{"paper":{"title":"Diagnosing the Clumpy Protoplanetary Disk of the UXor Type Young Star GM Cephei","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"C. S. Lin, D. Wagner, E. L. N. Jensen, E. Pak\\v{s}tien\\.e, E. Semkov, H. C. Lin, H. Naito, H. Y. Hsiao, J. Budaj, J. K. T. Qvam, J. Ohlert, J. Z Liu, K. Kuramoto, M. Mugrauer, M. Schwartz, M. Watanabe, O. Burkhonov, O. Lux, P. C. Huang, R. Bischoff, R. Errmann, R. Janulis, R. Neuh\\\"auser, S. Ehgamberdiev, S. Kiyota, S. Sato, S. Takagi, St. Raetz, T. Pribulla, W. P. Chen, Y. Zhang, Z. Garai","submitted_at":"2019-02-13T09:58:58Z","abstract_excerpt":"UX Orionis stars (UXors) are Herbig Ae/Be or T Tauri stars exhibiting sporadic occultation of stellar light by circumstellar dust. GM\\,Cephei is such a UXor in the young ($\\sim4$~Myr) open cluster Trumpler\\,37, showing prominent infrared excess, emission-line spectra, and flare activity. Our photometric monitoring (2008--2018) detects (1)~an $\\sim$3.43~day period, likely arising from rotational modulation by surface starspots, (2)~sporadic brightening on time scales of days due to accretion, (3)~irregular minor flux drops due to circumstellar dust extinction, and (4)~major flux drops, each las"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.04824","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"}