Nonlinear evolution of spherical perturbation in a non-flat Universe with cosmological constant
| dc.creator | Lokas, Ewa L. | |
| dc.creator | Hoffman, Yehuda | |
| dc.date | 2001-08-17 | |
| dc.date | 2002-07-25 | |
| dc.date.accessioned | 2026-07-07T01:59:40Z | |
| dc.date.available | 2026-07-07T01:59:40Z | |
| dc.description | We generalize the spherical collapse model for the formation of bound objects to apply in a Universe with arbitrary positive cosmological constant. We calculate the critical condition for collapse of an overdense region and give exact values of the characteristic densities and redshifts of its evolution. | |
| dc.description | 7 pages, 5 figures, results for quintessence removed (as obtained with an unjustified assumption of the conservation of energy inside the overdense region) | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0108283 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0108283 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/3208 | |
| dc.subject | Astrophysics | |
| dc.title | Nonlinear evolution of spherical perturbation in a non-flat Universe with cosmological constant | |
| dc.type | text |