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   Articles with "acoustic oscillation" as a keyword



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Measuring the baryon acoustic oscillation peak position with different galaxy selections

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recommendations! Published in 2020 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/staa973

Abstract: We investigate if, for a fixed number density of targets and redshift, there is an optimal way to select a galaxy sample in order to measure the baryon acoustic oscillation (BAO) scale, which is used… read more here.

Keywords: baryon acoustic; galaxy; position; density ... See more keywords
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Measuring the 2D baryon acoustic oscillation signal of galaxies in WiggleZ: cosmological constraints

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recommendations! Published in 2017 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/stw2725

Abstract: We present results from the 2D anisotropic baryon acoustic oscillation (BAO) signal present in the final data set from the WiggleZ Dark Energy Survey. We analyse the WiggleZ data in two ways: first using the… read more here.

Keywords: baryon acoustic; measuring baryon; oscillation; oscillation signal ... See more keywords
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Constraints on dark energy dynamics and spatial curvature from Hubble parameter and baryon acoustic oscillation data

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recommendations! Published in 2018 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/sty1922

Abstract: We use all available baryon acoustic oscillation distance measurements and Hubble parameter data to constrain the cosmological constant $\Lambda$, dynamical dark energy, and spatial curvature in simple cosmological models. We find that the consensus spatially… read more here.

Keywords: baryon acoustic; hubble parameter; energy; acoustic oscillation ... See more keywords
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Improving baryon acoustic oscillation measurement with the combination of cosmic voids and galaxies

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recommendations! Published in 2019 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/stz3339

Abstract: We develop a methodology to optimise the measurement of Baryon Acoustic Oscillation (BAO) from a given galaxy sample. In our previous work, we demonstrated that one can measure BAO from tracers in under-dense regions (voids).… read more here.

Keywords: baryon acoustic; galaxies voids; bao; measurement ... See more keywords