Quote:
Originally Posted by Atmos
Just read it  I'll do a dot point progression.
- Stars formed earlier in the universes history has less metals (elements other than hydrogen and helium).
- Molecular Clouds with a lower metallicity will form statistically larger stars than the present day. They burn faster and hotter so a more "efficient" at making black holes.
- Globular Clusters are gravitationally bound so many of what originally formed is still there (except gas).
- Stars larger than maybe 15-18 solar masses formed black holes.
- Gravitational interactions in a closed system tend to force heavier objects towards their cores (black holes move towards the centre).
- Stellar mass black holes merge and become intermediate mass black holes. |
Very interesting Colin.
How does one actually detect black holes in globular clusters, the Keplerian orbits of nearby stars?
Another possibility of detection is during the black hole merger.
Now that we know gravitational waves are the real deal and there will a number of gravitational wave detectors coming on line in the next few years, the incidence of black hole mergers will increase and most importantly the ability of pinpointing the source.
Regards
Steven