The TOOT survey and the largest structure in the universe

Gary J. Hill; Joseph R. Tufts; Marcel Bergmann; Steve Rawlings; Katherine Brand

doi:10.1117/12.457722

13 February 2003 TOOT survey and the largest structure in the universe

Gary J. Hill, Joseph R. Tufts, Marcel Bergmann, Steve Rawlings, Katherine Brand

Proceedings Volume 4834, Discoveries and Research Prospects from 6- to 10-Meter-Class Telescopes II; (2003) https://doi.org/10.1117/12.457722
Event: Astronomical Telescopes and Instrumentation, 2002, Waikoloa, Hawai'i, United States

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 S_151MHz = 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.

Citation Download Citation

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

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
8 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Remote sensing

Galactic astronomy

Galaxy groups and clusters

Telescopes

Observatories

Spectrographs

Code division multiplexing

Show All Keywords

Keywords/Phrases

Search In:

Publication Years