Dissemin is shutting down on January 1st, 2025

Published in

American Astronomical Society, Astrophysical Journal, 1(702), p. L61-L65, 2009

DOI: 10.1088/0004-637x/702/1/l61

Links

Tools

Export citation

Search in Google Scholar

Subdegree Sunyaev-Zel'dovich Signal From Multifrequency Boomerang Observations

Journal article published in 2009 by Marcella Veneziani, A.; Center for Cosmology University of California Irvine CA 92697 Amblard, A.; Center for Cosmology University of California Irvine CA 92697 Cooray, Francesco Piacentini, D.; Dipartimento di Fisica Università di Roma “Tor Vergata” Rome Italy; Institute of Cosmology and Gravitation University of Portsmouth UK Pietrobon, Paolo Serra, Par A. R.; Department of Physics and Astronomy Cardiff University UK Ade, P.; Dipartimento di Fisica Università di Roma “La Sapienza” Rome Italy de Bernardis, Jj J.; Jet Propulsion Laboratory Pasadena CA 91109 USA; California Institute of Technology CA 91125 Bock, J. R.; CITA University of Toronto ON M5s 3H8 Canada Bond, A.; Department of Physics MIT Cambridge MA 02139 de Oliveira-Costa, J.; Computational Research Division LBNL Berkeley CA 94720 Borrill, A.; Ifac-Cnr 50127 Firenze Italy Boscaleri, Paolo Cabella, Cr R.; Theoretical Physics Group Imperial College London UK Contaldi and other authors.
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

Full text: Download

Red circle
Preprint: archiving forbidden
Red circle
Postprint: archiving forbidden
Green circle
Published version: archiving allowed
Upload
Policy details
Data provided by SHERPA/RoMEO

Abstract

The Sunyaev-Zel'dovich (SZ) effect is the inverse Compton-scattering of cosmic microwave background (CMB) photons by hot electrons in the intervening gas throughout the universe. The effect has a distinct spectral signature that allows its separation from other signals in multifrequency CMB data sets. Using CMB anisotropies measured at three frequencies by the BOOMERANG 2003 flight we constrain SZ fluctuations in the 10 arcmin to 1 deg angular range. Propagating errors and potential systematic effects through simulations, we obtain an overall upper limit of 15.3 μK (2σ) for rms SZ fluctuations in a broad bin between multipoles of 250 and 1200 at the Rayleigh-Jeans (RJ) end of the spectrum. The resulting upper limit on the local universe normalization of the density perturbations with BOOMERANG SZ data alone is σSZ 8 < 1.14 at the 95% confidence level. When combined with other CMB anisotropy and SZ measurements, we find σSZ 8 < 0.92 (95% c.l.).