Description of the columns in catalog_jplus_dr1_halpha_local_galaxies.txt with the main properties of the 756 local galaxies analysed in Vilella-Rojo et al. 2021 (https://ui.adsabs.harvard.edu/abs/2021arXiv210104062V). If you have used this data in your work, please cite this paper. TILE_ID : Tile identificacion of the r-band image in the DR1. NUMBER : Identification number of the source in the tile. RA : Right ascension of the source (J2000). DEC : Declination of the source (J2000). z : spectroscopy redshift of the galaxy. It is set to 0.012 when no z_spec is available. Distance : Estimated distance to the galaxy. Disntance_err : Error in the distance. Flag : Information about the available distance information. 0 : No previous information. 1 : z_spec. 2 : z_spec and redshift independent estimation. Ha_flux : Halpha flux of the galaxy estimated with J-PLUS photometry from >1sigma emission pixels inside three effective radii. Corrected from dust and [NII] following the recipes in Vilella-Rojo+15. Ha_flux_err : Uncertainty in the Halpha flux. Ha_lum : Estimated Halpha luminosity (erg/s). Ha_lum_err : Uncertainty in Halpha luminosity (erg/s). Mass : Log of the stellar mass (Msun) estimated from the J-PLUS photometry of the galaxy inside three effective radii. Salpeter (1955) initial mass function was assumed. Mass_err : Uncertainty in log stellar mass. logSFR : Log of the star formation rate estimated from the Halpha luminosity. Salpeter (1955) initial mass function was assumed. logSFR_err : Uncertainty in log SFR. cov : Correlation coefficient between log stellar mass and log SFR. uJAVA-gSDSS : J-PLUS color from >3sigma emission pixels inside three effective radii. gSDSS-zSDSS : J-PLUS color from >3sigma emission pixels inside three effective radii. Flags_act : Information about the presence of nuclear activity. It is zero (i.e., no nuclear activity) in all the galaxies. Inclination_corr : Multiplicative correction to account for the missing flux on inclined systems, already applied in the reported log SFR. The details about this correction are provided in Logroño-García et al. 2021, in preparation. ----------------------------------- Version 1.0 by G. Vilella-Rojo. 11 / 01 / 2021. -----------------------------------