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Observed galaxy luminosities (derived from redshifts) hold information on thelarge-scale peculiar velocity field in the form of spatially correlatedscatter, which allows for bounds on bulk flows and the growth rate of matterdensity perturbations using large galaxy redshift surveys. We apply thisluminosity approach to galaxies from the recent SDSS Data Release 13. Our goalis twofold. First, we take advantage of the recalibrated photometry to identifypossible systematic errors relevant to our previous analysis of earlier data.Second, we seek improved constraints on the bulk flow and the normalized growthrate f$\sigma_{8}$ at z ~ 0.1. Our results confirm the robustness of ourmethod. Bulk flow amplitudes, estimated in two redshift bins with 0.02 <z$_{1}$ < 0.07 < z$_{2}$ < 0.22, are generally smaller than in previousmeasurements, consistent with both the updated photometry and expectations forthe $\Lambda$CDM model. The obtained growth rate, f$\sigma_{8}$ = 0.48 +/-0.16, is larger than, but still compatible with, its previous estimate, andcloser to the reference value of Planck. Rather than precision, the importanceof these results is due to the fact that they follow from an independent methodthat relies on accurate photometry, which is a top requirement fornext-generation photometric catalogs.

Speed from light: growth rate and bulk flow at z ~ 0.1 from improved SDSS DR13 photometry