de Bernardis, P., Ade, Peter A. R.  ORCID: https://orcid.org/0000-0002-5127-0401, Bock, J. J., Bond, J. R., Borrill, J., Boscaleri, A., Coble, K., Crill, B. P., de Gasperis, G., De Troia, G., Farese, P. C., Ferreira, P. G., Ganga, K., Giacometti, M., Hivon, E., Hristov, V. V., Iacoangeli, A., Jaffe, A. H., Lange, A. E., Martinis, L., Masi, S., Mason, P., Mauskopf, Philip Daniel ORCID: https://orcid.org/0000-0001-6397-5516, Melchiorri, A., Miglio, L., Montroy, T., Netterfield, C. B., Pascale, Enzo ORCID: https://orcid.org/0000-0002-3242-8154, Piacentini, F., Pogosyan, D., Pongetti, F., Prunet, S., Rao, S., Romeo, G., Ruhl, J. E., Scaramuzzi, F., Sforna, D. and Vittorio, N.
2001.
First results from the BOOMERanG experiment.
Presented at: Cosmology and particle physics : CAPP 2000. AIP Conference,
Verbier, Switzerland,
17-28 July 2000.
Published in: Durrer, Ruth, Garcia-Bellido, Juan and Shaposhnikov, Mikhail eds.
Cosmology and particle physics : CAPP 2000 : Verbier, Switzerland, 17-28 July 2000 (Proceedings).
AIP conference proceedings
(555)
Melville, NY:
American Institute of Physics,
pp. 85-94.
10.1063/1.1363510
|
Abstract
We report the first results from the BOOMERanG experiment, which mapped at 90, 150, 240 and 410 GHz a wide (3%) region of the microwave sky with minimal local contamination. From the data of the best 150 GHz detector we find evidence for a well defined peak in the power spectrum of temperature fluctuations of the Cosmic Microwave Background, localized at =197+/-6, with an amplitude of (68+/-8)μKCMB. The location, width and amplitude of the peak is suggestive of acoustic oscillations in the primeval plasma. In the framework of inflationary adiabatic cosmological models the measured spectrum allows a Bayesian estimate of the curvature of the Universe and of other cosmological parameters. With reasonable priors we find Ω=(1.07+/-0.06) and ns=(1.00+/-0.08) (68%C.L.) in excellent agreement with the expectations from the simplest inflationary theories. We also discuss the limits on the density of baryons, of cold dark matter and on the cosmological constant.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Date Type: | Publication |
| Status: | Published |
| Schools: | Schools > Physics and Astronomy |
| Subjects: | Q Science > QB Astronomy |
| Publisher: | American Institute of Physics |
| ISBN: | 1563969866 |
| ISSN: | 0094-243X |
| Last Modified: | 27 Oct 2022 08:19 |
| URI: | https://orca.cardiff.ac.uk/id/eprint/61956 |
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