(a) Dynamical orbitals of open spinor BECs of m=0. Dashed lines: γ_a1 = γ_a−1 = 0, γ_a0 = 1/3; Solid line: γ_a1 = γ_a−1 =1/3, γ_a0 = 0. For comparison with the close system, the dynamical orbitals of the system without dissipation are shown (dotted lines). (b) The dynamical evolution of the particle number of each component for γ_a1 = γ_a−1 = 0, γ_a0 = 1/3. (c) The dynamical evolution of the particle number of each component for γ_a1 = γ_a−1 =1/3, γ_a0 = 0.