{"paper":{"title":"The relation between globular cluster systems and supermassive black holes in spiral galaxies. The case study of NGC 4258","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"2), (2) Argelander Institut f\\\"ur Astronomie, (3) Instituto de Astrof\\'isica, (4) Max-Planck Institut f\\\"ur Astronomie, (5) Herzberg Institute of Astrophysics, 7820436 Macul, Auf dem H\\\"ugel 71, Av. Vicu\\~na Mackenna 4860, BC V9E 2E7, Campus Morelia, Canada), Chile, C.P. 58089, D-53121 Bonn, D-69117 Heidelberg, Germany, Gustavo Bruzual-A.(1), Iskren Y. Georgiev (4), Karla \\'Alamo-Mart\\'inez (3), K\\\"onigstuhl 17, Laurent Loinard (1), Luis Lomel\\'i-N\\'u\\~nez (1), Mexico, Michoacan, National Research Council of Canada, Pontificia Universidad Cat\\'olica de Chile, Roberto P. Mu\\~noz (4), Rosa A. Gonz\\'alez-L\\'opezlira (1, Santiago, Stephen Gwyn (5) ((1) Instituto de Radioastronomia y Astrofisica, Thomas H. Puzia (3), UNAM, Universit\\\"at Bonn, Victoria, Yasna \\'Ordenes-Brice\\~no (3)","submitted_at":"2016-12-16T21:05:01Z","abstract_excerpt":"We aim to explore the relationship between globular cluster total number, $N_{\\rm GC}$, and central black hole mass, $M_\\bullet$, in spiral galaxies, and compare it with that recently reported for ellipticals. We present results for the Sbc galaxy NGC 4258, from Canada France Hawaii Telescope data. Thanks to water masers with Keplerian rotation in a circumnuclear disk, NGC 4258 has the most precisely measured extragalactic distance and supermassive black hole mass to date. The globular cluster (GC) candidate selection is based on the ($u^*\\ -\\ i^\\prime$) vs. ($i^\\prime\\ -\\ K_s$) diagram, which"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1612.05655","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"}