Detection of the power spectrum of cosmic microwave background lensing by the atacama cosmology telescope

Sudeep Das; Blake D. Sherwin; Paula Aguirre; John W. Appel; J. Richard Bond; C. Sofia Carvalho; Mark J. Devlin; Joanna Dunkley; Rolando Dünner; Thomas Essinger-Hileman; Joseph W. Fowler; Amir Hajian; Mark Halpern; Matthew Hasselfield; Adam D. Hincks; Renée Hlozek; Kevin M. Huffenberger; John P. Hughes; Kent D. Irwin; Jeff Klein; Arthur Kosowsky; Robert H. Lupton; Tobias A. Marriage; Danica Marsden; Felipe Menanteau; Kavilan Moodley; Michael D. Niemack; Michael R. Nolta; Lyman A. Page; Lucas Parker; Erik D. Reese; Benjamin L. Schmitt; Neelima Sehgal; Jon Sievers; David N. Spergel; Suzanne T. Staggs; Daniel S. Swetz; Eric R. Switzer; Robert Thornton; Katerina Visnjic; Ed Wollack

doi:10.1103/PhysRevLett.107.021301

Detection of the power spectrum of cosmic microwave background lensing by the atacama cosmology telescope

Sudeep Das, Blake D. Sherwin, Paula Aguirre, John W. Appel, J. Richard Bond, C. Sofia Carvalho, Mark J. Devlin, Joanna Dunkley, Rolando Dünner, Thomas Essinger-Hileman, Joseph W. Fowler, Amir Hajian, Mark Halpern, Matthew Hasselfield, Adam D. Hincks, Renée Hlozek, Kevin M. Huffenberger, John P. Hughes, Kent D. Irwin, Jeff KleinArthur Kosowsky, Robert H. Lupton, Tobias A. Marriage, Danica Marsden, Felipe Menanteau, Kavilan Moodley, Michael D. Niemack, Michael R. Nolta, Lyman A. Page, Lucas Parker, Erik D. Reese, Benjamin L. Schmitt, Neelima Sehgal, Jon Sievers, David N. Spergel, Suzanne T. Staggs, Daniel S. Swetz, Eric R. Switzer, Robert Thornton, Katerina Visnjic, Ed Wollack

Astronomy & Astrophysics

Research output: Contribution to journal › Article › peer-review

243 Scopus citations

Abstract

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° angular scales measures the amplitude of matter density fluctuations on comoving length scales of around 100Mpc 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 4σ detection of the lensing signal measures the amplitude of density fluctuations to 12%.

Original language	English (US)
Article number	021301
Journal	Physical review letters
Volume	107
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevLett.107.021301
State	Published - Jul 5 2011

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

Access to Document

10.1103/PhysRevLett.107.021301

Cite this

Das, S., Sherwin, B. D., Aguirre, P., Appel, J. W., Bond, J. R., Carvalho, C. S., Devlin, M. J., Dunkley, J., Dünner, R., Essinger-Hileman, T., Fowler, J. W., Hajian, A., Halpern, M., Hasselfield, M., Hincks, A. D., Hlozek, R., Huffenberger, K. M., Hughes, J. P., Irwin, K. D., ... Wollack, E. (2011). Detection of the power spectrum of cosmic microwave background lensing by the atacama cosmology telescope. Physical review letters, 107(2), Article 021301. https://doi.org/10.1103/PhysRevLett.107.021301

@article{702c3184c933405290c3eb62cd39b66e,

title = "Detection of the power spectrum of cosmic microwave background lensing by the atacama cosmology telescope",

abstract = "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° angular scales measures the amplitude of matter density fluctuations on comoving length scales of around 100Mpc 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 4σ detection of the lensing signal measures the amplitude of density fluctuations to 12%.",

author = "Sudeep Das and Sherwin, {Blake D.} and Paula Aguirre and Appel, {John W.} and Bond, {J. Richard} and Carvalho, {C. Sofia} and Devlin, {Mark J.} and Joanna Dunkley and Rolando D{\"u}nner and Thomas Essinger-Hileman and Fowler, {Joseph W.} and Amir Hajian and Mark Halpern and Matthew Hasselfield and Hincks, {Adam D.} and Ren{\'e}e Hlozek and Huffenberger, {Kevin M.} and Hughes, {John P.} and Irwin, {Kent D.} and Jeff Klein and Arthur Kosowsky and Lupton, {Robert H.} and Marriage, {Tobias A.} and Danica Marsden and Felipe Menanteau and Kavilan Moodley and Niemack, {Michael D.} and Nolta, {Michael R.} and Page, {Lyman A.} and Lucas Parker and Reese, {Erik D.} and Schmitt, {Benjamin L.} and Neelima Sehgal and Jon Sievers and Spergel, {David N.} and Staggs, {Suzanne T.} and Swetz, {Daniel S.} and Switzer, {Eric R.} and Robert Thornton and Katerina Visnjic and Ed Wollack",

year = "2011",

month = jul,

day = "5",

doi = "10.1103/PhysRevLett.107.021301",

language = "English (US)",

volume = "107",

journal = "Physical review letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "2",

}

Das, S, Sherwin, BD, Aguirre, P, Appel, JW, Bond, JR, Carvalho, CS, Devlin, MJ, Dunkley, J, Dünner, R, Essinger-Hileman, T, Fowler, JW, Hajian, A, Halpern, M, Hasselfield, M, Hincks, AD, Hlozek, R, Huffenberger, KM, Hughes, JP, Irwin, KD, Klein, J, Kosowsky, A, Lupton, RH, Marriage, TA, Marsden, D, Menanteau, F, Moodley, K, Niemack, MD, Nolta, MR, Page, LA, Parker, L, Reese, ED, Schmitt, BL, Sehgal, N, Sievers, J, Spergel, DN, Staggs, ST, Swetz, DS, Switzer, ER, Thornton, R, Visnjic, K & Wollack, E 2011, 'Detection of the power spectrum of cosmic microwave background lensing by the atacama cosmology telescope', Physical review letters, vol. 107, no. 2, 021301. https://doi.org/10.1103/PhysRevLett.107.021301

TY - JOUR

T1 - Detection of the power spectrum of cosmic microwave background lensing by the atacama cosmology telescope

AU - Das, Sudeep

AU - Sherwin, Blake D.

AU - Aguirre, Paula

AU - Appel, John W.

AU - Bond, J. Richard

AU - Carvalho, C. Sofia

AU - Devlin, Mark J.

AU - Dunkley, Joanna

AU - Dünner, Rolando

AU - Essinger-Hileman, Thomas

AU - Fowler, Joseph W.

AU - Hajian, Amir

AU - Halpern, Mark

AU - Hasselfield, Matthew

AU - Hincks, Adam D.

AU - Hlozek, Renée

AU - Huffenberger, Kevin M.

AU - Hughes, John P.

AU - Irwin, Kent D.

AU - Klein, Jeff

AU - Kosowsky, Arthur

AU - Lupton, Robert H.

AU - Marriage, Tobias A.

AU - Marsden, Danica

AU - Menanteau, Felipe

AU - Moodley, Kavilan

AU - Niemack, Michael D.

AU - Nolta, Michael R.

AU - Page, Lyman A.

AU - Parker, Lucas

AU - Reese, Erik D.

AU - Schmitt, Benjamin L.

AU - Sehgal, Neelima

AU - Sievers, Jon

AU - Spergel, David N.

AU - Staggs, Suzanne T.

AU - Swetz, Daniel S.

AU - Switzer, Eric R.

AU - Thornton, Robert

AU - Visnjic, Katerina

AU - Wollack, Ed

PY - 2011/7/5

Y1 - 2011/7/5

N2 - 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° angular scales measures the amplitude of matter density fluctuations on comoving length scales of around 100Mpc 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 4σ detection of the lensing signal measures the amplitude of density fluctuations to 12%.

AB - 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° angular scales measures the amplitude of matter density fluctuations on comoving length scales of around 100Mpc 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 4σ detection of the lensing signal measures the amplitude of density fluctuations to 12%.

UR - http://www.scopus.com/inward/record.url?scp=79961089146&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79961089146&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.107.021301

DO - 10.1103/PhysRevLett.107.021301

M3 - Article

C2 - 21797590

AN - SCOPUS:79961089146

SN - 0031-9007

VL - 107

JO - Physical review letters

JF - Physical review letters

IS - 2

M1 - 021301

ER -

Detection of the power spectrum of cosmic microwave background lensing by the atacama cosmology telescope

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this