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EBEX: The E and B Experiment

By JOY DIDIER, ASAD M. ABOOBAKER, Peter Ade, Francois Aubin, Carlo Baccigalupi, KEVIN BANDURA, CHAOYUN BAO, Julian Borrill, BIKRAMJIT CHANDRA, DANIEL CHAPMAN, Matt Dobbs, Julien Grain, WILL GRAINGER, Shaul Hanany, KYLE HELSON, SETH HILLBRAND, GENE HILTON, HANNES HUBMAYR, Kent Irwin, Bradley Johnson, Andrew Jaffe, TERRY JONES, TED KISNER, Jeff Klein, ANDREI KOROTKOV, Adrian Lee, LORNE LEVINSON, Michele Limon, KEVIN MACDERMID, Amber Miller, Michael Milligan, Enzo Pascale, Giuseppe Puglisi, KATE RAACH, BRITT REICHBORN-KJENNERUD, CARL REINTSEMA, Ilan Sagiv, GRAEME SMECHER, RADEK STOMPOR, Matthieu Tristram, GREG TUCKER, BEN WESTBROOK and KYLE ZILIC

Abstract

International audienceThe E and B experiment (EBEX) is a balloon-borne telescope designed to measure the polar-ization of the cosmic microwave background radiation as well as that from Galactic dust. Theinstrument is equipped with a 1.5 meter aperture Gregorian-Dragone telescope, providing an8' beam at three frequency bands centered on 150, 250 and 410 GHz. Polarimetry is achievedby rotating an achromatic half-wave plate on a superconducting magnetic bearing. In January2013, EBEX completed 11 days of observations in a ight over Antarctica covering 6000 squaredegrees of the sky. This marks the rst time that arrays with about 1000 transition-edge sensorbolometers have made science observations on a balloon-borne platform. These proceedingsdescribe the EBEX instrument, the science ight and the status of the data analysis.1

Topics: [ PHYS.ASTR.CO ] Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], [ SDU.ASTR.CO ] Sciences of the Universe [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO]
Publisher: ARISF
Year: 2014
OAI identifier: oai:HAL:in2p3-01118723v1
Provided by: Hal-Diderot
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