Constraints on cosmological parameters from MAXIMA-1

A. Balbi; P. Ade; J. Bock; J. Borrill; A. Boscaleri; P. De Bernardis; P. G. Ferreira; S. Hanany; V. Hristov; A. H. Jaffe; A. T. Lee; S. Oh; E. Pascale; B. Rabii; P. L. Richards; G. F. Smoot; R. Stompor; C. D. Winant; J. H.P. Wu

doi:10.1086/317323

Constraints on cosmological parameters from MAXIMA-1

A. Balbi, P. Ade, J. Bock, J. Borrill, A. Boscaleri, P. De Bernardis, P. G. Ferreira, S. Hanany, V. Hristov, A. H. Jaffe, A. T. Lee, S. Oh, E. Pascale, B. Rabii, P. L. Richards, G. F. Smoot, R. Stompor, C. D. Winant, J. H.P. Wu

Physics and Astronomy (Twin Cities)

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Abstract

We set new constraints on a seven-dimensional space of cosmological parameters within the class of inflationary adiabatic models. We use the angular power spectrum of the cosmic microwave background measured over a wide range of l in the first flight of the MAXIMA balloon-borne experiment (MAXIMA-1) and the low-l results from the COBE Differential Microwave Radiometer experiment. We find constraints on the total energy density of the universe, Ω = 1.0^+0.15_-0.30, the physical density of baryons, Ω_bh² = 0.03 ± 0.01, the physical density of cold dark matter, Ω_cdmh² = 0.2^+0.2_-0.1, and the spectral index of primordial scalar fluctuations, n_s = 1.08 ± 0.1, all at the 95% confidence level. By combining our results with measurements of high-redshift supernovae we constrain the value of the cosmological constant and the fractional amount of pressureless matter in the universe to 0.45 < Ω_Λ < 0.75 and 0.25 < Ω_m < 0.50, at the 95% confidence level. Our results are consistent with a flat universe and the shape parameter deduced from large-scale structure, and in marginal agreement with the baryon density from big bang nucleosynthesis.

Original language	English (US)
Pages (from-to)	L1-L4
Journal	Astrophysical Journal
Volume	545
Issue number	1 PART 2
DOIs	https://doi.org/10.1086/317323
State	Published - Dec 10 2000

Bibliographical note

Funding Information:
We thank S. Jha and the High-Z Supernova Search Team for kindly providing the combined likelihood from supernova measurements used in this paper. P. G. F. acknowledges fruitful discussions with A. Melchiorri. MAXIMA is supported by NASA grants NAG5-3941, NAG5-4454, by the NSF through the Center for Particle Astrophysics at UC Berkeley, NSF co-operative agreement AST 91-20005. The data analysis used resources of the National Energy Research Scientific Computing center which is supported by the Office of Science of the US Department of Energy under contract DE-AC03-76SF00098. P. A. acknowledges support from PPARC rolling grant, UK. P. G. F. acknowledges support from the RS. A. H. J. and J. H. P. W. acknowledge support from NASA LTSA grant NAG5-6552 and NSF KDI grant 9872979. B. R. and C. D. W. acknowledge support from NASA GSRP grants S00-GSRP-032 and S00-GSRP-031. We acknowledge use of CAMB.

Keywords

Cosmic microwave background
Cosmology: Observations
Large-scale structure of universe

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10.1086/317323

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Balbi, A., Ade, P., Bock, J., Borrill, J., Boscaleri, A., De Bernardis, P., Ferreira, P. G., Hanany, S., Hristov, V., Jaffe, A. H., Lee, A. T., Oh, S., Pascale, E., Rabii, B., Richards, P. L., Smoot, G. F., Stompor, R., Winant, C. D., & Wu, J. H. P. (2000). Constraints on cosmological parameters from MAXIMA-1. Astrophysical Journal, 545(1 PART 2), L1-L4. https://doi.org/10.1086/317323

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title = "Constraints on cosmological parameters from MAXIMA-1",

abstract = "We set new constraints on a seven-dimensional space of cosmological parameters within the class of inflationary adiabatic models. We use the angular power spectrum of the cosmic microwave background measured over a wide range of l in the first flight of the MAXIMA balloon-borne experiment (MAXIMA-1) and the low-l results from the COBE Differential Microwave Radiometer experiment. We find constraints on the total energy density of the universe, Ω = 1.0+0.15-0.30, the physical density of baryons, Ωbh2 = 0.03 ± 0.01, the physical density of cold dark matter, Ωcdmh2 = 0.2+0.2-0.1, and the spectral index of primordial scalar fluctuations, ns = 1.08 ± 0.1, all at the 95% confidence level. By combining our results with measurements of high-redshift supernovae we constrain the value of the cosmological constant and the fractional amount of pressureless matter in the universe to 0.45 < ΩΛ < 0.75 and 0.25 < Ωm < 0.50, at the 95% confidence level. Our results are consistent with a flat universe and the shape parameter deduced from large-scale structure, and in marginal agreement with the baryon density from big bang nucleosynthesis.",

keywords = "Cosmic microwave background, Cosmology: Observations, Large-scale structure of universe",

author = "A. Balbi and P. Ade and J. Bock and J. Borrill and A. Boscaleri and {De Bernardis}, P. and Ferreira, {P. G.} and S. Hanany and V. Hristov and Jaffe, {A. H.} and Lee, {A. T.} and S. Oh and E. Pascale and B. Rabii and Richards, {P. L.} and Smoot, {G. F.} and R. Stompor and Winant, {C. D.} and Wu, {J. H.P.}",

note = "Funding Information: We thank S. Jha and the High-Z Supernova Search Team for kindly providing the combined likelihood from supernova measurements used in this paper. P. G. F. acknowledges fruitful discussions with A. Melchiorri. MAXIMA is supported by NASA grants NAG5-3941, NAG5-4454, by the NSF through the Center for Particle Astrophysics at UC Berkeley, NSF co-operative agreement AST 91-20005. The data analysis used resources of the National Energy Research Scientific Computing center which is supported by the Office of Science of the US Department of Energy under contract DE-AC03-76SF00098. P. A. acknowledges support from PPARC rolling grant, UK. P. G. F. acknowledges support from the RS. A. H. J. and J. H. P. W. acknowledge support from NASA LTSA grant NAG5-6552 and NSF KDI grant 9872979. B. R. and C. D. W. acknowledge support from NASA GSRP grants S00-GSRP-032 and S00-GSRP-031. We acknowledge use of CAMB.",

year = "2000",

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doi = "10.1086/317323",

language = "English (US)",

volume = "545",

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journal = "Astrophysical Journal",

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TY - JOUR

T1 - Constraints on cosmological parameters from MAXIMA-1

AU - Balbi, A.

AU - Ade, P.

AU - Bock, J.

AU - Borrill, J.

AU - Boscaleri, A.

AU - De Bernardis, P.

AU - Ferreira, P. G.

AU - Hanany, S.

AU - Hristov, V.

AU - Jaffe, A. H.

AU - Lee, A. T.

AU - Oh, S.

AU - Pascale, E.

AU - Rabii, B.

AU - Richards, P. L.

AU - Smoot, G. F.

AU - Stompor, R.

AU - Winant, C. D.

AU - Wu, J. H.P.

N1 - Funding Information: We thank S. Jha and the High-Z Supernova Search Team for kindly providing the combined likelihood from supernova measurements used in this paper. P. G. F. acknowledges fruitful discussions with A. Melchiorri. MAXIMA is supported by NASA grants NAG5-3941, NAG5-4454, by the NSF through the Center for Particle Astrophysics at UC Berkeley, NSF co-operative agreement AST 91-20005. The data analysis used resources of the National Energy Research Scientific Computing center which is supported by the Office of Science of the US Department of Energy under contract DE-AC03-76SF00098. P. A. acknowledges support from PPARC rolling grant, UK. P. G. F. acknowledges support from the RS. A. H. J. and J. H. P. W. acknowledge support from NASA LTSA grant NAG5-6552 and NSF KDI grant 9872979. B. R. and C. D. W. acknowledge support from NASA GSRP grants S00-GSRP-032 and S00-GSRP-031. We acknowledge use of CAMB.

PY - 2000/12/10

Y1 - 2000/12/10

N2 - We set new constraints on a seven-dimensional space of cosmological parameters within the class of inflationary adiabatic models. We use the angular power spectrum of the cosmic microwave background measured over a wide range of l in the first flight of the MAXIMA balloon-borne experiment (MAXIMA-1) and the low-l results from the COBE Differential Microwave Radiometer experiment. We find constraints on the total energy density of the universe, Ω = 1.0+0.15-0.30, the physical density of baryons, Ωbh2 = 0.03 ± 0.01, the physical density of cold dark matter, Ωcdmh2 = 0.2+0.2-0.1, and the spectral index of primordial scalar fluctuations, ns = 1.08 ± 0.1, all at the 95% confidence level. By combining our results with measurements of high-redshift supernovae we constrain the value of the cosmological constant and the fractional amount of pressureless matter in the universe to 0.45 < ΩΛ < 0.75 and 0.25 < Ωm < 0.50, at the 95% confidence level. Our results are consistent with a flat universe and the shape parameter deduced from large-scale structure, and in marginal agreement with the baryon density from big bang nucleosynthesis.

AB - We set new constraints on a seven-dimensional space of cosmological parameters within the class of inflationary adiabatic models. We use the angular power spectrum of the cosmic microwave background measured over a wide range of l in the first flight of the MAXIMA balloon-borne experiment (MAXIMA-1) and the low-l results from the COBE Differential Microwave Radiometer experiment. We find constraints on the total energy density of the universe, Ω = 1.0+0.15-0.30, the physical density of baryons, Ωbh2 = 0.03 ± 0.01, the physical density of cold dark matter, Ωcdmh2 = 0.2+0.2-0.1, and the spectral index of primordial scalar fluctuations, ns = 1.08 ± 0.1, all at the 95% confidence level. By combining our results with measurements of high-redshift supernovae we constrain the value of the cosmological constant and the fractional amount of pressureless matter in the universe to 0.45 < ΩΛ < 0.75 and 0.25 < Ωm < 0.50, at the 95% confidence level. Our results are consistent with a flat universe and the shape parameter deduced from large-scale structure, and in marginal agreement with the baryon density from big bang nucleosynthesis.

KW - Cosmic microwave background

KW - Cosmology: Observations

KW - Large-scale structure of universe

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U2 - 10.1086/317323

DO - 10.1086/317323

M3 - Article

AN - SCOPUS:0141511080

SN - 0004-637X

VL - 545

SP - L1-L4

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 1 PART 2

ER -

Constraints on cosmological parameters from MAXIMA-1

Abstract

Bibliographical note

Keywords

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