magnitudes of our matched objects, which are the NUV calibrated magnitude and FUV calibrated magnitude, respectively, and “calibrated" means that values have been converted to AB magnitudes (see help in the pipeline data guide[^7]).

Finally, we select 1,802 LSBGs and 5,886 HSBGs with FUV-to-NIR multiwavelength observations. The histogram distributions of their $\mu_{0}$(B) and redshift are given in Fig. \[his.mu.z\]. The median values of $\mu_{0}$(B) are 22.24 mag arcsec$^{-2}$ for LSBGs and 21.35 mag arcsec$^{-2}$ for HSBGs (mean as 22.28 and 21.25), respectively. The corresponding median values of redshifts are 0.0732 and 0.0801 (mean as 0.0810 and 0.0886), respectively.

Corrections on magnitudes
-------------------------

The effects of foreground Galactic extinction on the observed magnitudes were calculated by using the reddening maps of Schlegel, Finkbeiner & Davis (1998). The corresponding values of the SDSS and 2MASS magnitudes have been provided by Blanton et al. (2003) at the NYU-VAGC[^8] catalog (thanks to them). For the GALEX FUV and NUV magnitudes, the corrections for interstellar extinctions were calculated using $A(FUV)=8.16E(B-V)$ and $A(NUV)=8.90E(B-V)$ (Rey et al. 2007; Kinman et al. 2007), and the $E(B-V)$ were taken from Schlegel, Finkbeiner & Davis (1998).

The magnitudes in our sample are then corrected for the redshifts. We calculated the 