We present the results of a diffuse radiation survey carried out at millimeter and submillimeter wavelengths in the Aries and Taurus sky regions. A balloon-borne telescope with 0 degrees.85 FWHM resolution and four millimeterwave bands scanned 147 independent sky directions. From the multiband observations we were able to separate two independent components: thermal emission from cirrus dust and cosmic microwave background (CMB) temperature fluctuations. A statistically significant detection of anisotropies is found in the data of the CMB channel: Delta T-sky = (24 +/- 7) mu K rms (95% CL plus 10% calibration error). Assuming uncorrelated Gaussian temperature fluctuations we find a band averaged estimate of the CMB anisotropy power spectrum C-l = (20 +/- 9) mu K-2 at l similar or equal to 110. The data are consistent with anisotropies in a ''standard'' Omega(b) = 0.05, n = 1 model normalized to the rms anisotropy detected by COBE Differential Microwave Radiometers

Foregrounds removal and CMB fluctuations in a multiband anisotropy experiment: ARGO 1993 / Masi, Silvia; DE BERNARDIS, Paolo; DE PETRIS, Marco; M., Gervasi; A., Boscaleri; E., Aquilini; L., Martinis; F., Scaramuzzi. - In: THE ASTROPHYSICAL JOURNAL. - ISSN 0004-637X. - STAMPA. - 463:(1996), pp. 47-50. [10.1086/310069]

Foregrounds removal and CMB fluctuations in a multiband anisotropy experiment: ARGO 1993

MASI, Silvia;DE BERNARDIS, Paolo;DE PETRIS, Marco;
1996

Abstract

We present the results of a diffuse radiation survey carried out at millimeter and submillimeter wavelengths in the Aries and Taurus sky regions. A balloon-borne telescope with 0 degrees.85 FWHM resolution and four millimeterwave bands scanned 147 independent sky directions. From the multiband observations we were able to separate two independent components: thermal emission from cirrus dust and cosmic microwave background (CMB) temperature fluctuations. A statistically significant detection of anisotropies is found in the data of the CMB channel: Delta T-sky = (24 +/- 7) mu K rms (95% CL plus 10% calibration error). Assuming uncorrelated Gaussian temperature fluctuations we find a band averaged estimate of the CMB anisotropy power spectrum C-l = (20 +/- 9) mu K-2 at l similar or equal to 110. The data are consistent with anisotropies in a ''standard'' Omega(b) = 0.05, n = 1 model normalized to the rms anisotropy detected by COBE Differential Microwave Radiometers
1996
01 Pubblicazione su rivista::01a Articolo in rivista
Foregrounds removal and CMB fluctuations in a multiband anisotropy experiment: ARGO 1993 / Masi, Silvia; DE BERNARDIS, Paolo; DE PETRIS, Marco; M., Gervasi; A., Boscaleri; E., Aquilini; L., Martinis; F., Scaramuzzi. - In: THE ASTROPHYSICAL JOURNAL. - ISSN 0004-637X. - STAMPA. - 463:(1996), pp. 47-50. [10.1086/310069]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/126071
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