Dark Matter in Groups and Clusters of Galaxies
| dc.creator | Einasto, J. | |
| dc.creator | Einasto, M. | |
| dc.date | 1999-09-26 | |
| dc.date.accessioned | 2026-07-07T02:33:29Z | |
| dc.date.available | 2026-07-07T02:33:29Z | |
| dc.description | A short story of dark matter as an example of a scientific revolution is given. The characteristics of stellar populations are compared with those of dark halos. The mean mass-to-luminosity ratio of stellar populations is found to be 4 in Solar units. Dark matter around galaxies, and in groups, clusters and voids is discussed. Modern data suggest that the overall density of matter in the Universe is 0.3 +- 0.1, about 80% of this matter is non-baryonic dark matter, and about 20% is baryonic, mostly in the form of hot intra-cluster and intragroup gas, the rest in stellar populations of galaxies. The Universe is dominated by dark energy (cosmological constant) term. | |
| dc.description | 13 pages LaTeX text (sty files added), 2 PostScript Figures, submitted to Proceedings of the IAU Coll. 174 "Small Galaxy Groups", Turku, Finland, June 13-18, 1999 | |
| dc.identifier | https://arxiv.org/abs/astro-ph/9909437 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/9909437 | |
| dc.identifier | Publ.Astron.Soc.Pac. 209 (2000) 360-372 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/14859 | |
| dc.subject | Astrophysics | |
| dc.title | Dark Matter in Groups and Clusters of Galaxies | |
| dc.type | text |