Evidence for dark energy from the cosmic microwave background alone using the atacama cosmology telescope lensing measurements

Blake D. Sherwin; Joanna Dunkley; Sudeep Das; John W. Appel; J. Richard Bond; C. Sofia Carvalho; Mark J. Devlin; Rolando Dünner; Thomas Essinger-Hileman; Joseph W. Fowler; Amir Hajian; Mark Halpern; Matthew Hasselfield; Adam D. Hincks; Renée Hlozek; John P. Hughes; Kent D. Irwin; Jeff Klein; Arthur Kosowsky; Tobias A. Marriage; Danica Marsden; Kavilan Moodley; Felipe Menanteau; 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.107.021302

Evidence for dark energy from the cosmic microwave background alone using the atacama cosmology telescope lensing measurements

Blake D. Sherwin, Joanna Dunkley, Sudeep Das, John W. Appel, J. Richard Bond, C. Sofia Carvalho, Mark J. Devlin, Rolando Dünner, Thomas Essinger-Hileman, Joseph W. Fowler, Amir Hajian, Mark Halpern, Matthew Hasselfield, Adam D. Hincks, Renée Hlozek, John P. Hughes, Kent D. Irwin, Jeff Klein, Arthur Kosowsky, Tobias A. MarriageDanica Marsden, Kavilan Moodley, Felipe Menanteau, 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

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Abstract

For the first time, measurements of the cosmic microwave background radiation (CMB) alone favor cosmologies with w=-1 dark energy over models without dark energy at a 3.2-sigma level. We demonstrate this by combining the CMB lensing deflection power spectrum from the Atacama Cosmology Telescope with temperature and polarization power spectra from the Wilkinson Microwave Anisotropy Probe. The lensing data break the geometric degeneracy of different cosmological models with similar CMB temperature power spectra. Our CMB-only measurement of the dark energy density Ω_Λ confirms other measurements from supernovae, galaxy clusters, and baryon acoustic oscillations, and demonstrates the power of CMB lensing as a new cosmological tool.

Original language	English (US)
Article number	021302
Journal	Physical review letters
Volume	107
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevLett.107.021302
State	Published - Jul 5 2011

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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Sherwin, B. D., Dunkley, J., Das, S., Appel, J. W., Bond, J. R., Carvalho, C. S., Devlin, M. J., Dünner, R., Essinger-Hileman, T., Fowler, J. W., Hajian, A., Halpern, M., Hasselfield, M., Hincks, A. D., Hlozek, R., Hughes, J. P., Irwin, K. D., Klein, J., Kosowsky, A., ... Wollack, E. (2011). Evidence for dark energy from the cosmic microwave background alone using the atacama cosmology telescope lensing measurements. Physical review letters, 107(2), Article 021302. https://doi.org/10.1103/PhysRevLett.107.021302

@article{dc870d49d9cb4a6b87617468de1596cb,

title = "Evidence for dark energy from the cosmic microwave background alone using the atacama cosmology telescope lensing measurements",

abstract = "For the first time, measurements of the cosmic microwave background radiation (CMB) alone favor cosmologies with w=-1 dark energy over models without dark energy at a 3.2-sigma level. We demonstrate this by combining the CMB lensing deflection power spectrum from the Atacama Cosmology Telescope with temperature and polarization power spectra from the Wilkinson Microwave Anisotropy Probe. The lensing data break the geometric degeneracy of different cosmological models with similar CMB temperature power spectra. Our CMB-only measurement of the dark energy density ΩΛ confirms other measurements from supernovae, galaxy clusters, and baryon acoustic oscillations, and demonstrates the power of CMB lensing as a new cosmological tool.",

author = "Sherwin, {Blake D.} and Joanna Dunkley and Sudeep Das and Appel, {John W.} and Bond, {J. Richard} and Carvalho, {C. Sofia} and Devlin, {Mark J.} 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 Hughes, {John P.} and Irwin, {Kent D.} and Jeff Klein and Arthur Kosowsky and Marriage, {Tobias A.} and Danica Marsden and Kavilan Moodley and Felipe Menanteau 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.107.021302",

language = "English (US)",

volume = "107",

journal = "Physical review letters",

issn = "0031-9007",

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Sherwin, BD, Dunkley, J, Das, S, Appel, JW, Bond, JR, Carvalho, CS, Devlin, MJ, Dünner, R, Essinger-Hileman, T, Fowler, JW, Hajian, A, Halpern, M, Hasselfield, M, Hincks, AD, Hlozek, R, Hughes, JP, Irwin, KD, Klein, J, Kosowsky, A, Marriage, TA, Marsden, D, Moodley, K, Menanteau, F, 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, 'Evidence for dark energy from the cosmic microwave background alone using the atacama cosmology telescope lensing measurements', Physical review letters, vol. 107, no. 2, 021302. https://doi.org/10.1103/PhysRevLett.107.021302

TY - JOUR

T1 - Evidence for dark energy from the cosmic microwave background alone using the atacama cosmology telescope lensing measurements

AU - Sherwin, Blake D.

AU - Dunkley, Joanna

AU - Das, Sudeep

AU - Appel, John W.

AU - Bond, J. Richard

AU - Carvalho, C. Sofia

AU - Devlin, Mark J.

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 - Hughes, John P.

AU - Irwin, Kent D.

AU - Klein, Jeff

AU - Kosowsky, Arthur

AU - Marriage, Tobias A.

AU - Marsden, Danica

AU - Moodley, Kavilan

AU - Menanteau, Felipe

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 - For the first time, measurements of the cosmic microwave background radiation (CMB) alone favor cosmologies with w=-1 dark energy over models without dark energy at a 3.2-sigma level. We demonstrate this by combining the CMB lensing deflection power spectrum from the Atacama Cosmology Telescope with temperature and polarization power spectra from the Wilkinson Microwave Anisotropy Probe. The lensing data break the geometric degeneracy of different cosmological models with similar CMB temperature power spectra. Our CMB-only measurement of the dark energy density ΩΛ confirms other measurements from supernovae, galaxy clusters, and baryon acoustic oscillations, and demonstrates the power of CMB lensing as a new cosmological tool.

AB - For the first time, measurements of the cosmic microwave background radiation (CMB) alone favor cosmologies with w=-1 dark energy over models without dark energy at a 3.2-sigma level. We demonstrate this by combining the CMB lensing deflection power spectrum from the Atacama Cosmology Telescope with temperature and polarization power spectra from the Wilkinson Microwave Anisotropy Probe. The lensing data break the geometric degeneracy of different cosmological models with similar CMB temperature power spectra. Our CMB-only measurement of the dark energy density ΩΛ confirms other measurements from supernovae, galaxy clusters, and baryon acoustic oscillations, and demonstrates the power of CMB lensing as a new cosmological tool.

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U2 - 10.1103/PhysRevLett.107.021302

DO - 10.1103/PhysRevLett.107.021302

M3 - Article

C2 - 21797591

AN - SCOPUS:79961086783

SN - 0031-9007

VL - 107

JO - Physical review letters

JF - Physical review letters

IS - 2

M1 - 021302

ER -

Evidence for dark energy from the cosmic microwave background alone using the atacama cosmology telescope lensing measurements

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