Statistical and regression analyses of detected extrasolar systems

We have introduced some new functions (called “normalized parameters”) of usual parameters of extrasolar systems. One pair of these parameters exhibits areas, where the density of exoplanets is higher. One of these parameters along with the specific angular momentum indicate two groups of exoplanets with the Gaussian distributions. We have found that for five multi-planet extrasolar systems, the power function leads to the best determination of the product of the exoplanet distance and the stellar surface temperature by the specific angular momentum. We have revealed the role of the Schmidt law. We have also considered the spectral classes of the stars. We have also explored the data of 2321 exoplanet candidates from the Kepler mission.