Dark Lessons from the Sloan Digital Sky Survey
| dc.creator | Nichol, Robert | |
| dc.date | 2007-01-03 | |
| dc.date.accessioned | 2026-07-07T07:38:25Z | |
| dc.date.available | 2026-07-07T07:38:25Z | |
| dc.description | The true nature of dark energy remains unclear: It is either a strange fluid in the Universe, with a negative effective pressure, or a breakdown in General Relativity on large scales. This question can only be answered through a suite of different observations as a function of redshift. In this paper, I will briefly review our attempts to achieve this goal using data from the Sloan Digital Sky Survey (SDSS). In particular, I will present new measurements of the Baryon Acoustic Oscillations (BAO) from the SDSS DR5 galaxy redshift survey as well as outline the on-going SDSSII Supernova Survey, which has already detected (in 2005-06) over 300 SN Ia's over the redshift range 0.05<z<0.4. I will also discuss the latest measurements of the Integrated Sachs-Wolfe (ISW) effect that now probe the density of dark energy at z~1.5. All these measurements are still consistent with a lambda-dominated universe. | |
| dc.description | 10 pages, 3 figure, to appear in ASP Conference Series (Proceedings of the "Cosmic Frontiers" conference held in Durham, 31st July - 4th August 2006) | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0701073 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0701073 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/121076 | |
| dc.subject | Astrophysics | |
| dc.title | Dark Lessons from the Sloan Digital Sky Survey | |
| dc.type | text |