 class="p">,</span> <span class="n">flux_map</span><span class="p">,</span> <span class="n">chi2_fits</span> <span class="o">=</span> <span class="n">cube</span><span class="o">.</span><span class="n">fit_cube</span><span class="p">([</span><span class="s1">&#39;Halpha&#39;</span><span class="p">,</span> <span class="s1">&#39;NII6548&#39;</span><span class="p">,</span> <span class="s1">&#39;NII6583&#39;</span><span class="p">,</span> <span class="s1">&#39;SII6716&#39;</span><span class="p">,</span> <span cl