A Gaia DR2 Mock Stellar Catalog

被引：48

作者：

Rybizki, Jan ^{[1
]}

Demleitner, Markus ^{[2
]}

Fouesneau, Morgan ^{[1
]}

Bailer-Jones, Coryn ^{[1
]}

Rix, Hans-Walter ^{[1
]}

Andrae, Rene ^{[1
]}

机构：

[1] Max Planck Inst Astron, Konigstuhl 17, D-69117 Heidelberg, Germany

[2] Heidelberg Univ, Astron Rechen Inst, Zentrum Astron, Monchhofstr 12-14, D-69120 Heidelberg, Germany

来源：

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC | 2018年 / 130卷 / 989期

基金：

欧洲研究理事会;

关键词：

virtual observatory tools; astronomical databases: miscellaneous; catalogs; parallaxes; proper motions; stars: kinematics and dynamics; stars: luminosity function; mass function; stars: statistics; Galaxy: general; PARSEC EVOLUTIONARY TRACKS; MASSIVE STARS; PHOTOMETRY;

D O I：

10.1088/1538-3873/aabd70

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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 Besancon 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.

引用

页数：7

共 36 条

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