Thermodynamic functions of three-dimensional ising model near the phase transition point with allowance for corrections to scaling. II. The case $T<T_c$

Explicit expressions are obtained for the thermodynamic functions of the three-dimensional Ising model with allowance for confluent corrections at temperatures below the critical value. It is shown that the critical amplitudes of these corrections can be represented in the form of a universal part and a nonuniversal factor, which depends on the microscopic parameters of the Hamiltonian. The obtained results are compared with the case $T>T_c$. Expressions are found for some combinations of the critical amplitudes. The contribution made by the corrections to scaling to the specific heat of the system is estimated.