Detection of the Power Spectrum of Cosmic Microwave Background Lensing by the Atacama Cosmology Telescope

被引：232

作者：

Das, Sudeep ^{[1
,2
,3
]}

Sherwin, Blake D. ^{[2
]}

Aguirre, Paula ^{[4
]}

Appel, John W. ^{[2
]}

Bond, J. Richard ^{[5
]}

Sofia Carvalho, C. ^{[6
,7
]}

Devlin, Mark J. ^{[8
]}

Dunkley, Joanna ^{[2
,3
,9
]}

Duenner, Rolando ^{[4
]}

Essinger-Hileman, Thomas ^{[2
]}

Fowler, Joseph W. ^{[2
,10
]}

Hajian, Amir ^{[2
,3
,5
]}

Halpern, Mark ^{[11
]}

Hasselfield, Matthew ^{[11
]}

Hincks, Adam D. ^{[2
]}

Hlozek, Renee ^{[9
]}

Huffenberger, Kevin M. ^{[12
]}

Hughes, John P. ^{[13
]}

Irwin, Kent D. ^{[10
]}

Klein, Jeff

Kosowsky, Arthur ^{[14
]}

Lupton, Robert H. ^{[3
]}

Marriage, Tobias A. ^{[3
,15
]}

Marsden, Danica ^{[8
]}

Menanteau, Felipe ^{[13
]}

Moodley, Kavilan ^{[16
]}

Niemack, Michael D. ^{[2
,10
]}

Nolta, Michael R. ^{[5
]}

Page, Lyman A. ^{[2
]}

Parker, Lucas ^{[2
]}

Reese, Erik D. ^{[8
]}

Schmitt, Benjamin L. ^{[8
]}

Sehgal, Neelima ^{[17
]}

Sievers, Jon ^{[5
]}

Spergel, David N. ^{[3
]}

Staggs, Suzanne T. ^{[2
]}

Swetz, Daniel S. ^{[8
,10
]}

Switzer, Eric R. ^{[2
,18
]}

Thornton, Robert ^{[8
,19
]}

Visnjic, Katerina ^{[2
]}

Wollack, Ed ^{[20
]}

机构：

[1] Univ Calif Berkeley, Dept Phys, BCCP, Berkeley, CA 94720 USA

[2] Princeton Univ, Dept Phys, Princeton, NJ 08544 USA

[3] Princeton Univ, Dept Astrophys Sci, Princeton, NJ 08544 USA

[4] Pontificia Univ Catolica Chile, Dept Astron & Astrofis, Santiago 22, Chile

[5] Univ Toronto, CITA, Toronto, ON M5S 3H8, Canada

[6] IST, IPFN, P-1049001 Lisbon, Portugal

[7] Acad Athens, Res Ctr Astron, Athens 11527, Greece

[8] Univ Penn, Dept Phys & Astron, Philadelphia, PA 19104 USA

[9] Univ Oxford, Dept Astrophys, Oxford OX1 3RH, England

[10] NIST, Quantum Devices Grp, Boulder, CO 80305 USA

[11] Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T 1Z4, Canada

[12] Univ Miami, Dept Phys, Coral Gables, FL 33124 USA

[13] Rutgers State Univ, Dept Phys & Astron, Piscataway, NJ 08854 USA

[14] Univ Pittsburgh, Dept Phys & Astron, Pittsburgh, PA 15260 USA

[15] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA

[16] Univ KwaZulu Natal, Astrophys & Cosmol Res Unit, ZA-4041 Durban, South Africa

[17] Stanford Univ, KIPAC, Stanford, CA 94305 USA

[18] Kavli Inst Cosmol Phys, Chicago, IL 60637 USA

[19] W Chester Univ Penn, Dept Phys, W Chester, PA 19383 USA

[20] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA

来源：

PHYSICAL REVIEW LETTERS | 2011年 / 107卷 / 01期

基金：

美国国家科学基金会; 加拿大自然科学与工程研究理事会;

关键词：

PROBE WMAP OBSERVATIONS; RECONSTRUCTION; TEMPERATURE;

D O I：

10.1103/PhysRevLett.107.021301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the first detection of the gravitational lensing of the cosmic microwave background through a measurement of the four-point correlation function in the temperature maps made by the Atacama Cosmology Telescope. We verify our detection by calculating the levels of potential contaminants and performing a number of null tests. The resulting convergence power spectrum at 2 degrees angular scales measures the amplitude of matter density fluctuations on comoving length scales of around 100 Mpc at redshifts around 0.5 to 3. The measured amplitude of the signal agrees with Lambda cold dark matter cosmology predictions. Since the amplitude of the convergence power spectrum scales as the square of the amplitude of the density fluctuations, the 4 sigma detection of the lensing signal measures the amplitude of density fluctuations to 12%.

引用

页数：5

共 40 条

[1] SEVEN-YEAR WILKINSON MICROWAVE ANISOTROPY PROBE (WMAP) OBSERVATIONS: ARE THERE COSMIC MICROWAVE BACKGROUND ANOMALIES? [J].

Bennett, C. L. ;

Hill, R. S. ;

Hinshaw, G. ;

Larson, D. ;

Smith, K. M. ;

Dunkley, J. ;

Gold, B. ;

Halpern, M. ;

Jarosik, N. ;

Kogut, A. ;

Komatsu, E. ;

Limon, M. ;

Meyer, S. S. ;

Nolta, M. R. ;

Odegard, N. ;

Page, L. ;

Spergel, D. N. ;

Tucker, G. S. ;

Weiland, J. L. ;

Wollack, E. ;

Wright, E. L. .

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2011, 192 (02)

[2]

Bernardeau F, 1997, ASTRON ASTROPHYS, V324, P15

[3] IMPROVED MEASUREMENTS OF THE TEMPERATURE AND POLARIZATION OF THE COSMIC MICROWAVE BACKGROUND FROM QUaD [J].

Brown, M. L. ;

Ade, P. ;

Bock, J. ;

Bowden, M. ;

Cahill, G. ;

Castro, P. G. ;

Church, S. ;

Culverhouse, T. ;

Friedman, R. B. ;

Ganga, K. ;

Gear, W. K. ;

Gupta, S. ;

Hinderks, J. ;

Kovac, J. ;

Lange, A. E. ;

Leitch, E. ;

Melhuish, S. J. ;

Memari, Y. ;

Murphy, J. A. ;

Orlando, A. ;

Sullivan, C. O' ;

Piccirillo, L. ;

Pryke, C. ;

Rajguru, N. ;

Rusholme, B. ;

Schwarz, R. ;

Taylor, A. N. ;

Thompson, K. L. ;

Turner, A. H. ;

Wu, E. Y. S. ;

Zemcov, M. .

ASTROPHYSICAL JOURNAL, 2009, 705 (01) :978-999

[4] GRAVITATIONAL LENSING OF FLUCTUATIONS IN THE MICROWAVE BACKGROUND-RADIATION [J].

COLE, S ;

EFSTATHIOU, G .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1989, 239 (01) :195-200

[5] THE ATACAMA COSMOLOGY TELESCOPE: A MEASUREMENT OF THE COSMIC MICROWAVE BACKGROUND POWER SPECTRUM AT 148 AND 218 GHz FROM THE 2008 SOUTHERN SURVEY [J].

Das, Sudeep ;

Marriage, Tobias A. ;

Ade, Peter A. R. ;

Aguirre, Paula ;

Amiri, Mandana ;

Appel, John W. ;

Barrientos, L. Felipe ;

Battistelli, Elia S. ;

Bond, John R. ;

Brown, Ben ;

Burger, Bryce ;

Chervenak, Jay ;

Devlin, Mark J. ;

Dicker, Simon R. ;

Doriese, W. Bertrand ;

Dunkley, Joanna ;

Duenner, Rolando ;

Essinger-Hileman, Thomas ;

Fisher, Ryan P. ;

Fowler, Joseph W. ;

Hajian, Amir ;

Halpern, Mark ;

Hasselfield, Matthew ;

Hernandez-Monteagudo, Carlos ;

Hilton, Gene C. ;

Hilton, Matt ;

Hincks, Adam D. ;

Hlozek, Renee ;

Huffenberger, Kevin M. ;

Hughes, David H. ;

Hughes, John P. ;

Infante, Leopoldo ;

Irwin, Kent D. ;

Juin, Jean Baptiste ;

Kaul, Madhuri ;

Klein, Jeff ;

Kosowsky, Arthur ;

Lau, Judy M. ;

Limon, Michele ;

Lin, Yen-Ting ;

Lupton, Robert H. ;

Marsden, Danica ;

Martocci, Krista ;

Mauskopf, Phil ;

Menanteau, Felipe ;

Moodley, Kavilan ;

Moseley, Harvey ;

Netterfield, Calvin B. ;

Niemack, Michael D. ;

Nolta, Michael R. .

ASTROPHYSICAL JOURNAL, 2011, 729 (01)

[6]

DUNKLEY J, ARXIV10090866

[7] Reconstructing patchy reionization from the cosmic microwave background [J].

Dvorkin, Cora ;

Smith, Kendrick M. .

PHYSICAL REVIEW D, 2009, 79 (04)

[8] THE ATACAMA COSMOLOGY TELESCOPE: A MEASUREMENT OF THE 600 < l < 8000 COSMIC MICROWAVE BACKGROUND POWER SPECTRUM AT 148 GHz [J].

Fowler, J. W. ;

Acquaviva, V. ;

Ade, P. A. R. ;

Aguirre, P. ;

Amiri, M. ;

Appel, J. W. ;

Barrientos, L. F. ;

Battistelli, E. S. ;

Bond, J. R. ;

Brown, B. ;

Burger, B. ;

Chervenak, J. ;

Das, S. ;

Devlin, M. J. ;

Dicker, S. R. ;

Doriese, W. B. ;

Dunkley, J. ;

Duenner, R. ;

Essinger-Hileman, T. ;

Fisher, R. P. ;

Hajian, A. ;

Halpern, M. ;

Hasselfield, M. ;

Hernandez-Monteagudo, C. ;

Hilton, G. C. ;

Hilton, M. ;

Hincks, A. D. ;

Hlozek, R. ;

Huffenberger, K. M. ;

Hughes, D. H. ;

Hughes, J. P. ;

Infante, L. ;

Irwin, K. D. ;

Jimenez, R. ;

Juin, J. B. ;

Kaul, M. ;

Klein, J. ;

Kosowsky, A. ;

Lau, J. M. ;

Limon, M. ;

Lin, Y. -T. ;

Lupton, R. H. ;

Marriage, T. A. ;

Marsden, D. ;

Martocci, K. ;

Mauskopf, P. ;

Menanteau, F. ;

Moodley, K. ;

Moseley, H. ;

Netterfield, C. B. .

ASTROPHYSICAL JOURNAL, 2010, 722 (02) :1148-1161

[9] SMALL ANGULAR SCALE MEASUREMENTS OF THE COSMIC MICROWAVE BACKGROUND TEMPERATURE POWER SPECTRUM FROM QUaD [J].