Density ρ (m−3)

vrel = 30 km∙sec−1

vrel = 300 km∙sec−1

vrel = 3000 km∙sec−1

5 × 1015

4.4 × 1021, 0.019

4.4 × 1022, 0.19

4.4 × 1023, 1.9

5 × 1014

2.1 × 1021, 0.061

2.1 × 1022, 0.61

2.1 × 1023, 6.1

5 × 1013

9.8 × 1020, 0.19

9.8 × 1021, 1.9

9.8 × 1022, 19.1

5 × 1012

4.6 × 1020, 0.61

4.6 × 1021, 6.1

4.6 × 1022, 60.6