Journal article
Angular power spectra of the millimeter-wavelength background light from dusty star-forming galaxies with the South Pole Telescope
NR Hall, R Keisler, L Knox, CL Reichardt, PAR Ade, KA Aird, BA Benson, LE Bleem, JE Carlstrom, CL Chang, HM Cho, TM Crawford, AT Crites, T De Haan, MA Dobbs, EM George, NW Halverson, GP Holder, WL Holzapfel, JD Hrubes Show all
Astrophysical Journal | Published : 2010
Abstract
We use data from the first 100 deg2 field observed by the South Pole Telescope (SPT) in 2008 to measure the angular power spectrum of temperature anisotropies contributed by the background of dusty star-forming galaxies (DSFGs) at millimeter wavelengths. From the auto- and cross-correlation of 150 and 220 GHz SPT maps, we significantly detect both Poisson distributed and, for the first time at millimeter wavelengths, clustered components of power from a background of DSFGs. The spectral indices of the Poisson and clustered components are found to be .α150-220-P = 3.86 ± 0.23 and α 150-220 C = 3.8 ± 1.3, implying a steep scaling of the dust emissivity index β ∼ 2. The Poisson and clustered po..
View full abstractGrants
Awarded by National Science Foundation
Funding Acknowledgements
[ "We thank Marco Viero and Guilaine Lagache for comparison of calculations as well as Andrew Blain, Douglas Scott, Rashid Sunyaev, Simon White, and George Efstathiou for useful conversations. The SPT team gratefully acknowledges the contributions to the design and construction of the telescope by S. Busetti, E. Chauvin, T. Hughes, P. Huntley, and E. Nichols and his team of ironworkers. We also thank the National Science Foundation (NSF) Office of Polar Programs, the United States Antarctic Program, and the Raytheon Polar Services Company for their support of the project. We are grateful for professional support from the staff of the South Pole station. We thank T. Lanting, J. Leong, A. Loehr, W. Lu, M. Runyan, D. Schwan, M. Sharp, and C. Greer for their early contributions to the SPT project, and J. Joseph and C. Vu for their contributions to the electronics.", "The South Pole Telescope is supported by the National Science Foundation through grants ANT-0638937 and ANT-0130612. Partial support is also provided by the NSF Physics Frontier Center grant PHY-0114422 to the Kavli Institute of Cosmological Physics at the University of Chicago, the Kavli Foundation, and the Gordon and Betty Moore Foundation. This research used resources of the National Energy Research Scientific Computing Center, which is supported by the Office of Science of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. The McGill group acknowledges funding from the National Sciences and Engineering Research Council of Canada, the Quebec Fonds de recherche sur la nature et les technologies, and the Canadian Institute for Advanced Research. The following individuals acknowledge additional support: J.J.M. from a Fermi Fellowship, Z.S. from a GAAN Fellowship, A.T.L. from the Miller Institute for Basic Research in Science, University of California Berkeley, N.W.H. from an Alfred P. Sloan Research Fellowship, and K.S., B.A.B., and E.R.S. from KICP Fellowships." ]