Professor Pedro Ferreira: Publications

Measurement of a peak in the cosmic microwave background power spectrum from the North American test flight of Boomerang

ASTROPHYSICAL JOURNAL 536:2 (2000) L59-L62

Authors:

PD Mauskopf, PAR Ade, P de Bernardis, JJ Bock, J Borrill, A Boscaleri, BP Crill, G DeGasperis, G De Troia, P Farese, PG Ferreira, K Ganga, M Giacometti, S Hanany, VV Hristov, A Iacoangeli, AH Jaffe, AE Lange, AT Lee, S Masi, A Melchiorri, F Melchiorri, L Miglio, T Montroy, CB Netterfield, E Pascale, F Piacentini, PL Richards, G Romeo, JE Ruhl, E Scannapieco, F Scaramuzzi, R Stompor, N Vittorio

Tensor microwave anisotropies from a stochastic magnetic field - art. no. 043001

PHYSICAL REVIEW D 61:4 (2000) ARTN 043001

Authors:

R Durrer, PG Ferreira, T Kahniashvili

A measurement of Omega from the North American test flight of BOOMERANG

(1999)

Authors:

A Melchiorri, PAR Ade, P de Bernardis, JJ Bock, J Borrill, A Boscaleri, BP Crill, G De Troia, P Farese, PG Ferreira, K Ganga, G de Gasperis, M Giacometti, VV Hristov, AH Jaffe, AE Lange, S Masi, PD Mauskopf, L Miglio, CB Netterfield, E Pascale, F Piacentini, G Romeo, JE Ruhl, N Vittorio

A measurement of Omega from the North American test flight of BOOMERANG

ArXiv astro-ph/9911445 (1999)

Authors:

Abstract:

We use the angular power spectrum of the Cosmic Microwave Background, measured during the North American test flight of the BOOMERANG experiment, to constrain the geometry of the universe. Within the class of Cold Dark Matter models, we find that the overall fractional energy density of the universe, Omega, is constrained to be 0.85 < Omega < 1.25 at the 68% confidence level. Combined with the COBE measurement and the high redshift supernovae data we obtain new constraints on the fractional matter density and the cosmological constant.

Measurement of a Peak in the Cosmic Microwave Background Power Spectrum from the North American test flight of BOOMERANG

ArXiv astro-ph/9911444 (1999)

Authors:

Abstract:

We describe a measurement of the angular power spectrum of anisotropies in the Cosmic Microwave Background (CMB) from 0.3 degrees to ~10 degrees from the North American test flight of the BOOMERANG experiment. BOOMERANG is a balloon-borne telescope with a bolometric receiver designed to map CMB anisotropies on a Long Duration Balloon flight. During a 6-hour test flight of a prototype system in 1997, we mapped > 200 square degrees at high galactic latitudes in two bands centered at 90 and 150 GHz with a resolution of 26 and 16.6 arcmin FWHM respectively. Analysis of the maps gives a power spectrum with a peak at angular scales of ~1 degree with an amplitude ~70 uK.

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