Druv Punjabi L&S Sciences
Constraining Type Ia Supernovae Luminosities
Type Ia supernovae (SNe Ia) are a category of exploding stars, and serve as one of the most important tools for probing our universe today. Because of their extreme and consistent luminosity, they are widely used to measure distances to faraway galaxies. Determining these large-scale distances allows a better understanding of the universe’s expansion, and thus of dark energy itself, the driver behind the expansion’s acceleration. Several recent studies have suggested that the luminosities of these supernovae can be better standardized if we factor in the properties of their host galaxies, such as the galaxy’s mass or age. This project aims to statistically correlate these properties with models of SNe Ia luminosities. We also pursue a new method of standardizing these luminosities, which would ultimately improve the cosmological applications of distance measurements with SNe Ia, advancing our understanding of dark energy.