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We conduct a statistical study of black hole masses of barred and unbarredgalaxies in the IllustrisTNG100 cosmological magneto-hydrodynamicalsimulations. This work aims to understand the role of the bars in the growth ofcentral supermassive black hole mass and its implications on AGN fueling. Oursample consists of 1191 barred galaxies and 2738 unbarred galaxies in theIllustrisTNG100 simulations. To have an unbiased study, we perform our analysiswith an equal number of barred and unbarred galaxies by using variouscontrolled parameters like total galaxy mass, stellar mass, gas mass, darkmatter halo mass, etc. Except for the stellar mass controlling, we find thatthe median of the black hole mass distribution for barred galaxies is higherthan that of the unbarred ones indicating that stellar mass is a key parameterinfluencing the black hole growth. The higher mean accretion rate of the blackholes in barred galaxies, averaged since the bar forming epoch (z~2 ), explainsthe higher mean black hole masses in barred galaxies. Further, we also testthat these results are unaffected by other environmental processes likeminor/major merger histories and neighboring gas density of black hole.Although the relationship between stellar mass, bar formation, and black holegrowth is complex, with various mechanisms involved, our analysis suggests thatbars can play a crucial role in feeding black holes, particularly in galaxieswith massive stellar disks.

How does the presence of bar affects the fueling of supermassive black holes ? An IllustrisTNG100 perspective