A neutron star (mass 2.5 solar masses) is seen orbiting a bright blue star once every 0.65 years at a distance of 2.0 AU. The mass of the blue star is _____ solar masses.

Only enter your numerical answer below - do not include units.Report your answer to 2 decimal places.

Constants & Formulas (5) V. = Hd c = 3.00 x 108 m/s c = 3.00 x 10' km/s (6) T = 2.898 x 105 1 pc = 3.26 Ly 2 1 Mpc = 100 pc 1 Ly = 9.46 x 1015 m (7) V = C 1 nm = 10-9 m + 1 1 AU = 1.50 x 10 m L (8) B = And2 1 AU = 1.50 x 10* km H = 72 km/s/Mpc (9) L = AT R' o T 0 = 5.67 x 10-$ W/m?/K* R. TSun 2 L G = 6.673 x 10-11 m3/kg/s2 (10) RSun T VL Sun To = Tsun = 5780 K Lo = Lsun = 3.83 x 1026 W (11) dpc = Mo = Man = 2.00 x 1030 kg Ro = Rsun = 6.96 x 108 m (12) Mi+ M2 = Me = MEarth = 5.97 x 1024 kg (13) M = (C) Rog = R.Earth = 6.378 x 105 m 2GM (14) Rs = (1) d = ct C2 2n DA (15) L = (2) P2 = q3 360 L 2 GM (16) = 10- (Me -Musun) (3) Vescape = LSun VR GMIM2 (17) gravity (4) c = Xf R2