Open Access

Table 1

Sample sizes.

Sample Counts
Full PTF light curve database 598 975 024
Cleaned PTF R-band sample 70920904
Matched
     SDSS spectra 1 748 047
     WISE 57 007 069
     PS1 70 891 378
     WISE and PS1 56991 591
     All surveys 1 613 916

Notes. Sample sizes before and after selecting and cleaning PTF light curves and matching with sources in SDSS, WISE, and PS1.

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