Table 1: The critical velocity that the downflow must reach in order to drive an enthalpy flux sufficient to sustain the radiative emission.
$T_{\rm a}=1$ MK 3 5 10 20

n=10⁹ cm^-3 $\vert v_{\rm critical}\vert=1.5$ km s^-1 1.0 0.9 0.9 0.9

$5\times10^9$ 7.6 4.9 4.7 4.5 4.4

10¹⁰ 15.3 9.9 9.4 9.0 8.9

$5\times10^{10}$ 76.0 49.0 47.0 45.0 44.0

10¹¹ 153.0 99.0 94.0 90.0 89.0

**Table 1:** The critical velocity that the downflow must reach in order to drive an enthalpy flux sufficient to sustain the radiative emission.
	$T_{\rm a}=1$ MK	3	5	10	20
n=10⁹ cm^-3	$\vert v_{\rm critical}\vert=1.5$ km s^-1	1.0	0.9	0.9	0.9
$5\times10^9$	7.6	4.9	4.7	4.5	4.4
10¹⁰	15.3	9.9	9.4	9.0	8.9
$5\times10^{10}$	76.0	49.0	47.0	45.0	44.0
10¹¹	153.0	99.0	94.0	90.0	89.0

Source LaTeX | All tables | In the text