Precision CMB polarization from Dome-c: The brain experiment

S. Masi, P. De Bernardis, C. Giordano, F. Nati, F. Piacentini, G. Polenta, M. Veneziani, M. Gervasi, G. Sironi, A. Tartari, M. Zannoni, S. Peterzen, J. Bartlett, Y. Giraud-Heraud, M. Piat, C. Rosset, M. Giard, R. Pons, B. Maffei, P. AdeW. Gear, P. Mauskopf, L. Piccirillo, G. Pisano, G. Savini

    Research output: Contribution to journalArticlepeer-review

    Abstract

    In the current cosmological scenario, part of the linearly polarized emission of the CMB is expected to be rotational (B-modes). This component is due to tensor perturbations of the metric produced by primordial gravitational waves, which are generated a split-second after the Big Bang. The signal expected is of the order of ≳0.1 μK, well below the non-rotational component of the polarization signal (E-modes), and beyond the sensitivity of present generation instruments. New, more sensitive instruments are developed in several labs, with the goal to measure the B-modes. Control of systematics and foregrounds will be the key to make the results of these experiments believable. In this paper we shortly outline BRAIN, a bolometric interferometer devoted to B-modes research, and its pathfinder experiment, devoted to test the Dome-C site. © EAS. EDP Sciences 2005.
    Original languageEnglish
    Pages (from-to)87-92
    Number of pages5
    JournalEAS Publications Series
    Volume14
    DOIs
    Publication statusPublished - 2005

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