Exploring Dark Energy with Next-Generation Photometric Redshift Surveys

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dc.creatorZhan, Hu
dc.creatorAlbrecht, Andreas
dc.creatorCooray, Asantha
dc.creatorHabib, Salman
dc.creatorHeavens, Alan
dc.creatorHeitmann, Katrin
dc.creatorJain, Bhuvnesh
dc.creatorJee, Myungkook J.
dc.creatorKnox, Lloyd
dc.creatorMandelbaum, Rachel
dc.creatorNewman, Jeff
dc.creatorSchmidt, Samuel
dc.creatorScranton, Ryan
dc.creatorStrauss, Michael
dc.creatorTyson, Tony
dc.creatorVerde, Licia
dc.creatorWittman, David
dc.creatorWood-Vasey, Michael
dc.date2009-02-16
dc.date.accessioned2026-07-07T12:42:12Z
dc.date.available2026-07-07T12:42:12Z
dc.descriptionThe coming decade will be an exciting period for dark energy research, during which astronomers will address the question of what drives the accelerated cosmic expansion as first revealed by type Ia supernova (SN) distances, and confirmed by later observations. The mystery of dark energy poses a challenge of such magnitude that, as stated by the Dark Energy Task Force (DETF), "nothing short of a revolution in our understanding of fundamental physics will be required to achieve a full understanding of the cosmic acceleration." The lack of multiple complementary precision observations is a major obstacle in developing lines of attack for dark energy theory. This lack is precisely what next-generation surveys will address via the powerful techniques of weak lensing (WL) and baryon acoustic oscillations (BAO) -- galaxy correlations more generally -- in addition to SNe, cluster counts, and other probes of geometry and growth of structure. Because of their unprecedented statistical power, these surveys demand an accurate understanding of the observables and tight control of systematics. This white paper highlights the opportunities, approaches, prospects, and challenges relevant to dark energy studies with wide-deep multiwavelength photometric redshift surveys. Quantitative predictions are presented for a 20000 sq. deg. ground-based 6-band (ugrizy) survey with 5-sigma depth of r~27.5, i.e., a Stage 4 survey as defined by the DETF.
dc.descriptionScience white paper submitted to the US Astro2010 Decadal Survey
dc.identifierhttps://arxiv.org/abs/0902.2599
dc.identifierhttp://arxiv.org/abs/0902.2599
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/219991
dc.subjectCosmology and Nongalactic Astrophysics
dc.titleExploring Dark Energy with Next-Generation Photometric Redshift Surveys
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