Understanding planet formation processes through analysis of data from single- and multi-exoplanetary systems

Antara Bhattacharya, India 13-15

Using data from the NASA exoplanet archive, I examined if the distributions of planetary mass, radius, orbital period, stellar temperature, and metallicity are statistically different in single- and multi-planetary systems. The cumulative frequency distributions of these parameters were analyzed and compared, and a two-sample Kolmogorov-Smirnov test was performed. I showed that planet properties and stellar metallicity are significantly different for single- and multi-planetary systems. Orbital period ratios of planets in multi-planetary systems were also evaluated to find two-body resonances. My findings provide insights into planet formation mechanisms and also confirm that the solar system is an extremely atypical multi-planetary system.

Show more