nergy density parameter</p>
</dd>
<dt>a<span class="classifier">float</span></dt><dd><p>parameter of the Madau-Fragos star formation rate</p>
</dd>
<dt>b<span class="classifier">float</span></dt><dd><p>parameter of the Madau-Fragos star formation rate</p>
</dd>
<dt>c<span class="classifier">float</span></dt><dd><p>parameter of the Madau-Fragos star formation rate</p>
</dd>
<dt>d<span class="classifier">float</span></dt><dd><p>parameter of the Madau-Fragos star formation rate</p>
</dd>
</dl>
</dd>
</dl>
</dd