Precise measurement of CMB polarisation from Dome-C: the BRAIN and CLOVER experiments

• Main Authors: Piat, M., Rosset, C.
• Other Authors: AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), F. Combes, D. Barret, T. Contini, F. Meynadier, and L. Pagani, BRAIN, CLOVER
• Format: Conference Object
• Language: English
• Published: HAL CCSD 2004
• Subjects: [PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO]; [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph]; Antarc*; Antarctica
• Online Access: http://hal.in2p3.fr/in2p3-00023457; http://hal.in2p3.fr/in2p3-00023457v3/document; http://hal.in2p3.fr/in2p3-00023457v3/file/piat.pdf

SF2A-2004: Semaine de l'Astrophysique Francaise, meeting held in Paris, France, June 14-18, 2004. The characterisation of CMB polarisation is one of the next challenge in observationnal cosmology. This is especially true for the so-called B-modes that are at least 3 order of magnitude lower than CMB temperature fluctuations. A precise measurement of the angular power spectrum of these B-modes will give important constraints on inflation parameters. In this talk, I will describe two complementary experiments, BRAIN and CLOVER, dedicated to CMB polarisation measurement. These experiments are proposed to be installed in Dome-C, Antarctica, to take advantage of the extreme dryness of the atmosphere and to allow long integration time.