MG14 - Talk detail |
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Participant |
Lamagna, Luca | |||||||
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Institution |
Department of Physics, "Sapienza"- University of Rome - P.le Aldo Moro 5 - Rome - RM - Italy | |||||||
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Session |
CM1 |
Accepted |
Yes |
Order |
7 |
Time |
16:50 | 15' |
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Talk |
Oral abstract |
Title |
The Large Scale Polarization Explorer | |||||
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Abstract |
The LSPE is a balloon-borne mission aimed at measuring the polarization of the Cosmic Microwave Background (CMB) at large angular scales. Its primary target is the detection of the power spectrum of the B-modes at multipoles covering both the reionization peak and the recombination peak, with a sensitivity corresponding to r = 0.02, at 99.7% confidence. A second target is to produce wide maps of foreground polarization generated in our Galaxy by synchrotron emission and interstellar dust emission. The mission is optimized for large angular scales, with coarse angular resolution (around 1.5 degrees FWHM), and wide sky coverage (25% of the sky). The payload will fly in a circumpolar long duration balloon mission during the polar night and it will host two instruments: an array of coherent polarimeters using cryogenic HEMT amplifiers will survey the sky at 43 and 90 GHz; an array of bolometric polarimeters, using large throughput multi-mode bolometers and rotating Half Wave Plates (HWP), will survey the same sky region in three bands at 140, 220 and 240 GHz. The wide frequency coverage will allow optimal control of the polarized foregrounds, with comparable angular resolution at all frequencies. |
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Pdf file |
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