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The bias of galaxies and the density of the universe from the 2dF galaxy redshift survey
Licia Verde, Alan F. Heavens, Will J. Percival +1
By studying the bispectrum of the galaxy distribution in the 2dF galaxy redhsift survey (2dFGRS), we have shown that 2dFGRS galaxies are unbiased tracers of the mass distribution.…
Star Formation and Metallicity History of the SDSS galaxy survey: unlocking the fossil record
Benjamin Panter, Alan F. Heavens, Raul Jimenez
Using MOPED we determine non-parametrically the star-formation and metallicity history of over 37,000 high-quality galaxy spectra from the Sloan Digital Sky Survey (SDSS) early dat…
Non-Gaussian Signatures in the Cosmic Background Radiation from Warm Inflation
S. Gupta, A. Berera, A. F. Heavens +1
We calculate the bispectrum of the gravitational field fluctuations generated during warm inflation, where dissipation of the vacuum potential during inflation is the mechanism for…
Observations of the Hubble Deep Field South with the Infrared Space Observatory - II. Associations and star formation rates
R. G. Mann, S. Oliver, R. Carballo +15
We present results from a deep mid-IR survey of the Hubble Deep Field South (HDF-S) region performed at 7 and 15um with the CAM instrument on board ISO. We found reliable optical/n…