UVIT FUV image for NGC 1512

The UltraViolet Imaging Telescope (UVIT) onboard AstroSat enables us to characterize the star-forming regions in the galaxy with a superior spatial resolution of ~85pc in the galaxy rest frame. We identified and characterized 175 star-forming regions in the UVIT FUV image of NGC 1512 and correlated with the neutral hydrogen (Hi) distribution. Extinction correction was applied to the estimated photometric magnitude.We traced the star-forming spiral arms of the galaxy and studied the star formation properties across the galaxy in detail.

We detected localized regions of star formation enhancement and distortions in the galactic disk. We found this to be consistent with the distribution of Hi in the galaxy. This is evidence of past and ongoing interactions affecting the star formation properties of the galaxy.

We studied the properties of the inner ring. We find that the regions of the inner ring show maximum star formation rate density (log(SFRD_mean_[M_{sun}_/yr/kpc^2^])~-1.7) near the major axis of the bar, hinting at a possible crowding effect in these regions. The region of the bar in the galaxy is also depleted of UV emission.

This absence suggests that the galactic bar may have played an active role in the redistribution of gas and quenching of star formation inside identified bar region. Hence, we suggest that both the secular and environmental factors might be influencing the evolution of NGC 1512.