{"paper":{"title":"The Age and Metallicity Dependence of the Near-Infrared Magnitudes of Red Clump Stars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"2), (2) Nishi-Harima Astronomical Observatory, (3) Kiso Observatory, (4) Miyagi University of Education, Aoba-ku, Aramaki Aoba, Center for Astronomy, Environmental Sciences, Graduate School of Science, Hiroki Onozato (1, Hyogo, Institute of Astronomy, Institute of Natural, Japan, Japan), Kiso-gun, Kiso-machi, Mitake, Miyagi, Nagano, Nishigaichi, Sayo-cho, Sayo-gun, School of Science, Sendai, Shogo Nishiyama (4) ((1) Astronomical Institute, The University of Tokyo, Tohoku University, University of Hyogo, Yoshifusa Ita (1), Yoshikazu Nakada (3)","submitted_at":"2019-04-29T18:00:08Z","abstract_excerpt":"Red clump (RC) stars are widely used as an excellent standard candle. To make them even better, it is important to know the dependence of their absolute magnitudes on age and metallicity. We observed star clusters in the Large Magellanic Cloud to fill age and metallicity parameter space, which previous work has not observationally studied. We obtained the empirical relations of the age and metallicity dependence of absolute magnitudes $M_{J}$, $M_{H}$, and $M_{K_{S}}$, and colours $J - H$, $J - K_{S}$, and $H - K_{S}$ of RC stars, although the coefficients have large errors. Mean near-infrared"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.12874","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"}