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Reconstruction of the primordial power spectrum from CMB data

May, 2011

8 pages

Published in:

JCAP 08 (2011) 031

e-Print:

1105.5916 [astro-ph.CO]

DOI:

10.1088/1475-7516/2011/08/031

View in:

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Abstract: (arXiv)

Measuring the deviation from scale invariance of the primordial power spectrum is a critical test of inflation. In this paper we reconstruct the shape of the primordial power spectrum of curvature perturbations from the cosmic microwave background data, including the 7-year Wilkinson Microwave Anisotropy Probe data and the Atacama Cosmology Telescope 148 GHz data, by using a binning method of a cubic spline interpolation in log-log space. We find that the power-law spectrum is preferred by the data and that the Harrison-Zel'dovich spectrum is disfavored at 95% confidence level. These conclusions hold with and without allowing for tensor modes, however the simpler model without tensors is preferred by the data. We do not find evidence for a feature in the primordial power spectrum - in full agreement with generic predictions from cosmological inflation.

inflation
cosmological parameters from CMBR
power spectrum: primordial
curvature: perturbation
cosmic background radiation
inflation
WMAP
power spectrum: scalar
power spectrum: tensor

References(41)

Figures(18)

Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation

WMAP

Collaboration

•

E. Komatsu
(
- Texas U.
)

et al.

- Astrophys.J.Suppl. 180 (2009) 330-376
•
e-Print:
- 0803.0547
•
DOI:
- 10.1088/0067-0049/180/2/330

Seven-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation

WMAP

Collaboration

•

E. Komatsu
(
- Texas U.
)

et al.

- Astrophys.J.Suppl. 192 (2011) 18
•
e-Print:
- 1001.4538
•
DOI:
- 10.1088/0067-0049/192/2/18

The Atacama Cosmology Telescope: Cosmological Parameters from the 2008 Power Spectra

J. Dunkley
(
- Oxford U. and
- Princeton U. and
- Princeton U., Astrophys. Sci. Dept.
)
,
R. Hlozek
(
- Oxford U. and
- Princeton U. and
- Princeton U., Astrophys. Sci. Dept.
)
,
J. Sievers
(
- Oxford U. and
- Princeton U. and
- Princeton U., Astrophys. Sci. Dept.
)
,
V. Acquaviva
(
- Oxford U. and
- Princeton U. and
- Princeton U., Astrophys. Sci. Dept.
)
,
P.A.R. Ade
(
- Oxford U. and
- Princeton U. and
- Princeton U., Astrophys. Sci. Dept.
)

et al.

- Astrophys.J. 739 (2011) 52
•
e-Print:
- 1009.0866
•
DOI:
- 10.1088/0004-637X/739/1/52

An Alternative to the cosmological 'concordance model'

Alain Blanchard
(
- Midi-Pyrenees Observ.
)
,
Marian Douspis
(
- Oxford U.
)
,
Michael Rowan-Robinson
(
- Imperial Coll., London
)
,
Subir Sarkar
(
- Oxford U., Theor. Phys.
)

- Astron.Astrophys. 412 (2003) 35-44
•
e-Print:
- astro-ph/0304237
•
DOI:
- 10.1051/0004-6361:20031425

On the APM power spectrum and the CMB anisotropy: Evidence for a phase transition during inflation?

J. Barriga
(
- Barcelona, IEEC and
- INAOE, Puebla
)
,
E. Gaztanaga
(
- Barcelona, IEEC and
- INAOE, Puebla
)
,
M.G. Santos
(
- Oxford U.
)
,
Subir Sarkar
(
- Oxford U.
)

- Mon.Not.Roy.Astron.Soc. 324 (2001) 977
•
e-Print:
- astro-ph/0011398
•
DOI:
- 10.1046/j.1365-8711.2001.04373.x

Is the low CMB quadrupole a signature of spatial curvature?

George Efstathiou
(
- Cambridge U., Inst. of Astron.
)

- Mon.Not.Roy.Astron.Soc. 343 (2003) L95
•
e-Print:
- astro-ph/0303127
•
DOI:
- 10.1046/j.1365-8711.2003.06940.x

A bayesian analysis of the primordial power spectrum

- Mon.Not.Roy.Astron.Soc. 369 (2006) 1123-1130
•
e-Print:
- astro-ph/0511573
•
DOI:
- 10.1111/j.1365-2966.2006.10351.x

WMAP 3-year primordial power spectrum

- Mon.Not.Roy.Astron.Soc. 381 (2007) 68-74
•
e-Print:
- astro-ph/0607404
•
DOI:
- 10.1111/j.1365-2966.2007.11778.x

WMAP 3-year primordial power spectrum

- Mon.Not.Roy.Astron.Soc. 381 (2007) 68-74
•
e-Print:
- astro-ph/0607404
•
DOI:
- 10.1111/j.1365-2966.2007.11778.x

Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Angular Power Spectra

WMAP

Collaboration

•

M.R. Nolta
(
- Toronto U.
)

et al.

- Astrophys.J.Suppl. 180 (2009) 296-305
•
e-Print:
- 0803.0593
•
DOI:
- 10.1088/0067-0049/180/2/296

Large angle anomalies in the CMB

Craig J. Copi
(
- Case Western Reserve U., CERCA
)
,
Dragan Huterer
(
- Michigan U.
)
,
Dominik J. Schwarz
(
- Bielefeld U.
)
,
Glenn D. Starkman
(
- Case Western Reserve U., CERCA and
- Case Western Reserve U.
)

- Adv.Astron. 2010 (2010) 847541
•
e-Print:
- 1004.5602
•
DOI:
- 10.1155/2010/847541

Reconstructing the primordial power spectrum

- Mon.Not.Roy.Astron.Soc. 342 (2003) L72
•
e-Print:
- astro-ph/0302306
•
DOI:
- 10.1046/j.1365-8711.2003.06807.x

Reconstructing the primordial power spectrum - A New algorithm

Steen Hannestad
(
- Odense U. and
- Nordita
)

- JCAP 04 (2004) 002
•
e-Print:
- astro-ph/0311491
•
DOI:
- 10.1088/1475-7516/2004/04/002

Smoothing spline primordial power spectrum reconstruction

- Phys.Rev.D 72 (2005) 103520
•
e-Print:
- astro-ph/0506707
•
DOI:
- 10.1103/PhysRevD.72.103520

On Minimally-Parametric Primordial Power Spectrum Reconstruction and the Evidence for a Red Tilt

Licia Verde
(
- ICREA, Barcelona and
- Barcelona, IEEC and
- Princeton U. Observ.
)
,
Hiranya V. Peiris
(
)

- JCAP 07 (2008) 009
•
e-Print:
- 0802.1219
•
DOI:
- 10.1088/1475-7516/2008/07/009

The Shape of the Primordial Power Spectrum: A Last Stand Before Planck

Hiranya V. Peiris
(
- Cambridge U. and
- University Coll. London
)
,
Licia Verde
(
- ICREA, Barcelona and
- Barcelona U.
)

- Phys.Rev.D 81 (2010) 021302
•
e-Print:
- 0912.0268
•
DOI:
- 10.1103/PhysRevD.81.021302

Direct wavelet expansion of the primordial power spectrum: Results from pre-MAP CMB data

Pia Mukherjee
(
- Oklahoma U.
)
,
Yun Wang
(
- Oklahoma U.
)

- Astrophys.J. 598 (2003) 779-784
•
e-Print:
- astro-ph/0301562
•
DOI:
- 10.1086/379107

Model-independent reconstruction of the primordial power spectrum from WMAP data

Pia Mukherjee
(
- Oklahoma U.
)
,
Yun Wang
(
- Oklahoma U.
)

- Astrophys.J. 599 (2003) 1-6
•
e-Print:
- astro-ph/0303211
•
DOI:
- 10.1086/379161

Primordial power spectrum reconstruction

Pia Mukherjee
(
- Oklahoma U. and
- Sussex U., Astron. Ctr.
)
,
Yun Wang
(
- Oklahoma U.
)

- JCAP 12 (2005) 007
•
e-Print:
- astro-ph/0502136
•
DOI:
- 10.1088/1475-7516/2005/12/007

Principal power of the CMB

Wayne Hu
(
- Chicago U., KICP and
- Chicago U., Astron. Astrophys. Ctr.
)
,
Takemi Okamoto
(
- Chicago U.
)

- Phys.Rev.D 69 (2004) 043004
•
e-Print:
- astro-ph/0308049
•
DOI:
- 10.1103/PhysRevD.69.043004

Measuring the primordial power spectrum: Principal component analysis of the cosmic microwave background

Samuel M. Leach
(
- SISSA, Trieste and
- Geneva U.
)

- Mon.Not.Roy.Astron.Soc. 372 (2006) 646-654
•
e-Print:
- astro-ph/0506390
•
DOI:
- 10.1111/j.1365-2966.2006.10842.x

Reconstructing the primordial spectrum from WMAP data by the cosmic inversion method

- Astrophys.J. 607 (2004) 32-39
•
e-Print:
- astro-ph/0309662
•
DOI:
- 10.1086/383339

Reconstruction of the primordial fluctuation spectrum from the five-year WMAP data by the cosmic inversion method with band-power decorrelation analysis

Ryo Nagata
(
- Tokyo U., RESCEU
)
,
Jun'ichi Yokoyama
(
- Tokyo U., RESCEU
)

- Phys.Rev.D 78 (2008) 123002
•
e-Print:
- 0809.4537
•
DOI:
- 10.1103/PhysRevD.78.123002

Band-power reconstruction of the primordial fluctuation spectrum by the maximum likelihood reconstruction method

- Phys.Rev.D 79 (2009) 043010
•
e-Print:
- 0812.4585
•
DOI:
- 10.1103/PhysRevD.79.043010

Brute force reconstruction of the primordial fluctuation spectrum from five-year Wilkinson Microwave Anisotropy Probe observations

Kiyotomo Ichiki
(
- Nagoya U.
)
,
Ryo Nagata
(
- Tokyo U.
)

- Phys.Rev.D 80 (2009) 083002
•
DOI:
- 10.1103/PhysRevD.80.083002

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