A spectroscopic map of the Galactic centre: Observations and resolved stars
Context. The Galactic centre (GC) region contains a dense accumulation of stars that can be separated into two components: a mildly flattened and extremely dense nuclear star cluster (NSC) and a surrounding more extended and more flattened nuclear stellar disc (NSD). Previous studies have collected...
| Autores: | , , , , , , , , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2025 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/390749 |
| Acceso en línea: | http://hdl.handle.net/10261/390749 |
| Access Level: | acceso abierto |
| Palabra clave: | Stars: early-type Stars: late-type Galaxy: center Galaxy: kinematics and dynamics |
| Sumario: | Context. The Galactic centre (GC) region contains a dense accumulation of stars that can be separated into two components: a mildly flattened and extremely dense nuclear star cluster (NSC) and a surrounding more extended and more flattened nuclear stellar disc (NSD). Previous studies have collected a few thousand spectra of the inner NSC and the outer NSD and have measured line-of-sight velocities and metallicities. Until now, such measurements exist only for a few hundred stars in the region where the stellar surface density transitions from being dominated by the NSC to being dominated by the NSD. |
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