def get_Sigma_params(param_dict):
    """
    Extract and return parameters from dictionary for all 
    forms other than the powerlaw form
    """
    rScale = param_dict['rScale']
    rc = param_dict['rc']
    sScale = param_dict['sScale']
    df = param_dict['df']
    B = param_dict['B']
    C = param_dict['C']
    return rScale, rc, sScale, df, B, C