Atmospheric and Fundamental Parameters of the Individual Components of Multiple Stellar Systems

Abstract We present detailed analyses of eight triple stellar systems (lying between 20 and 155 pc) nine quadruple 250 with different configurations. Most these are hierarchical. The HIP 4239, 5588, 11072, 12548, 13498, 17895, 19915, 22607, 25240, 28614, 41171, 51255, 51966, 54611, 78977, 89234, 111805. followed a method that can be applied to all multiple systems, including the main sequence subgiant evolutionary stages, obtain their masses, ages, atmospheric fundamental parameters. These parameters were assured by combined analysis astrometric measurements, photometric dynamical analysis, synthetic photometry, metallicity, positions components on H-R diagram. estimated individual masses higher accuracy than those given solutions listed in MSC. results show each have precisely same age metallicity. This ensures fragmentation is most probable theory for formation systems. A quadratic fit was calculated mass–luminosity relation main-sequence subset components. found primary component has evolved off stage, some stars already entered stage.