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We find 132 face-on and low inclination galaxies with central star formationdriven biconical gas outflows (FSFB) in the SDSS MaNGA (Mapping Nearby Galaxiesat APO) survey. The FSFB galaxies show either double peaked or broadenedemission line profiles at their centres. The peak and maximum outflowvelocities are 58 and 212 km/s, respectively. The gas velocity dispersionreveals a mild dependence on the central star formation surface densitycompatible with models of gas dispersion powered by the Jeans instability ingas clumps or by gas turbulence dissipation. We estimate the gas outflow rateand conclude that the central gas depletion time does not depend on galacticmass. In turn, the ratio of the gas outflow rate to the gas consumption rate bythe star formation is low in massive galaxies and high in low-mass objects,while the star formation is a more rapid process of the gas consumption. Wecompare properties of the FSFB galaxies with a control sample of 375 comparisongalaxies and find that the FSFB objects have high central concentration of starformation, and also younger central stellar population with respect to theirperiphery. We analysed the environment of the galaxies and identified nearbysatellites and elements of low surface brightness structure. We see that manytidal-enhanced features that can be assigned to early and intermediate stagesof galactic interaction are much more frequent in the FSFB galaxies withrespect to the comparison sample. We conclude that the gas should bereplenished via the accretion from small satellites.

SDSS IV MaNGA -- Star-Formation Driven Biconical Outflows in Face-On Galaxies