{"paper":{"title":"Characterization of the Praesepe Star Cluster by Photometry and Proper Motions with 2MASS, PPMXL, and Pan-STARRS","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. K. Pandey, B. Goldman, C. C. Lin, C. H. Lee, C.-H. Tang, C. K. Huang, C. Waters, C. W. Stubbs, D. G. Monet, E. A. Magnier, G. A. Luppino, H. Flewelling, J. L. Tonry, J. N. Heasley, J. S. Morgan, K. C. Chambers, K. W. Hodapp, M. E. Huber, M. F. Tsai, N. Kaiser, N. Metcalfe, N. Panwar, P. A. Price, P. F. Wang, P. M. Onaka, P. W. Draper, R. H. Lupton, R. Jedicke, R. J. Wainscoat, R.-P. Kudritzki, T. Grav, W. P. Chen, W. S. Burgett, W. Sweeney","submitted_at":"2014-01-29T07:49:38Z","abstract_excerpt":"Membership identification is the first step to determine the properties of a star cluster. Low-mass members in particular could be used to trace the dynamical history, such as mass segregation, stellar evaporation, or tidal stripping, of a star cluster in its Galactic environment. We identified member candidates with stellar masses $\\sim$0.11--2.4 Msun of the intermediate-age Praesepe cluster (M44), by using Pan-STARRS and 2MASS photometry, and PPMXL proper motions. Within a sky area of 3 deg radius, 1040 candidates are identified, of which 96 are new inclusions. Using the same set of selectio"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1401.7424","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"}