{"paper":{"title":"On a new method to estimate distance, reddening and metallicity of RR Lyrae stars using optical/near-infrared ($B$,$V$,$I$,$J$,$H$,$K$) mean magnitudes: $\\omega$ Centauri as a first test case","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"(10) INAF-Osservatorio Astronomico di Capodimonte, 11), (11) SSDC, (12) INAF-Osservatorio di Astrofisica e Scienza dello Spazio di Bologna, (13) Department of Astronomy, (14) Department of Physics, (15) Cerro Tololo Inter-American Observatory, (16) Department of Astronomy, (17) Instituto de Astrof\\'isica de Canarias, 18), (18) Departamento de Astrofisica, (19) Department of Physics, 2), (20) INAF-Osservatorio Astronomico di Trieste, (21) Department of Astronomy, (22) Universite de Nice Sophia-antipolis, (23) European Southern Observatory, (2) INAF-Osservatorio Astronomico di Roma, (3) Instituto Milenio de Astrofisica, 4), (4) Departamento de Fisica, (5) NRC-Herzberg, (6) Kiso Observatory, 7), (7) The Observatories of the Carnegie Institution for Science, (8) INAF-Osservatorio Astronomico d'Abruzzo, (9) Department of Physics, Ames, Ann Arbor, A.R. Walker (15) ((1) Department of Physics, Astronomy, Astrophysics, Austin, B. Chaboyer (9), B.F. Madore (7), Boca Raton, Bologna, CA, Canada, C.E. Martinez-Vazquez (15), Chicago, Chile, C.K. Gilligan (9), CNRS, C. Sneden (21), Dartmouth College, D. Magurno (1), Dominion Astrophysical Observatory, E. Valenti (23), Facultad de Ciencias Exactas, FL 33431, Florida Atlantic University, France, F. Thevenin (22), Garching bei Munchen, G. Bono (1, Germany), G. Fiorentino (12), G. Iannicola (2), Hanover, IA, I. Ferraro (2), IL, Institute of Astronomy, Iowa State University, Italy, J.R. Neeley (19), Laboratoire Lagrange, La Laguna, La Serena, McDonald Observatory, M. Dall'Ora (10), M. Fabrizio (2, MI, M. Marconi (10), M. Marengo (14), M. Mateo (16), M. Monelli (17, M. Nonino (20), Monte Porzio Catone, Nagano Japan, Napoli, National Optical Astronomy Observatory, NH, Nice, N. Matsunaga (6), Observatoire de la Cote d'Azur, Pasadena, P.B. Stetson (5), P. Marrese (2, R. Buonanno (8), R.L. Beaton (7), Roma, Santiago, School of Science, S. Marinoni (2, Spain, Tenerife, Teramo, The University of Texas, The University of Tokyo, Trieste, TX, Universidad Andres Bello, Universidad de La Laguna, Universit\\`a di Roma Tor Vergata, University of Chicago, University of Michigan, USA, V.F. Braga (3, Victoria BC, W.L. Freedman (13","submitted_at":"2018-11-17T00:57:15Z","abstract_excerpt":"We developed a new approach to provide accurate estimates of metal content, reddening and true distance modulus of RR Lyrae stars (RRLs). The method is based on homogeneous optical ($BVI$) and near-infrared ($JHK$) mean magnitudes and on predicted period--luminosity--metallicity relations ($IJHK$) and absolute mean magnitude--metallicity relations ($BV$). We obtained solutions for three different RRL samples in $\\omega$ Cen: first overtone (RRc,~90), fundamental (RRab,~80) and global (RRc+RRab) in which the period of first overtones were fundamentalized. The metallicity distribution shows a we"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.07069","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"}