{"paper":{"title":"On the chemical abundances of Miras in clusters: V1 in the metal-rich globular NGC 5927","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. Arai, A. Watase, B. Lemasle, B. Proxauf, C. Martinez-Vasquez, C. Sneden, C. Yasui, D. Magurno, D. Minniti, D. Taniguchi, E. Valenti, F. Thevenin, G. Bono, G. Fiorentino, G. Iannicola, H. Kawakita, H. Sameshima, I. Ferraro, I. Saviane, J.L. Prieto, J. Neeley, K. Fukue, K. Takenaka, L. Inno, M. Bergemann, M. Dall'Ora, M. Fabrizio, M. Jian, M. Marengo, M. Monelli, M. Nonino, M. Romaniello, M. Urbaneja-Perez, M. Zoccali, N. Kobayashi, N. Matsunaga, N. Sanna, P. Francois, P.N. Przybilla, R. Buonanno, R. Gilmozzi, R.-P. Kudritzki, R. SIlva, S. Hamano, S. Kondo, S. Marinoni, S. Otsubo, S.S. Elgueta, T. Tsujimoto, T. Yoshikawa, V. D'Orazi, V.F. Braga, Y. Ikeda","submitted_at":"2018-02-20T20:28:14Z","abstract_excerpt":"We present the first spectroscopic abundance determination of iron, alpha-elements (Si, Ca and Ti) and sodium for the Mira variable V1 in the metal-rich globular cluster NGC 5927. We use high-resolution (R~ 28,000), high signal-to-noise ratio (~200) spectra collected with WINERED, a near-infrared (NIR) spectrograph covering simultaneously the wavelength range 0.91--1.35 micron. The effective temperature and the surface gravity at the pulsation phase of the spectroscopic observation were estimated using both optical (V) and NIR time-series photometric data. We found that the Mira is metal-rich "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.07314","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"}