{"paper":{"title":"The GRAVITY young stellar object survey XIII. Tracing the time-variable asymmetric disk structure in the inner AU of the Herbig star HD98922","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.EP"],"primary_cat":"astro-ph.SR","authors_text":"A. Amorim, A. Caratti o Garatti, A. Drescher, A. Eckart, A. Soulain, A. Wojtczak, C. Dougados, C. Straubmeier, D. Lutz, D. Ribeiro, E. Alecian, E. Gendron, E. Sturm, E. van Dishoeck, F. Eisenhauer, F. Mang, F. Vincent, G. Bourdarot, G. Hei{\\ss}el, G. Perrin, GRAVITY Collaboration: V. Ganci, H. Feuchtgruber, J.-B. Le Bouquin, J. Kaufhold, J.-P. Berger, J. Sanchez-Bermudez, J. Shangguan, J. Woillez, K. Perraut, L. Jocou, L. Labadie, L. Tacconi, M. Benisty, M. Fabricius, M. Horrobin, M. Sadun Bordoni, N. Moruj\\~ao, P. Caselli, P. Garcia, P. Kervella, P. L\\'ena, R. Garcia Lopez, R. Genzel, S. Gillessen, S. Grant, S. Lacour, S. Scheithauer, T. Henning, T. Ott, T. Paumard, T. Shimizu, V. Lapeyr\\`ere, W. Brandner, Y. Cl\\'enet","submitted_at":"2024-01-31T11:43:24Z","abstract_excerpt":"Temporal variability in the photometric and spectroscopic properties of protoplanetary disks is common in YSO. However, evidence pointing toward changes in their morphology over short timescales has only been found for a few sources, mainly due to a lack of high cadence observations at mas resolution. We combine GRAVITY multi-epoch observations of HD98922 at mas resolution with PIONIER archival data covering a total time span of 11 years. We interpret the interferometric visibilities and spectral energy distribution with geometrical models and through radiative transfer techniques. We investig"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2401.17764","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/2401.17764/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"}