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A New Limit on CMB Circular Polarization from SPIDER
File | Description | Size | Format | |
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1704.00215v3.pdf | Accepted version | 430.54 kB | Adobe PDF | View/Open |
Nagy_2017_ApJ_844_151.pdf | Published version | 755.71 kB | Adobe PDF | View/Open |
Title: | A New Limit on CMB Circular Polarization from SPIDER |
Authors: | Nagy, JM Ade, PAR Amiri, M Benton, SJ Bergman, AS Bihary, R Bock, JJ Bond, JR Bryan, SA Chiang, HC Contaldi, CR Dore, O Duivenvoorden, AJ Eriksen, HK Farhang, M Filippini, JP Fissel, LM Fraisse, AA Freese, K Galloway, M Gambrel, AE Gandilo, NN Ganga, K Gudmundsson, JE Halpern, M Hartley, J Hasselfield, M Hilton, G Holmes, W Hristov, VV Huang, Z Irwin, KD Jones, WC Kuo, CL Kermish, ZD Li, S Mason, PV Megerian, K Moncelsi, L Morford, TA Netterfield, CB Nolta, M Padilla, IL Racine, B Rahlin, AS Reintsema, C Ruhl, JE Runyan, MC Ruud, TM Shariff, JA Soler, JD Song, X Trangsrud, A Tucker, C Tucker, RS Turner, AD Van Der List, JF Weber, AC Wehus, IK Wiebe, DV Young, EY |
Item Type: | Journal Article |
Abstract: | We present a new upper limit on cosmic microwave background (CMB) circular polarization from the 2015 flight of Spider, a balloon-borne telescope designed to search for B-mode linear polarization from cosmic inflation. Although the level of circular polarization in the CMB is predicted to be very small, experimental limits provide a valuable test of the underlying models. By exploiting the nonzero circular-to-linear polarization coupling of the half-wave plate polarization modulators, data from Spider's 2015 Antarctic flight provide a constraint on Stokes V at 95 and 150 GHz in the range $33\lt {\ell }\lt 307$. No other limits exist over this full range of angular scales, and Spider improves on the previous limit by several orders of magnitude, providing 95% C.L. constraints on ${\ell }({\ell }+1){C}_{{\ell }}^{{VV}}/(2\pi )$ ranging from 141 to 255 μK2 at 150 GHz for a thermal CMB spectrum. As linear CMB polarization experiments become increasingly sensitive, the techniques described in this paper can be applied to obtain even stronger constraints on circular polarization. |
Issue Date: | 2-Aug-2017 |
Date of Acceptance: | 28-Jun-2017 |
URI: | http://hdl.handle.net/10044/1/52031 |
DOI: | https://dx.doi.org/10.3847/1538-4357/aa7cfd |
ISSN: | 0004-637X |
Publisher: | American Astronomical Society |
Journal / Book Title: | Astrophysical Journal |
Volume: | 844 |
Issue: | 2 |
Copyright Statement: | © 2017. The American Astronomical Society. All rights reserved. |
Sponsor/Funder: | Science and Technology Facilities Council (STFC) Science and Technology Facilities Council (STFC) |
Funder's Grant Number: | ST/J000353/1 ST/L00044X/1 |
Keywords: | Science & Technology Physical Sciences Astronomy & Astrophysics cosmic background radiation HALF-WAVE PLATE MICROWAVE BACKGROUND ASTRONOMY SUBMILLIMETER INSTRUMENTS astro-ph.CO astro-ph.IM 0201 Astronomical And Space Sciences 0305 Organic Chemistry 0306 Physical Chemistry (Incl. Structural) |
Publication Status: | Published |
Article Number: | 151 |
Appears in Collections: | Physics Theoretical Physics Faculty of Natural Sciences |