150. 1.0 75. 0.9 Norm 1 (v) Radial Velocity (km s') 0. 0.8 -75, 0.7 - 150. 0.7 1.5 1.7 0.0 0.2 0.8 1.0 0.9 1.3 Orbital Phase 0.4 0.6 Orbital Phase Figure 2 shows the V-band light curve and the radial velocity curve of the binary system V2080 Cyg (from banolu et al. 2008.). The measured period is P = 4.93355 days. 1. Can you derive the mass of the two components? 2. From the radial velocity curve, can you guess the approximate value of the orbits eccentricity? 3. From the light curve, can you estimate the ratio of the temperatures of the two stars? 150. 1.0 75. 0.9 Norm 1 (v) Radial Velocity (km s') 0. 0.8 -75, 0.7 - 150. 0.7 1.5 1.7 0.0 0.2 0.8 1.0 0.9 1.3 Orbital Phase 0.4 0.6 Orbital Phase Figure 2 shows the V-band light curve and the radial velocity curve of the binary system V2080 Cyg (from banolu et al. 2008.). The measured period is P = 4.93355 days. 1. Can you derive the mass of the two components? 2. From the radial velocity curve, can you guess the approximate value of the orbits eccentricity? 3. From the light curve, can you estimate the ratio of the temperatures of the two stars