Beecroft Institute for Particle Astrophysics and Cosmology

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Tuning in to the early universe

PHYSICS WORLD 15:8 (2002) 21-22
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Type Ia supernovae and the formation history of early-type galaxies

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 336:4 (2002) 1181-1187

Authors:

I Ferreras, J Silk
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Tests for Gaussianity of the MAXIMA-1 cosmic microwave background map

Physical Review Letters 87:25 (2001)

Authors:

JHP Wu, A Balbi, J Borrill, PG Ferreira, S Hanany, AH Jaffe, AT Lee, B Rabii, PL Richards, GF Smoot, R Stompor, CD Winant

Abstract:

A series of Gaussianity tests were performed on the MAXIMA-1 CMB map. To optimize both the resolution and the signal-to-noise ratio for these tests, a map with 5972 square pixels of 8' each was used. Using these high-quality data, the Gaussianity of CMB anisotropy on subdegree scales was probed for the first time. It was found that the MAXIMA-1 CMB map is consistent with Gaussianity on angular scales between 10 arcmin and 5 deg.
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Have Acoustic Oscillations been Detected in the Current Cosmic Microwave Background Data?

(2001)

Authors:

M Douspis, PG Ferreira
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Have Acoustic Oscillations been Detected in the Current Cosmic Microwave Background Data?

ArXiv astro-ph/0111400 (2001)

Authors:

M Douspis, PG Ferreira

Abstract:

The angular power spectrum of the Cosmic Microwave Background has been measured out to sufficiently small angular scale to encompass a few acoustic oscillations. We use a phenomenological fit to the angular power spectrum to quantify the statistical significance of these oscillations and discuss the cosmological implications of such a finding.
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