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Improved Absolute Polarization Calibrator for BICEP CMB Polarimeters

Fuente: arXiv

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Main Authors:	Polish, A. R., Ade, P. A. R., Ahmed, Z., Amiri, M., Barkats, D., Thakur, R. Basu, Bischoff, C. A., Beck, D., Bock, J. J., Boenish, H., Buza, V., Cantrall, B., Cheshire IV, J. R., Connors, J., Cornelison, J., Crumrine, M., Cukierman, A. J., Denison, E., Duband, L., Echter, M., Eiben, M., Elwood, B. D., Fatigoni, S., Filippini, J. P., Fortes, A., Gao, M., Giannakopoulos, C., Goeckner-Wald, N., Goldfinger, D. C., Gratton, S., Grayson, J. A., Greathouse, A., Grimes, P. K., Hall, G., Halal, G., Halpern, M., Hand, E., Harrison, S. A., Henderson, S., Hoang, T. D., Hubmayr, J., Hui, H., Irwin, K. D., Kang, J. H., Karkare, K. S., Kefeli, S., Kovac, J. M., Kuo, C., Lasko, K., Lau, K. K., Lautzenhiser, M., Lennox, A., Liu, T., Mackey, S., Maher, N., Megerian, K. G., Minutolo, L., Moncelsi, L., Nakato, Y., Nguyen, H. T., O'Brient, R., Paine, S. N., Patel, A., Petroff, M. A., Prouve, T., Pryke, C., Reintsema, C. D., Romand, T., Salatino, M., Schillaci, A., Schmitt, B., Singari, B., Soliman, A., Germaine, T. St., Steiger, A., Steinbach, B., Sudiwala, R., Thompson, K. L., Tsai, C., Tucker, C., Turner, A. D., Verges, C., Vieregg, A. G., Wandui, A., Weber, A. C., Willmert, J., Wu, W. L. K., Yang, H., Yu, C., Zheng, L., Zhang, C., Zhang, S.
Format:	Preprint
Published:	2025
Subjects:	Instrumentation and Methods for Astrophysics
Online Access:	Acceder al recurso
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author	Polish, A. R. Ade, P. A. R. Ahmed, Z. Amiri, M. Barkats, D. Thakur, R. Basu Bischoff, C. A. Beck, D. Bock, J. J. Boenish, H. Buza, V. Cantrall, B. Cheshire IV, J. R. Connors, J. Cornelison, J. Crumrine, M. Cukierman, A. J. Denison, E. Duband, L. Echter, M. Eiben, M. Elwood, B. D. Fatigoni, S. Filippini, J. P. Fortes, A. Gao, M. Giannakopoulos, C. Goeckner-Wald, N. Goldfinger, D. C. Gratton, S. Grayson, J. A. Greathouse, A. Grimes, P. K. Hall, G. Halal, G. Halpern, M. Hand, E. Harrison, S. A. Henderson, S. Hoang, T. D. Hubmayr, J. Hui, H. Irwin, K. D. Kang, J. H. Karkare, K. S. Kefeli, S. Kovac, J. M. Kuo, C. Lasko, K. Lau, K. K. Lautzenhiser, M. Lennox, A. Liu, T. Mackey, S. Maher, N. Megerian, K. G. Minutolo, L. Moncelsi, L. Nakato, Y. Nguyen, H. T. O'Brient, R. Paine, S. N. Patel, A. Petroff, M. A. Prouve, T. Pryke, C. Reintsema, C. D. Romand, T. Salatino, M. Schillaci, A. Schmitt, B. Singari, B. Soliman, A. Germaine, T. St. Steiger, A. Steinbach, B. Sudiwala, R. Thompson, K. L. Tsai, C. Tucker, C. Turner, A. D. Verges, C. Vieregg, A. G. Wandui, A. Weber, A. C. Willmert, J. Wu, W. L. K. Yang, H. Yu, C. Zheng, L. Zhang, C. Zhang, S.
author_facet	Polish, A. R. Ade, P. A. R. Ahmed, Z. Amiri, M. Barkats, D. Thakur, R. Basu Bischoff, C. A. Beck, D. Bock, J. J. Boenish, H. Buza, V. Cantrall, B. Cheshire IV, J. R. Connors, J. Cornelison, J. Crumrine, M. Cukierman, A. J. Denison, E. Duband, L. Echter, M. Eiben, M. Elwood, B. D. Fatigoni, S. Filippini, J. P. Fortes, A. Gao, M. Giannakopoulos, C. Goeckner-Wald, N. Goldfinger, D. C. Gratton, S. Grayson, J. A. Greathouse, A. Grimes, P. K. Hall, G. Halal, G. Halpern, M. Hand, E. Harrison, S. A. Henderson, S. Hoang, T. D. Hubmayr, J. Hui, H. Irwin, K. D. Kang, J. H. Karkare, K. S. Kefeli, S. Kovac, J. M. Kuo, C. Lasko, K. Lau, K. K. Lautzenhiser, M. Lennox, A. Liu, T. Mackey, S. Maher, N. Megerian, K. G. Minutolo, L. Moncelsi, L. Nakato, Y. Nguyen, H. T. O'Brient, R. Paine, S. N. Patel, A. Petroff, M. A. Prouve, T. Pryke, C. Reintsema, C. D. Romand, T. Salatino, M. Schillaci, A. Schmitt, B. Singari, B. Soliman, A. Germaine, T. St. Steiger, A. Steinbach, B. Sudiwala, R. Thompson, K. L. Tsai, C. Tucker, C. Turner, A. D. Verges, C. Vieregg, A. G. Wandui, A. Weber, A. C. Willmert, J. Wu, W. L. K. Yang, H. Yu, C. Zheng, L. Zhang, C. Zhang, S.
contents	Cosmic birefringence is a hypothesized parity violation in electromagnetism that predicts a frequency-independent polarization rotation as light propagates. This would rotate the light from the Cosmic Microwave Background, producing an unexpected EB correlation. However, cosmic birefringence angle is degenerate with instrument polarization angle, and breaking this degeneracy requires an absolute polarization calibration. We calibrate the BICEP3 telescope (a 95GHz CMB polarimeter) by observing a rotating polarized source (RPS) with both the telescope and a small test receiver called the In-Situ Absolute Angle Calibrator (ISAAC).
format	Preprint
id	arxiv_https___arxiv_org_abs_2510_13032
institution	arXiv
publishDate	2025
record_format	arxiv
spellingShingle	Improved Absolute Polarization Calibrator for BICEP CMB Polarimeters Polish, A. R. Ade, P. A. R. Ahmed, Z. Amiri, M. Barkats, D. Thakur, R. Basu Bischoff, C. A. Beck, D. Bock, J. J. Boenish, H. Buza, V. Cantrall, B. Cheshire IV, J. R. Connors, J. Cornelison, J. Crumrine, M. Cukierman, A. J. Denison, E. Duband, L. Echter, M. Eiben, M. Elwood, B. D. Fatigoni, S. Filippini, J. P. Fortes, A. Gao, M. Giannakopoulos, C. Goeckner-Wald, N. Goldfinger, D. C. Gratton, S. Grayson, J. A. Greathouse, A. Grimes, P. K. Hall, G. Halal, G. Halpern, M. Hand, E. Harrison, S. A. Henderson, S. Hoang, T. D. Hubmayr, J. Hui, H. Irwin, K. D. Kang, J. H. Karkare, K. S. Kefeli, S. Kovac, J. M. Kuo, C. Lasko, K. Lau, K. K. Lautzenhiser, M. Lennox, A. Liu, T. Mackey, S. Maher, N. Megerian, K. G. Minutolo, L. Moncelsi, L. Nakato, Y. Nguyen, H. T. O'Brient, R. Paine, S. N. Patel, A. Petroff, M. A. Prouve, T. Pryke, C. Reintsema, C. D. Romand, T. Salatino, M. Schillaci, A. Schmitt, B. Singari, B. Soliman, A. Germaine, T. St. Steiger, A. Steinbach, B. Sudiwala, R. Thompson, K. L. Tsai, C. Tucker, C. Turner, A. D. Verges, C. Vieregg, A. G. Wandui, A. Weber, A. C. Willmert, J. Wu, W. L. K. Yang, H. Yu, C. Zheng, L. Zhang, C. Zhang, S. Instrumentation and Methods for Astrophysics Cosmic birefringence is a hypothesized parity violation in electromagnetism that predicts a frequency-independent polarization rotation as light propagates. This would rotate the light from the Cosmic Microwave Background, producing an unexpected EB correlation. However, cosmic birefringence angle is degenerate with instrument polarization angle, and breaking this degeneracy requires an absolute polarization calibration. We calibrate the BICEP3 telescope (a 95GHz CMB polarimeter) by observing a rotating polarized source (RPS) with both the telescope and a small test receiver called the In-Situ Absolute Angle Calibrator (ISAAC).
title	Improved Absolute Polarization Calibrator for BICEP CMB Polarimeters
topic	Instrumentation and Methods for Astrophysics
url	https://arxiv.org/abs/2510.13032