Beecroft Institute for Particle Astrophysics and Cosmology

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Clustering in the VIRMOS survey: Expected cosmic errors

ASTR SOC P 200 (1999) 153-157

Authors:

S Colombi, S Charlot, JEG Devriendt

Abstract:

We predict the errors on counts-in-cells statistics measured in the future VIRMOS survey. Several effects are included, such as variation of clustering, biasing, and geometry. Most importantly for the survey strategy, sparse sampling appears to have no particular advantage in this case, especially for higher order statistics at high redshift. The predicted accuracy is a few percent for the variance, and about 10 percent for the skewness at z = 1 in a small dynamic range around 1 h(-1) Mpc.
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Cosmological evolution and hierarchical galaxy formation

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 309:4 (1999) 823-832

Authors:

W Percival, L Miller
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MAXIMA: an experiment to measure temperature anisotropy in the cosmic microwave background

3 K COSMOLOGY 476 (1999) 224-236

Authors:

AT Lee, P Ade, A Balbi, J Bock, J Borrill, A Boscaleri, BP Crill, P De Bernardis, H Del Castillo, P Ferreira, K Ganga, S Hanany, V Hristov, AH Jaffe, AE Lange, P Mauskopf, CB Netterfield, S Oh, E Pascale, B Rabii, PL Richards, J Ruhl, GF Smoot, CD Winant
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QSO clustering and the AAT 2dF QSO redshift survey

PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES 357:1750 (1999) 185-198

Authors:

BJ Boyle, SM Groom, RJ Smith, T Shanks, L Miller, N Loaring
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Semi-analytic models and background hydrogen-ionizing flux

ESO ASTROPHY SYMP (1999) 301-302

Authors:

JEG Devriendt, B Guiderdoni, SK Sethi

Abstract:

We estimate the contribution of galaxies to the cosmic background flux at 912 Angstrom by means of an extended semi-analytic model of galaxy formation and evolution which takes into account the absorption of Lyman-limit photons by HI and dust in the interstellar medium (ISM) of the galaxies. We find that, though the background Lyman-limit flux escaping from galaxies is negligible compared to the flux from quasars at high redshifts, these two contributions become comparable at z similar or equal to 0.
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