 This study investigates iras states which are the lowest energy states at given non-zero momentum in a balanced spin, $ backslash t-frag, 1, 2, $ femigas with attractive delta function interactions in one dimension using the Young-Gordon model. The corresponding B-Thansatz equations are solved for finite particle number and in the thermodynamic limit. Properties corresponding to the soliton-like nature of the iras excitations are calculated, including the missing particle number, phase step, and inertial and physical masses. The inertial-to-physical mass ratio is found to be unity in the limits of strong and weak attraction and falls to $ backslash approximately 78 cents in the crossover regime. This result contrasts with one-dimensional mean field theory which predicts a divergent mass ratio in the weakly attractive limit. An exact mapping is used to predict the existence and properties of dark-soliton-like excitations in the super-tongue's girard gas and prospects for experimental observations are briefly discussed. This article was authored by Safi Eschamelov and Joachim Brand. We are article.tv, links in the description below.