ACTPol: a polarization-sensitive receiver for the Atacama Cosmology Telescope

Niemack, M. D., Ade, Peter A. R. ORCID: https://orcid.org/0000-0002-5127-0401, Aguirre, J., Barrientos, F., Beall, J. A., Bond, J. R., Britton, J., Cho, H. M., Das, S., Devlin, M. J., Dicker, S., Dunkley, J., Dünner, R., Fowler, J. W., Hajian, A., Halpern, M., Hasselfield, M., Hilton, G. C., Hilton, M., Hubmayr, J., Hughes, J. P., Infante, L., Irwin, K. D., Jarosik, N., Klein, J., Kosowsky, A., Marriage, T. A., McMahon, J., Menanteau, F., Moodley, K., Nibarger, J. P., Nolta, M. R., Page, L. A., Partridge, B., Reese, E. D., Sievers, J., Spergel, D. N., Staggs, S. T., Thornton, R., Tucker, Carole Elizabeth ORCID: https://orcid.org/0000-0002-1851-3918, Wollack, E. and Yoon, K. W. 2010. ACTPol: a polarization-sensitive receiver for the Atacama Cosmology Telescope. Presented at: Millimeter, submillimeter, and far-infrared detectors and instrumentation for astronomy V, San Diego, CA, USA, 29 June-2 July 2010. Proceedings of the SPIE conference on Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy V held in San Diego CA 29 June 2010. Proceedings of SPIE (7741) Bellingham, WA: SPIE, 77411S. 10.1117/12.857464

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Abstract

The six-meter Atacama Cosmology Telescope (ACT) in Chile was built to measure the cosmic microwave background (CMB) at arcminute angular scales. We are building a new polarization sensitive receiver for ACT (ACTPol). ACTPol will characterize the gravitational lensing of the CMB and aims to constrain the sum of the neutrino masses with ~ 0.05 eV precision, the running of the spectral index of inflation-induced fluctuations, and the primordial helium abundance to better than 1 %. Our observing fields will overlap with the SDSS BOSS survey at optical wavelengths, enabling a variety of cross-correlation science, including studies of the growth of cosmic structure from Sunyaev-Zel'dovich observations of clusters of galaxies as well as independent constraints on the sum of the neutrino masses. We describe the science objectives and the initial receiver design.

Item Type:	Conference or Workshop Item (Paper)
Date Type:	Publication
Status:	Published
Schools:	Schools > Physics and Astronomy
Subjects:	Q Science > QB Astronomy
Uncontrolled Keywords:	Galaxy groups and clusters; Helium; Polarization; Receivers; Telescopes
Publisher:	SPIE
ISBN:	9780819482310
ISSN:	0277-786X
Last Modified:	20 Oct 2022 09:47
URI:	https://orca.cardiff.ac.uk/id/eprint/33127

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