J. Richard Gott

Learn More
We measure the large-scale real-space power spectrum P (k) using a sample of 205,443 galaxies from the Sloan Digital Sky Survey, covering 2417 effective square degrees with mean redshift z ≈ 0.1. We employ a matrix-based method using pseudo-Karhunen-Loève eigenmodes, producing uncorrelated minimumvariance measurements in 22 k-bands of both the clustering(More)
Éric Aubourg, Stephen Bailey, Julian E. Bautista, Florian Beutler, Vaishali Bhardwaj, Dmitry Bizyaev, Michael Blanton, Michael Blomqvist, Adam S. Bolton, Jo Bovy, Howard Brewington, J. Brinkmann, Joel R. Brownstein, Angela Burden, Nicolás G. Busca, William Carithers, Chia-Hsun Chuang, Johan Comparat, Rupert A. C. Croft, Antonio J. Cuesta, Kyle S. Dawson,(More)
We present the power spectrum of the reconstructed halo density field derived from a sample of Luminous Red Galaxies (LRGs) from the Sloan Digital Sky Survey Seventh Data Release (DR7). The halo power spectrum has a direct connection to the underlying dark matter power for k 6 0.2 h Mpc, well into the quasi-linear regime. This enables us to use a factor of(More)
Building on the legacy of the Sloan Digital Sky Survey (SDSS-I and II), SDSS-III is a program of four spectroscopic surveys on three scientific themes: dark energy and cosmological parameters, the history and structure of the Milky Way, and the population of giant planets around other stars. In keeping with SDSS tradition, SDSS-III will provide regular(More)
We investigate the dependence of physical properties of galaxies brighter than Mr = −18.0 + 5logh in the Sloan Digital Sky Survey (SDSS) on environment, as measured by local density using an adaptive smoothing kernel. We find that variations of galaxy properties with environment are almost entirely due to the dependence of morphology and luminosity on(More)
We present the topology of a volume-limited sample of 11,884 galaxies, selected from an apparent-magnitude limited sample of over 100,000 galaxies observed as part of the Sloan Digital Sky Survey (SDSS). The data currently cover three main regions on the sky: one in the Galactic north and one in the south, both at zero degrees declination, and one area in(More)
The question of first-cause has troubled philosophers and cosmologists alike. Now that it is apparent that our universe began in a Big Bang explosion, the question of what happened before the Big Bang arises. Inflation seems like a very promising answer, but as Borde and Vilenkin have shown, the inflationary state preceding the Big Bang could not have been(More)
In support of the new Sloan III survey, which will measure the baryon oscillation scale using Luminous Red Galaxies (LRG), we have run the largest N-body simulation to date using 4120 = 69.9 billion particles, and covering a volume of (6.592 hGpc). This is over 2000 times the volume of the Millennium Run, and corner-to-corner stretches all the way to the(More)
We have found a static electrically charged solution to the Einstein-Maxwell equations in a (2 + 1)-dimensional space-time. Studies of general relativity in lower dimensional space-times provide many new insights and a simplified arena for doing quantum mechanics. In (2+l)-dimensional space-time, solutions to the vacuum field equations are locally flat(More)