{"paper":{"title":"A New Model for the Milky Way Bar","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Hongsheng Zhao, R. M. Rich, Shude Mao, Yougang Wang","submitted_at":"2012-09-05T13:21:26Z","abstract_excerpt":"We use Schwarzschild's orbit-superposition technique to construct self-consistent models of the Galactic bar. Using $\\chi^2$ minimisation, we find that the best-fit Galactic bar model has a pattern speed $\\Omega_{\\rm p}=60 \\rm{km s^{-1} kpc^{-1}}$, disk mass $\\rm{M_{\\rm d}=1.0\\times10^{11}M_{\\odot}}$ and bar angle $\\theta_{\\rm bar}=20^{\\circ}$ for an adopted bar mass $\\rm{M_{\\rm bar}=2\\times10^{10}M_{\\odot}}$. The model can reproduce not only the three-dimensional and projected density distributions but also velocity and velocity dispersion data from the BRAVA survey. We also predict the prope"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1209.0963","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"}