Al-Wardat’s Method for Analyzing Binary and Multiple Stellar Systems

Abstract

The astrophysical studies showed that there is no direct method to estimate the fundamental parameters of the individual components of binary and multiple stellar systems (BMSSs). So, computational methods are the only way to reveal the mysteries of these systems. Introduced in 2002 for the first time, Al-Wardat’s method for analyzing BMSSs proved its ability, reliability, and flexibility in analyzing BMSSs. We present here a brief description of the method, along with the analysis of the binary system HIP 111170. The method is suitable for all kinds of BMSSs. It gives a precise dynamical parallax for any system given that it has a good orbital solution, either outer or inner, visual or spectroscopic orbits. The analysis of the system HIP111170 showed that the system consists of two main-sequence solar-metallicity stars with an age of 2.239 Gyr, formed by fragmentation.