Description page is here.
From values using h-units to assuming h=0.7:
| Value with h dependence | Value assuming h=0.7 | |
| line-of-sight distance, and transverse distance from distance times angular separation | 1.00 h-1 Mpc | 1.43 Mpc |
| volume from distance cubed | 1.00 h-3 Mpc3 | 2.92 Mpc3 |
| luminosity that is proportional to distance squared | 1.00 h-2 L☉ | 2.04 L☉ |
| number density of galaxies from inverse volume | 1.00 h3 Mpc-3 | 0.343 Mpc-3 |
| luminosity density from combining previous two | 1.00 h L☉ Mpc-3 | 0.70 L☉ Mpc-3 |
| absolute magnitude from -2.5 log luminosity | -20.00 + 5 log h | -20.77 |
| mass from scaled luminosity | 1.00 h-2 M☉ | 2.04 M☉ |
| mass from velocity squared times transverse distance | 1.00 h-1 M☉ | 1.43 M☉ |
From values assuming h=0.7 to using h-units:
| Value assuming h=0.7 | Value with h dependence | |
| line-of-sight distance, and transverse distance from distance times angular separation | 1.00 Mpc | 0.70 h-1 Mpc |
| volume from distance cubed | 1.00 Mpc3 | 0.343 h-3 Mpc3 |
| luminosity that is proportional to distance squared | 1.00 L☉ | 0.49 h-2 L☉ |
| number density of galaxies from inverse volume | 1.00 Mpc-3 | 2.92 h3 Mpc-3 |
| luminosity density from combining previous two | 1.00 L☉ Mpc-3 | 1.43 h L☉ Mpc-3 |
| absolute magnitude from -2.5 log luminosity | -20.00 | -19.23 + 5 log h |
| mass from scaled luminosity | 1.00 M☉ | 0.49 h-2 M☉ |
| mass from velocity squared times transverse distance | 1.00 M☉ | 0.70 h-1 M☉ |
Written by Ivan Baldry, 2015 December.
Links: - return to my home page; return to my research page.