From ridges to manifolds: 3D characterization of the moving groups in the Milky Way disc
[Context] The details of the effect of the bar and spiral arms on the disc dynamics of the Milky Way are still unknown. The stellar velocity distribution in the solar neighbourhood displays kinematic substructures, which are possibly signatures of these processes and of previous accretion events. Wi...
| Autores: | , , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2022 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/296784 |
| Acceso en línea: | http://hdl.handle.net/10261/296784 |
| Access Level: | acceso abierto |
| Palabra clave: | Galaxy: disk Galaxy: kinematics and dynamics Galaxy: structure Galaxy: evolution Methods: data analysis |
| Sumario: | [Context] The details of the effect of the bar and spiral arms on the disc dynamics of the Milky Way are still unknown. The stellar velocity distribution in the solar neighbourhood displays kinematic substructures, which are possibly signatures of these processes and of previous accretion events. With the Gaia mission, more details of these signatures, such as ridges in the Vϕ − R plane and thin arches in the Vϕ − VR plane, have been revealed. The positions of these kinematic substructures, or moving groups, can be thought of as continuous manifolds in the 6D phase space, and the ridges and arches as specific projections of these manifolds. |
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