Constraint on the growth factor of the cosmic structure from the damping of the baryon acoustic oscillation signature

Journal Article · Tue Dec 15 00:00:00 EST 2009 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.80.123524· OSTI ID:21313579

Nakamura, Gen; Sato, Takahiro; Yamamoto, Kazuhiro ^[1]; Huetsi, Gert ^[2]

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1. Department of Physical Science, Hiroshima University, Higashi-Hiroshima 739-8526 (Japan)
2. Department of Physics and Astronomy, University College London, London, WC1E 6BT (United Kingdom)

We determine a constraint on the growth factor by measuring the damping of the baryon acoustic oscillations in the matter power spectrum using the Sloan digital sky survey luminous red galaxy sample. We obtain an effective upper limit on {sigma}{sub 8}D{sub 1}(z=0.3) using the damping of the baryon acoustic oscillation signature, where {sigma}{sub 8} is the root mean square overdensity in a sphere of radius 8h{sup -1} Mpc and D{sub 1}(z) is the growth factor at redshift z. The above result assumes that other parameters are fixed and the cosmology is taken to be a spatially flat cold dark matter universe with the cosmological constant.

• OSTI ID: 21313579
• Journal Information: Physical Review. D, Particles Fields, Vol. 80, Issue 12; Other Information: DOI: 10.1103/PhysRevD.80.123524; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYONS
COSMOLOGICAL CONSTANT
COSMOLOGY
DAMPING
GALAXIES
GROWTH FACTORS
NONLUMINOUS MATTER
OSCILLATIONS
RED SHIFT
SPECTRA
UNIVERSE