{ "id": "1411.3548", "version": "v1", "published": "2014-11-13T14:17:04.000Z", "updated": "2014-11-13T14:17:04.000Z", "title": "Determination of the Solar Galactocentric distance from masers kinemics", "authors": [ "A. T. Bajkova", "V. V. Bobylev" ], "comment": "8 pages, 2 figures, 1 table. Paper was presented at the Conference \"Modern Stellar Astronomy-2014\" held in Rostov-on-Don State University on May 28-30, 2014, accepted for pubication in Baltic Astronomy", "categories": [ "astro-ph.GA" ], "abstract": "We have determined the Galactic rotation parameters and the solar Galactocentric distance $R_0$ by simultaneously solving Bottlinger's kinematic equations using data on masers with known line-of-sight velocities and highly accurate trigonometric parallaxes and proper motions measured by VLBI. Our sample includes 93 masers spanning the range of Galactocentric distances R from 3 to 15 kpc. The solutions found are \\Omega_0 = 29.7+/-0.5 km s^{-1} kpc^{-1}, \\Omega'_0 = -4.20+/-0.11 km s^{-1} kpc^{-2}, \\Omega\"_0 =0.730+/-0.029 km s^{-1} kpc^{-3}, and R_0=8.03+/-0.12 kpc. In this case, the linear rotation velocity at the solar distance R_0 is V_0=238+/-6 km s^{-1}.", "revisions": [ { "version": "v1", "updated": "2014-11-13T14:17:04.000Z" } ], "analyses": { "keywords": [ "solar galactocentric distance", "masers kinemics", "determination", "galactic rotation parameters", "linear rotation velocity" ], "tags": [ "conference paper" ], "publication": { "journal": "Baltic Astronomy", "year": 2015, "volume": 24, "pages": 43 }, "note": { "typesetting": "TeX", "pages": 8, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2015BaltA..24...43B" } } }