{"paper":{"title":"CURious Variables Experiment (CURVE). CCD Photometry and Variable Stars in the field of open cluster NGC 637","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. Olech, K. Mularczyk, K. Szaruga, K. Zloczewski, M. Wisniewski, P. Kedzierski, P. Pietrukowicz, S. Starczewski","submitted_at":"2006-09-06T12:49:35Z","abstract_excerpt":"We present VI photometry for the open cluster NGC 637 which is located in the Cassiopeia region. Morphology of cluster color-magnitude diagram indicates that it is a young object with age of a few million years. The apparent distance modulus of the cluster is 13.9<(m-M)_V<14.3, while reddening is 0.69<E(V-I)<0.73. We estimated the heliocentric distance as 2.6<d<3.3 kpc. We also report the identification of two variable stars in NGC 637. One of the variables is a non-radial pulsating beta Cep-type star. Other one is a likely ellipsoidal variable, however its pulsating nature can not be excluded"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0609155","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"}