Galactic Archeology with RAVE and TGAS
| Autor: | Steinmetz, Matthias, collaboration, the RAVE |
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| Rok vydání: | 2017 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1017/S1743921317008791 |
| Popis: | The 5th RAVE data release is based on 520,781 spectra ($R\approx7500$ in the CaT region at $8410$ - $8795$\AA) of 457,588 unique stars. RAVE DR5 provides radial velocities, stellar parameters and individual abundances for up to seven elements and distances found using isochrones for a considerable subset of these objects. In particular, RAVE DR5 has 255,922 stellar observations that also have parallaxes and proper motions from the Tycho-Gaia astrometric solution (TGAS) in Gaia DR1. The combination of RAVE and TGAS thus provides the currently largest overlap of spectroscopic and space-based astrometric data and thus can serve as a formidable preview of what Gaia is going to deliver in coming data releases. Basic properties of the RAVE+TGAS survey and its derived data products are presented as well as first applications w.r.t wave-like patterns in the disk structure. An outlook to the 6th RAVE data release is given. Comment: 4 pages, 2 figures, Proceedings of the IAU symposium 334 Rediscovering our Galaxy |
| Databáze: | arXiv |
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