An empirical model of the Gaia DR3 selection function

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Dataset information

Country of origin
Updated
2023.08.30 00:00
Created
2023.06.21
Available languages
English
Keywords
Gaia, gaiaunlimited, selection function
Quality scoring

Dataset description

Precomputed maps of the M10 parameter used to predict the completeness of the Gaia DR3 source catalogue. allsky_M10_hpx7.hdf5 is a tessellation of the whole sky in Galactic nested healpix scheme of order 7. allsky_uniq_10.fits uses an adaptive resolution and is based on the 'uniq' numbering of healpix tiles. Regions of higher density use a finer resolution, up to order 10, chosen so that every tile contains a minimum of twenty sources to compute M10 from. Paper: https://ui.adsabs.harvard.edu/abs/2023A%26A...669A..55C/abstract Tutorial using the GaiaUnlimited python package to query these maps: https://github.com/gaia-unlimited/gaiaunlimited/blob/main/docs/notebooks/dr3-empirical-completeness.ipynb Documentation for the GaiaUnlimited package: https://gaiaunlimited.readthedocs.io/en/latest/
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