ANGULAR POWER SPECTRA OF THE MILLIMETER-WAVELENGTH BACKGROUND LIGHT FROM DUSTY STAR-FORMING GALAXIES WITH THE SOUTH POLE TELESCOPE

被引：123

作者：

Hall, N. R. ^{[1
]}

Keisler, R. ^{[2
,3
]}

Knox, L. ^{[1
]}

Reichardt, C. L.

Ade, P. A. R. ^{[4
]}

Aird, K. A.

Benson, B. A. ^{[2
,5
]}

Bleem, L. E. ^{[2
,3
]}

Carlstrom, J. E. ^{[2
,3
,5
,6
]}

Chang, C. L. ^{[2
,5
]}

Cho, H. -M.

Crawford, T. M. ^{[2
,6
]}

Crites, A. T. ^{[2
,6
]}

De Haan, T. ^{[7
]}

Dobbs, M. A. ^{[7
]}

George, E. M.

Halverson, N. W. ^{[8
,9
]}

Holder, G. P. ^{[7
]}

Holzapfel, W. L.

Hrubes, J. D.

Joy, M. ^{[10
]}

Lee, A. T. ^{[11
]}

Leitch, E. M. ^{[2
,6
]}

Lueker, M.

McMahon, J. J. ^{[2
,5
]}

Mehl, J.

Meyer, S. S. ^{[2
,3
,5
,6
]}

Mohr, J. J. ^{[12
,13
,14
]}

Montroy, T. E. ^{[15
]}

Padin, S. ^{[2
,6
]}

Plagge, T.

Pryke, C. ^{[2
,5
,6
]}

Ruhl, J. E. ^{[15
]}

Schaffer, K. K. ^{[2
,5
]}

Shaw, L. ^{[7
]}

Shirokoff, E.

Spieler, H. G. ^{[11
]}

Stalder, B. ^{[16
]}

Staniszewski, Z. ^{[15
]}

Stark, A. A. ^{[16
]}

Switzer, E. R. ^{[2
,5
]}

Vanderlinde, K. ^{[7
]}

Vieira, J. D. ^{[2
,3
]}

Williamson, R. ^{[2
,6
]}

Zahn, O. ^{[17
]}

机构：

[1] Univ Calif Davis, Dept Phys, Davis, CA 95616 USA

[2] Univ Chicago, Kavli Inst Cosmol Phys, Chicago, IL 60637 USA

[3] Univ Chicago, Dept Phys, Chicago, IL 60637 USA

[4] Cardiff Univ, Dept Phys & Astron, Cardiff CF24 3YB, S Glam, Wales

[5] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA

[6] Univ Chicago, Dept Astron & Astrophys, Chicago, IL 60637 USA

[7] McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada

[8] Univ Colorado, Dept Astrophys & Planetary Sci, Boulder, CO 80309 USA

[9] Univ Colorado, Dept Phys, Boulder, CO 80309 USA

[10] NASA, Marshall Space Flight Ctr, Dept Space Sci, Huntsville, AL 35812 USA

[11] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Phys, Berkeley, CA 94720 USA

[12] Univ Munich, Dept Phys, D-81679 Munich, Germany

[13] Excellence Cluster Univ, D-85748 Garching, Germany

[14] Max Planck Inst Extraterr Phys, D-85748 Garching, Germany

[15] Case Western Reserve Univ, Dept Phys, Ctr Educ & Res Cosmol & Astrophys, Cleveland, OH 44106 USA

[16] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA

[17] Univ Calif Berkeley, Dept Phys, Berkeley Ctr Cosmol Phys, Berkeley, CA 94720 USA

来源：

ASTROPHYSICAL JOURNAL | 2010年 / 718卷 / 02期

基金：

美国国家科学基金会;

关键词：

cosmic background radiation; galaxies: abundances; large-scale structure of universe; submillimeter: diffuse background; submillimeter: galaxies; MULTIBAND IMAGING PHOTOMETER; SOURCE COUNTS; ENERGY-DISTRIBUTIONS; RADIO-SOURCES; SUBMILLIMETER; SPITZER; ANISOTROPIES; EMISSION; UNIVERSE; TEMPERATURE;

D O I：

10.1088/0004-637X/718/2/632

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We use data from the first 100 deg(2) 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 (alpha) over bar alpha(P)(150-220) = 3.86 +/- 0.23 and alpha(C)(150-220) = 3.8 +/- 1.3, implying a steep scaling of the dust emissivity index beta similar to 2. The Poisson and clustered power detected in SPT, BLAST (at 600, 860, and 1200 GHz), and Spitzer (1900 GHz) data can be understood in the context of a simple model in which all galaxies have the same graybody spectrum with dust emissivity index of beta = 2 and dust temperature T-d = 34 K. In this model, half of the 150 GHz background light comes from redshifts greater than 3.2. We also use the SPT data to place an upper limit on the amplitude of the kinetic Sunyaev-Zel'dovich power spectrum at l = 3000 of 13 mu K-2 at 95% confidence.

引用

页码：632 / 646

页数：15

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