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We study how the void environment affects the formation and evolution ofgalaxies in the universe by comparing the ratio of dark matter halo mass tostellar mass of galaxies in voids with galaxies in denser regions. Usingspectroscopic observations from the SDSS MaNGA DR15, we estimate the darkmatter halo mass of 642 void galaxies and 938 galaxies in denser regions. Weuse the relative velocities of the H-alpha emission line across the galaxy'ssurface to measure the rotation curve of each galaxy because the kinematics ofthe interstellar medium is smoother than the stellar kinematics. We find thatneither the stellar-to-halo-mass relation nor the relationship between thegas-phase metallicity and the ratio of dark matter halo mass to stellar mass isaffected by the void environment. We also observe no difference in thedistribution of the ratio of dark matter halo mass to stellar mass between voidgalaxies and galaxies in denser regions, implying that the shape of the darkmatter halo profile is independent of a galaxy's environment.

The influence of the void environment on the ratio of dark matter halo mass to stellar mass in SDSS MaNGA galaxies