{"paper":{"title":"A detailed census of variable stars in the globular cluster NGC 6333 (M9) from CCD differential photometry","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. Arellano Ferro, A. Elyiv, C. Diehl, C. Liebig, C. Snodgrass, C. Vilela, D. Juncher, D.M. Bramich, D. Ricci, E. Giannini, E. Kerins, F.V. Hessman, G. Scarpetta, H. Korhonen, J. M. Andersen, J. Skottfelt, J. Southworth, J. Surdej, J. Tregloan-Reed, K.A. Alsubai, K. Harps{\\o}e, K. Kuppuswamy, L. Mancini, M. Dominik, M. Hundertmark, M. Mathiasen, M. Rabus, M.T. Penny, N. Kains, O. Wertz, P. Browne, R. Figuera Jaimes, S. Calchi Novati, S. Dreizler, S. Rahvar, Sunetra Giridhar, T.C. Hinse, U. G. J{\\o}rgensen, V. Bozza, Y. Damerdji","submitted_at":"2013-06-13T19:33:20Z","abstract_excerpt":"We report CCD $V$ and $I$ time-series photometry of the globular cluster NGC 6333 (M9). The technique of difference image analysis has been used, which enables photometric precision better than 0.05 mag for stars brighter than $V \\sim 19.0$ mag, even in the crowded central regions of the cluster. The high photometric precision has resulted in the discovery of two new RRc stars, three eclipsing binaries, seven long-term variables and one field RRab star behind the cluster. A detailed identification chart and equatorial coordinates are given for all the variable stars in the field of our images "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.3206","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"}