sample source mass1 and mass2 with primordial origin. Refer to Eqn. 1 and 4 of Ng et al. 2022</p>
<dl class="field-list">
<dt class="field-odd">Parameters<span class="colon">:</span></dt>
<dd class="field-odd"><dl>
<dt><strong>size</strong><span class="classifier"><cite>int</cite></span></dt><dd><p>Number of samples to draw</p>
</dd>
<dt><strong>m_min</strong><span class="classifier"><cite>float</cite></span></dt><dd><p>Minimum mass of the black hole (primordial) (Msun)
default: 10.</p>
</dd>
<dt><strong>m_