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Title: A New Limit on CMB Circular Polarization from SPIDER

We present a new upper limit on 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 non-zero circular-to-linear polarization coupling of the HWP polarization modulators, data from SPIDER's 2015 Antarctic flight provides a constraint on Stokes $V$ at 95 and 150 GHz from $$33<\ell<307$$. No other limits exist over this full range of angular scales, and SPIDER improves upon 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 $$\mu K ^2$$ to 203 $$\mu K ^2$$ 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 stronger constraints on circular polarization.
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Publication Date:
Report Number(s):
FERMILAB-PUB-17-135-AE; arXiv:1704.00215
Journal ID: ISSN 1538-4357; 1589235
Grant/Contract Number:
AC02-07CH11359; AC02-76SF00515
Type:
Accepted Manuscript
Journal Name:
The Astrophysical Journal (Online)
Additional Journal Information:
Journal Name: The Astrophysical Journal (Online); Journal Volume: 844; Journal Issue: 2; Journal ID: ISSN 1538-4357
Publisher:
Institute of Physics (IOP)
Research Org:
SLAC National Accelerator Lab., Menlo Park, CA (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Contributing Orgs:
SPIDER
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; cosmic background radiation
OSTI Identifier:
1390288
Alternate Identifier(s):
OSTI ID: 1362139

Nagy, J. M., Ade, P. A. R., Amiri, M., Benton, S. J., Bergman, A. S., Bihary, R., Bock, J. J., Bond, J. R., Bryan, S. A., Chiang, H. C., Contaldi, C. R., Doré, O., Duivenvoorden, A. J., Eriksen, H. K., Farhang, M., Filippini, J. P., Fissel, L. M., Fraisse, A. A., Freese, K., Galloway, M., Gambrel, A. E., Gandilo, N. N., Ganga, K., Gudmundsson, J. E., Halpern, M., Hartley, J., Hasselfield, M., Hilton, G., Holmes, W., Hristov, V. V., Huang, Z., Irwin, K. D., Jones, W. C., Kuo, C. L., Kermish, Z. D., Li, S., Mason, P. V., Megerian, K., Moncelsi, L., Morford, T. A., Netterfield, C. B., Nolta, M., Padilla, I. L., Racine, B., Rahlin, A. S., Reintsema, C., Ruhl, J. E., Runyan, M. C., Ruud, T. M., Shariff, J. A., Soler, J. D., Song, X., Trangsrud, A., Tucker, C., Tucker, R. S., Turner, A. D., List, J. F. Van Der, Weber, A. C., Wehus, I. K., Wiebe, D. V., and Young, E. Y.. A New Limit on CMB Circular Polarization from SPIDER. United States: N. p., Web. doi:10.3847/1538-4357/aa7cfd.
Nagy, J. M., Ade, P. A. R., Amiri, M., Benton, S. J., Bergman, A. S., Bihary, R., Bock, J. J., Bond, J. R., Bryan, S. A., Chiang, H. C., Contaldi, C. R., Doré, O., Duivenvoorden, A. J., Eriksen, H. K., Farhang, M., Filippini, J. P., Fissel, L. M., Fraisse, A. A., Freese, K., Galloway, M., Gambrel, A. E., Gandilo, N. N., Ganga, K., Gudmundsson, J. E., Halpern, M., Hartley, J., Hasselfield, M., Hilton, G., Holmes, W., Hristov, V. V., Huang, Z., Irwin, K. D., Jones, W. C., Kuo, C. L., Kermish, Z. D., Li, S., Mason, P. V., Megerian, K., Moncelsi, L., Morford, T. A., Netterfield, C. B., Nolta, M., Padilla, I. L., Racine, B., Rahlin, A. S., Reintsema, C., Ruhl, J. E., Runyan, M. C., Ruud, T. M., Shariff, J. A., Soler, J. D., Song, X., Trangsrud, A., Tucker, C., Tucker, R. S., Turner, A. D., List, J. F. Van Der, Weber, A. C., Wehus, I. K., Wiebe, D. V., & Young, E. Y.. A New Limit on CMB Circular Polarization from SPIDER. United States. doi:10.3847/1538-4357/aa7cfd.
Nagy, J. M., Ade, P. A. R., Amiri, M., Benton, S. J., Bergman, A. S., Bihary, R., Bock, J. J., Bond, J. R., Bryan, S. A., Chiang, H. C., Contaldi, C. R., Doré, O., Duivenvoorden, A. J., Eriksen, H. K., Farhang, M., Filippini, J. P., Fissel, L. M., Fraisse, A. A., Freese, K., Galloway, M., Gambrel, A. E., Gandilo, N. N., Ganga, K., Gudmundsson, J. E., Halpern, M., Hartley, J., Hasselfield, M., Hilton, G., Holmes, W., Hristov, V. V., Huang, Z., Irwin, K. D., Jones, W. C., Kuo, C. L., Kermish, Z. D., Li, S., Mason, P. V., Megerian, K., Moncelsi, L., Morford, T. A., Netterfield, C. B., Nolta, M., Padilla, I. L., Racine, B., Rahlin, A. S., Reintsema, C., Ruhl, J. E., Runyan, M. C., Ruud, T. M., Shariff, J. A., Soler, J. D., Song, X., Trangsrud, A., Tucker, C., Tucker, R. S., Turner, A. D., List, J. F. Van Der, Weber, A. C., Wehus, I. K., Wiebe, D. V., and Young, E. Y.. 2017. "A New Limit on CMB Circular Polarization from SPIDER". United States. doi:10.3847/1538-4357/aa7cfd. https://www.osti.gov/servlets/purl/1390288.
@article{osti_1390288,
title = {A New Limit on CMB Circular Polarization from SPIDER},
author = {Nagy, J. M. and Ade, P. A. R. and Amiri, M. and Benton, S. J. and Bergman, A. S. and Bihary, R. and Bock, J. J. and Bond, J. R. and Bryan, S. A. and Chiang, H. C. and Contaldi, C. R. and Doré, O. and Duivenvoorden, A. J. and Eriksen, H. K. and Farhang, M. and Filippini, J. P. and Fissel, L. M. and Fraisse, A. A. and Freese, K. and Galloway, M. and Gambrel, A. E. and Gandilo, N. N. and Ganga, K. and Gudmundsson, J. E. and Halpern, M. and Hartley, J. and Hasselfield, M. and Hilton, G. and Holmes, W. and Hristov, V. V. and Huang, Z. and Irwin, K. D. and Jones, W. C. and Kuo, C. L. and Kermish, Z. D. and Li, S. and Mason, P. V. and Megerian, K. and Moncelsi, L. and Morford, T. A. and Netterfield, C. B. and Nolta, M. and Padilla, I. L. and Racine, B. and Rahlin, A. S. and Reintsema, C. and Ruhl, J. E. and Runyan, M. C. and Ruud, T. M. and Shariff, J. A. and Soler, J. D. and Song, X. and Trangsrud, A. and Tucker, C. and Tucker, R. S. and Turner, A. D. and List, J. F. Van Der and Weber, A. C. and Wehus, I. K. and Wiebe, D. V. and Young, E. Y.},
abstractNote = {We present a new upper limit on 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 non-zero circular-to-linear polarization coupling of the HWP polarization modulators, data from SPIDER's 2015 Antarctic flight provides a constraint on Stokes $V$ at 95 and 150 GHz from $33<\ell<307$. No other limits exist over this full range of angular scales, and SPIDER improves upon 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 $\mu K ^2$ to 203 $\mu K ^2$ 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 stronger constraints on circular polarization.},
doi = {10.3847/1538-4357/aa7cfd},
journal = {The Astrophysical Journal (Online)},
number = 2,
volume = 844,
place = {United States},
year = {2017},
month = {8}
}