Information on resource 'A Gaia DR2 mock stellar catalog'
This catalogue is a simulation of the Gaia DR2 stellar content using
Galaxia (a tool to sample stars from a Besancon-like Milky Way model),
3d dust extinction maps and the latest PARSEC Isochrones. It is
mimicking the Gaia DR2 data model and an apparent magnitude limit of
g=20,7. Extinctions and photometry in different bands have also been
included in a supplementary table as well as uncertainty estimates
using a scaled nominal error model.
Services defined within this resource descriptor
Tables defined within this resource descriptor
- gdr2mock.astrometric_performance2
This table gives numerical factors to be applied to the sky-averaged
astrometric errors for the different astrometric parameters as
function of ecliptic latitude β, including the effect of the variation
of the number of transits over the sky. Source:
https://www.cosmos.esa.int/web/gaia/table-2
- gdr2mock.astrometric_performance6
This table gives numerical factors to be applied to the sky-averaged
astrometric errors for the different astrometric parameters as
function of ecliptic latitude β, including the effect of the variation
of the number of transits over the sky. Source:
https://www.cosmos.esa.int/web/gaia/table-6
- gdr2mock.generated_data
This contains the data actually generated. Users probably want to use
the gdr2mock.main table that (fairly well) follows the Gaia DR2 data
model.
- gdr2mock.main – queryable through TAP and ADQL
A synthetic Milky Way catalog mimicking GDR2 in stellar content and
data model.
- gdr2mock.photometry – queryable through TAP and ADQL
This table contains simulated absolute magnitudes to about 0.1 mag
precision for all the stars, as well as extinctions in several bands;
To use it, join it USING (parsec_index) with the gdr2mock.main table.
- gdr2mock.raw_exts
Extinctions for Gaia DR2 mock photometry. This is joined into the
parsec_phot view.
- gdr2mock.raw_phot
Absolute magnitude for Gaia DR2 mock in various photometric bands.
This is joined with the raw_extinctions to give the
gdr2mock.photometry.
Copyright, License, Acknowledgements
[Manage RD]