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.
Original language | English (US) |
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Title of host publication | Proceedings - CIS Workshops 2007, 2007 International Conference on Computational Intelligence and Security Workshops, CISW 2007 |
Pages | 87-92 |
Number of pages | 6 |
DOIs | |
State | Published - 2005 |
Externally published | Yes |
Event | Dome C Astronomy and Astrophysics Meeting - Toulouse, France Duration: Jun 28 2004 → Jun 30 2004 |
Publication series
Name | EAS Publications Series |
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Volume | 14 |
ISSN (Print) | 1633-4760 |
ISSN (Electronic) | 1638-1963 |
Other
Other | Dome C Astronomy and Astrophysics Meeting |
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Country/Territory | France |
City | Toulouse |
Period | 6/28/04 → 6/30/04 |
ASJC Scopus subject areas
- Astronomy and Astrophysics
- Engineering(all)
- Space and Planetary Science