An empirical model of the Gaia DR3 selection function
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/
Files
Files
(41.1 MB)
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md5:4d80621b40aead69ee6759954b7292b2
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md5:6686e54478d222d81699a6f9e3226186
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36.3 MB | Download |
Additional details
Related works
- Is documented by
- Journal article: 10.1051/0004-6361/202244784 (DOI)
- Preprint: 10.48550/arXiv.2208.09335 (DOI)
Funding
References
- Cantat-Gaudin et al. (2023) bibcode:2023A&A...669A..55C arXiv:2208.09335