A Gaia DR2 mock stellar catalog
We present a mock catalog of Milky Way stars, matching in volume and depth the content of the Gaia data release 2 (GDR2). We generated our catalog using Galaxia, a tool to sample stars from a Besançon Galactic model, together with a realistic 3D dust extinction map. The catalog mimics the complete...
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| Main Authors: | , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
2018 May 21
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| In: |
Publications of the Astronomical Society of the Pacific
Year: 2018, Volume: 130, Issue: 989, Pages: 074101 |
| ISSN: | 1538-3873 |
| DOI: | 10.1088/1538-3873/aabd70 |
| Online Access: | Verlag, Volltext: http://dx.doi.org/10.1088/1538-3873/aabd70 Verlag, Volltext: https://doi.org/10.1088%2F1538-3873%2Faabd70 
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| Author Notes: | Jan Rybizki, Markus Demleitner, Morgan Fouesneau, Coryn Bailer-Jones, Hans-Walter Rix, and René Andrae |
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| 520 | |a We present a mock catalog of Milky Way stars, matching in volume and depth the content of the Gaia data release 2 (GDR2). We generated our catalog using Galaxia, a tool to sample stars from a Besançon Galactic model, together with a realistic 3D dust extinction map. The catalog mimics the complete GDR2 data model and contains most of the entries in the Gaia source catalog: five-parameter astrometry, three-band photometry, radial velocities, stellar parameters, and associated scaled nominal uncertainty estimates. In addition, we supplemented the catalog with extinctions and photometry for non-Gaia bands. This catalog can be used to prepare GDR2 queries in a realistic runtime environment, and it can serve as a Galactic model against which to compare the actual GDR2 data in the space of observables. The catalog is hosted through the virtual observatory GAVO’s Heidelberg data center (http://dc.g-vo.org/tableinfo/gdr2mock.main) service, and thus can be queried using ADQL as for GDR2 data. | ||
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