Precision epoch of reionization studies with next-generation CMB experiments

Erminia Calabrese, Renée Hložek, Nick Battaglia, J. Richard Bond, Francesco De Bernardis, Mark J. Devlin, Amir Hajian, Shawn Henderson, J. Colin Hil, Arthur Kosowsky, Thibaut Louis, Jeff McMahon, Kavilan Moodley, Laura Newburgh, Michael D. Niemack, Lyman A. Page, Bruce Partridge, Neelima Sehgal, Jonathan L. Sievers, David N. SpergelSuzanne T. Staggs, Eric R. Switzer, Hy Trac, Edward J. Wollack

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Abstract

Future arcminute resolution polarization data from ground-based Cosmic Microwave Background (CMB) observations can be used to estimate the contribution to the temperature power spectrum from the primary anisotropies and to uncover the signature of reionization near ℓ=1500 in the small angular-scale temperature measurements. Our projections are based on combining expected small-scale E-mode polarization measurements from Advanced ACTPol in the range 300<ℓ<3000 with simulated temperature data from the full Planck mission in the low and intermediate ℓ region, 2<ℓ<2000. We show that the six basic cosmological parameters determined from this combination of data will predict the underlying primordial temperature spectrum at high multipoles to better than 1% accuracy. Assuming an efficient cleaning from multi-frequency channels of most foregrounds in the temperature data, we investigate the sensitivity to the only residual secondary component, the kinematic Sunyaev-Zel'dovich (kSZ) term. The CMB polarization is used to break degeneracies between primordial and secondary terms present in temperature and, in effect, to remove from the temperature data all but the residual kSZ term. We estimate a 15σ detection of the diffuse homogeneous kSZ signal from expected AdvACT temperature data at ℓ>1500, leading to a measurement of the amplitude of matter density fluctuations, σ8, at 1% precision. Alternatively, by exploring the reionization signal encoded in the patchy kSZ measurements, we bound the time and duration of the reionization with σ(zre)=1.1 and σ(Δzre)=0.2. We find that these constraints degrade rapidly with large beam sizes, which highlights the importance of arcminute-scale resolution for future CMB surveys.

Original languageEnglish (US)
Article number010
JournalJournal of Cosmology and Astroparticle Physics
Volume2014
Issue number8
DOIs
StatePublished - Aug 1 2014

Fingerprint

time measurement
microwaves
polarization
temperature measurement
power spectra
projection
signatures
anisotropy
estimates
temperature

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics

Keywords

  • CMBR experiments
  • CMBR polarization
  • Sunyaev-Zeldovich effect
  • reionization

Cite this

Calabrese, E., Hložek, R., Battaglia, N., Bond, J. R., De Bernardis, F., Devlin, M. J., ... Wollack, E. J. (2014). Precision epoch of reionization studies with next-generation CMB experiments. Journal of Cosmology and Astroparticle Physics, 2014(8), [010]. https://doi.org/10.1088/1475-7516/2014/08/010
Calabrese, Erminia ; Hložek, Renée ; Battaglia, Nick ; Bond, J. Richard ; De Bernardis, Francesco ; Devlin, Mark J. ; Hajian, Amir ; Henderson, Shawn ; Hil, J. Colin ; Kosowsky, Arthur ; Louis, Thibaut ; McMahon, Jeff ; Moodley, Kavilan ; Newburgh, Laura ; Niemack, Michael D. ; Page, Lyman A. ; Partridge, Bruce ; Sehgal, Neelima ; Sievers, Jonathan L. ; Spergel, David N. ; Staggs, Suzanne T. ; Switzer, Eric R. ; Trac, Hy ; Wollack, Edward J. / Precision epoch of reionization studies with next-generation CMB experiments. In: Journal of Cosmology and Astroparticle Physics. 2014 ; Vol. 2014, No. 8.
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Calabrese, E, Hložek, R, Battaglia, N, Bond, JR, De Bernardis, F, Devlin, MJ, Hajian, A, Henderson, S, Hil, JC, Kosowsky, A, Louis, T, McMahon, J, Moodley, K, Newburgh, L, Niemack, MD, Page, LA, Partridge, B, Sehgal, N, Sievers, JL, Spergel, DN, Staggs, ST, Switzer, ER, Trac, H & Wollack, EJ 2014, 'Precision epoch of reionization studies with next-generation CMB experiments', Journal of Cosmology and Astroparticle Physics, vol. 2014, no. 8, 010. https://doi.org/10.1088/1475-7516/2014/08/010

Precision epoch of reionization studies with next-generation CMB experiments. / Calabrese, Erminia; Hložek, Renée; Battaglia, Nick; Bond, J. Richard; De Bernardis, Francesco; Devlin, Mark J.; Hajian, Amir; Henderson, Shawn; Hil, J. Colin; Kosowsky, Arthur; Louis, Thibaut; McMahon, Jeff; Moodley, Kavilan; Newburgh, Laura; Niemack, Michael D.; Page, Lyman A.; Partridge, Bruce; Sehgal, Neelima; Sievers, Jonathan L.; Spergel, David N.; Staggs, Suzanne T.; Switzer, Eric R.; Trac, Hy; Wollack, Edward J.

In: Journal of Cosmology and Astroparticle Physics, Vol. 2014, No. 8, 010, 01.08.2014.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Precision epoch of reionization studies with next-generation CMB experiments

AU - Calabrese, Erminia

AU - Hložek, Renée

AU - Battaglia, Nick

AU - Bond, J. Richard

AU - De Bernardis, Francesco

AU - Devlin, Mark J.

AU - Hajian, Amir

AU - Henderson, Shawn

AU - Hil, J. Colin

AU - Kosowsky, Arthur

AU - Louis, Thibaut

AU - McMahon, Jeff

AU - Moodley, Kavilan

AU - Newburgh, Laura

AU - Niemack, Michael D.

AU - Page, Lyman A.

AU - Partridge, Bruce

AU - Sehgal, Neelima

AU - Sievers, Jonathan L.

AU - Spergel, David N.

AU - Staggs, Suzanne T.

AU - Switzer, Eric R.

AU - Trac, Hy

AU - Wollack, Edward J.

PY - 2014/8/1

Y1 - 2014/8/1

N2 - Future arcminute resolution polarization data from ground-based Cosmic Microwave Background (CMB) observations can be used to estimate the contribution to the temperature power spectrum from the primary anisotropies and to uncover the signature of reionization near ℓ=1500 in the small angular-scale temperature measurements. Our projections are based on combining expected small-scale E-mode polarization measurements from Advanced ACTPol in the range 300<ℓ<3000 with simulated temperature data from the full Planck mission in the low and intermediate ℓ region, 2<ℓ<2000. We show that the six basic cosmological parameters determined from this combination of data will predict the underlying primordial temperature spectrum at high multipoles to better than 1% accuracy. Assuming an efficient cleaning from multi-frequency channels of most foregrounds in the temperature data, we investigate the sensitivity to the only residual secondary component, the kinematic Sunyaev-Zel'dovich (kSZ) term. The CMB polarization is used to break degeneracies between primordial and secondary terms present in temperature and, in effect, to remove from the temperature data all but the residual kSZ term. We estimate a 15σ detection of the diffuse homogeneous kSZ signal from expected AdvACT temperature data at ℓ>1500, leading to a measurement of the amplitude of matter density fluctuations, σ8, at 1% precision. Alternatively, by exploring the reionization signal encoded in the patchy kSZ measurements, we bound the time and duration of the reionization with σ(zre)=1.1 and σ(Δzre)=0.2. We find that these constraints degrade rapidly with large beam sizes, which highlights the importance of arcminute-scale resolution for future CMB surveys.

AB - Future arcminute resolution polarization data from ground-based Cosmic Microwave Background (CMB) observations can be used to estimate the contribution to the temperature power spectrum from the primary anisotropies and to uncover the signature of reionization near ℓ=1500 in the small angular-scale temperature measurements. Our projections are based on combining expected small-scale E-mode polarization measurements from Advanced ACTPol in the range 300<ℓ<3000 with simulated temperature data from the full Planck mission in the low and intermediate ℓ region, 2<ℓ<2000. We show that the six basic cosmological parameters determined from this combination of data will predict the underlying primordial temperature spectrum at high multipoles to better than 1% accuracy. Assuming an efficient cleaning from multi-frequency channels of most foregrounds in the temperature data, we investigate the sensitivity to the only residual secondary component, the kinematic Sunyaev-Zel'dovich (kSZ) term. The CMB polarization is used to break degeneracies between primordial and secondary terms present in temperature and, in effect, to remove from the temperature data all but the residual kSZ term. We estimate a 15σ detection of the diffuse homogeneous kSZ signal from expected AdvACT temperature data at ℓ>1500, leading to a measurement of the amplitude of matter density fluctuations, σ8, at 1% precision. Alternatively, by exploring the reionization signal encoded in the patchy kSZ measurements, we bound the time and duration of the reionization with σ(zre)=1.1 and σ(Δzre)=0.2. We find that these constraints degrade rapidly with large beam sizes, which highlights the importance of arcminute-scale resolution for future CMB surveys.

KW - CMBR experiments

KW - CMBR polarization

KW - Sunyaev-Zeldovich effect

KW - reionization

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