, M. S. Oey, M. T. Doyle, O. I. Wong, P. M. Knezek, R. C. Kennicutt, R. C. Smith, R. J. Allen, R. L. Webster, T. M. Heckman, V. A. Kilborn","submitted_at":"2006-05-24T06:24:05Z","abstract_excerpt":"We have found the peculiar galaxy NGC922 to be a new drop-through ring galaxy using multi-wavelength (UV-radio) imaging and spectroscopic observations. Its `C'-shaped morphology and tidal plume indicate a recent strong interaction with its companion which was identified with these observations. Using numerical simulations we demonstrate that the main properties of the system can be generated by a high-speed off-axis drop-through collision of a small galaxy with a larger disk system, thus making NGC922 one of the nearest known collisional ring galaxies. While these systems are rare in the local"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0605613","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/astro-ph/0605613/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"}