Looking for signs of Anisotropic Cosmological Expansion in the High-z Supernova data
| dc.creator | Bochner, Brett | |
| dc.date | 2007-02-28 | |
| dc.date.accessioned | 2026-07-07T07:49:15Z | |
| dc.date.available | 2026-07-07T07:49:15Z | |
| dc.description | Several problematical epochs in cosmology, including the recent period of structure formation (and acceleration), require us to understand cosmic evolution during times when the basis of FRW expansion, the cosmological principle, does not completely hold true. We consider that the breakdown of isotropy and homogeneity at such times may be an important key towards understanding cosmic evolution. To study this, we examine fluctuations in the high-z supernova data to search for signs of large-scale anisotropy in the Hubble expansion. Using a cosmological-model-independent statistical analysis, we find mild evidence of real anisotropy in various circumstances. We consider the significance of these results, and the importance of further searches for violations of the cosmological principle. | |
| dc.description | 6 pages, 8 figures. (Adapted from Poster presented at the 22nd Texas Symposium. Includes minor fixes from the originally published Proceedings paper.) This work is an early analysis of Supernova data available during 2003-2004. To be followed by a fuller analysis of the more complete Supernova data sets becoming available in subsequent years | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0702730 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0702730 | |
| dc.identifier | In Proceedings of the 22nd Texas Symposium on Relativistic Astrophysics at Stanford University, Dec. 13-17, 2004; paper #1301, pp. 1-6 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/124775 | |
| dc.subject | Astrophysics | |
| dc.title | Looking for signs of Anisotropic Cosmological Expansion in the High-z Supernova data | |
| dc.type | text |