Translator Disclaimer
13 February 2003 TOOT survey and the largest structure in the universe
Author Affiliations +
Abstract
The Texas-Oxford One Thousand (TOOT) radio source redshift survey is aimed at understanding the evolution of the radio source population down to flux density of S151MHz = 100 mJy. This low frequency survey has a depth equivalent to about five times the NVSS limit, but does not contain the population of star forming galaxies detected in the NVSS survey. In addition, the survey reaches a high enough surface density of sources on the sky to probe large-scale structure at z ~ 1. Radio sources inhabit massive elliptical galaxies, and as such provide excellent sparse tracers of large-scale structure that are both easily identified and easily observed with spectrographs to map out their space distribution. We review the properties of the TOOT survey and its current status. We also report the discovery, using radio sources, of a huge structure at z=0.27 traced by radio sources and galaxy clusters. Such superstructures are aggregates of clusters seeded by rare (> 3σ) peaks in the power spectrum at recombination. The radio sources and galaxy clusters are shown to trace the same matter distribution. This is the first demonstration of radio AGN as direct sparse tracers of the underlying dark matter distribution. The extent of the superstructure is of order 100 h-1 Mpc in three dimensions, making it the largest structure known, and indicating a mass similar to that of the Great Attractor. We report the properties of the superstructure, and consider the implications of its existence.
© (2003) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Gary J. Hill, Joseph R. Tufts, Marcel Bergmann, Steve Rawlings, and Katherine Brand "TOOT survey and the largest structure in the universe", Proc. SPIE 4834, Discoveries and Research Prospects from 6- to 10-Meter-Class Telescopes II, (13 February 2003); https://doi.org/10.1117/12.457722
PROCEEDINGS
8 PAGES


SHARE
Advertisement
Advertisement
RELATED CONTENT

Overview of the James Webb Space Telescope (JWST) project
Proceedings of SPIE (August 17 2005)
Ukidna: the RAVE machine
Proceedings of SPIE (September 29 2004)
Chromos: space astrophysical observatory
Proceedings of SPIE (December 27 1999)
Keck 1 deployable tertiary mirror (K1DM3)
Proceedings of SPIE (September 16 2012)
Korea Microlensing Telescope Network: science cases
Proceedings of SPIE (September 16 2012)
SMARTS revealed
Proceedings of SPIE (July 29 2010)

Back to Top