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Proceedings Paper

BaR-SPOrt experiment
Author(s): Mario Zannoni; S. Cortiglioni; G. Bernardi; Ettore Carretti; S. Cecchini; C. Macculi; Ennio Morelli; C. Sbarra; Giulio Ventura; Luciano Nicastro; J. Monari; M. Poloni; S. Poppi; Vincenzo Natale; M. Baralis; O. Peverini; R. Tascone; G. Virone; Andrea Boscaleri; E. Pascale; Giuliano Boella; S. Bonometto; Massimo Gervasi; Giorgio Sironi; M. Tucci; R. Nesti; R. Fabbri; Pierluigi De Bernardis; Marco DePetris; S. Masi; M. V. Sazhin; E. N. Vinyajkin
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Paper Abstract

BaR-SPOrt (Balloon-borne Radiometers for Sky Polarisation Observations) is an experiment to measure the linearly polarized emission of sky patches at 32 and 90 GHz with sub-degree angular resolution. It is equipped with high sensitivity correlation polarimeters for simultaneous detection of both the U and Q stokes parameters of the incident radiation. On-axis telescope is used to observe angular scales where the expected polarization of the Cosmic Microwave Background (CMBP) peaks. This project shares most of the know-how and sophisticated technology developed for the SPOrt experiment onboard the International Space Station. The payload is designed to flight onboard long duration stratospheric balloons both in the Northern and Southern hemispheres where low foreground emission sky patches are accessible. Due to the weakness of the expected CMBP signal (in the range of microK), much care has been spent to optimize the instrument design with respect to the systematics generation, observing time efficiency and long term stability. In this contribution we present the instrument design, and first tests on some components of the 32 GHz radiometer.

Paper Details

Date Published: 14 February 2003
PDF: 12 pages
Proc. SPIE 4843, Polarimetry in Astronomy, (14 February 2003); doi: 10.1117/12.458610
Show Author Affiliations
Mario Zannoni, IASF-CNR (Italy)
Univ. degli Studi di Milano (Italy)
S. Cortiglioni, IASF-CNR (Italy)
G. Bernardi, IASF-CNR (Italy)
Ettore Carretti, IASF-CNR (Italy)
S. Cecchini, IASF-CNR (Italy)
C. Macculi, IASF-CNR (Italy)
Ennio Morelli, IASF-CNR (Italy)
C. Sbarra, IASF-CNR (Italy)
Giulio Ventura, IASF-CNR (Italy)
Luciano Nicastro, IASF-CNR (Italy)
J. Monari, IRA-CNR (Italy)
M. Poloni, IRA-CNR (Italy)
S. Poppi, IRA-CNR (Italy)
Vincenzo Natale, IRA-CNR (Italy)
M. Baralis, IRITI-CNR (Italy)
O. Peverini, IRITI-CNR (Italy)
R. Tascone, IRITI-CNR (Italy)
G. Virone, IRITI-CNR (Italy)
Andrea Boscaleri, IRITI-CNR (Italy)
E. Pascale, IRITI-CNR (Italy)
Giuliano Boella, Univ. degli Studi di Milano (Italy)
S. Bonometto, Univ. degli Studi di Milano (Italy)
Massimo Gervasi, Univ. degli Studi di Milano (Italy)
Giorgio Sironi, Univ. degli Studi di Milano (Italy)
M. Tucci, Instituto de Fisica de Cantabria (Spain)
R. Nesti, Osservatorio Astrofisico di Arcetri (Italy)
R. Fabbri, Univ. degli Studi di Firenze (Italy)
Pierluigi De Bernardis, Univ. degli Studi di Roma La Sapienza (Italy)
Marco DePetris, Univ. degli Studi di Roma La Sapienza (Italy)
S. Masi, Univ. degli Studi di Roma La Sapienza (Italy)
M. V. Sazhin, Moscow State Univ. (Russia)
E. N. Vinyajkin, NIRFI (Russia)

Published in SPIE Proceedings Vol. 4843:
Polarimetry in Astronomy
Silvano Fineschi, Editor(s)

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