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Selection Functions in Astronomical Data Modeling, with the Space Density of White Dwarfs as a Worked Example

  • Authors: Hans-Walter Rix, David W. Hogg, Douglas Boubert, Anthony G. A. Brown, Andrew Casey, Ronald Drimmel, Andrew Everall, Morgan Fouesneau, and Adrian M. Price-Whelan

2021 The Astronomical Journal 162 142.

  • Provider: AAS Journals

Caption: Figure 3.

Distribution of objects in the CAMD after removing the (dominant subset of) presumably spurious objects, by requiring an astrometric fidelity of paf > 0.9 from Rybizki et al. (2021). This cut, cast as ﹩{S}_{{ \mathcal C }}^{\mathrm{data}\,\mathrm{quality}}({p}_{\mathrm{af}}| {\boldsymbol{q}})﹩, eliminates most spurious sources but leaves ≥95% of the spectroscopically confirmed WDs with G < 19.5 unaffected.

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