{"paper":{"title":"A Possible Detection of Occultation by a Proto-planetary Clump in GM Cephei","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP"],"primary_cat":"astro-ph.SR","authors_text":"A. Berndt, A. K. Pandey, C. Brice\\~no, C. Gr\\\"afe, Ch. Adam, Ch. Ginski, C. Marka, C. S. Lin, D. P. Dimitrov, E. H. Nikogossian, E. L. N. Jensen, E. Schmidt, F. M. Walter, G. Maciejewski, H. C. Lin, H. Takahashi, H. Y. Hsiao, J. K. Guo, J. Schmidt, J. Sperauskas, L. Bukowiecki, L. Marschall, L. Trepl, M. Kitze, M. M. Hohle, M. Moualla, M. Mugrauer, M. Seeliger, R. Chini, R. Errmann, R. Janulis, R. Neuh\\\"auser, S. Baar, S. C.-L. Hu, S. Fiedler, St. Raetz, T. Eisenbei\\ss, The YETI Collaboration: W. P. Chen, T. O. B. Schmidt, T. Pribulla, T. R\\\"oll, X. Zhou, Z.-Y. Wu","submitted_at":"2012-03-23T15:34:27Z","abstract_excerpt":"GM Cep in the young (~4 Myr) open cluster Trumpler 37 has been known to be an abrupt variable and to have a circumstellar disk with very active accretion. Our monitoring observations in 2009-2011 revealed the star to show sporadic flare events, each with brightening of < 0.5 mag lasting for days. These brightening events, associated with a color change toward the blue, should originate from an increased accretion activity. Moreover, the star also underwent a brightness drop of ~1 mag lasting for about a month, during which the star became bluer when fainter. Such brightness drops seem to have "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1203.5271","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"}