The Alcock Paczy'nski test with Baryon Acoustic Oscillations: systematic effects for future surveys
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2017/02/020
Abstract: We investigate the Alcock Paczy'nski (AP) test applied to the Baryon Acoustic Oscillation (BAO) feature in the galaxy correlation function. By using a general formalism that includes relativistic effects, we quantify the importance of the… read more here.
Keywords: baryon acoustic; nski test; test; function ... See more keywords
Measuring the baryon acoustic oscillation peak position with different galaxy selections
Sign Up to like & getrecommendations! 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
Measuring the 2D baryon acoustic oscillation signal of galaxies in WiggleZ: cosmological constraints
Sign Up to like & getrecommendations! 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
Constraints on dark energy dynamics and spatial curvature from Hubble parameter and baryon acoustic oscillation data
Sign Up to like & getrecommendations! 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
The clustering of the SDSS-IV extended Baryon Oscillation Spectroscopic Survey DR14 quasar sample: Measuring the anisotropic baryon acoustic oscillations with redshift weights
Sign Up to like & getrecommendations! Published in 2018 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/sty1955
Abstract: Author(s): Zhu, F; Padmanabhan, N; Ross, AJ; White, M; Percival, WJ; Ruggeri, R; Zhao, GB; Wang, D; Mueller, EM; Burtin, E; Gil-Marin, H; Bautista, J; Beutler, F; Brinkmann, J; Brownstein, JR; Dawson, K; Macorra, ADL;… read more here.
Keywords: sample; baryon acoustic; quasar sample; oscillation ... See more keywords
Dark Energy Survey Year 1 results: measurement of the baryon acoustic oscillation scale in the distribution of galaxies to redshift 1
Sign Up to like & getrecommendations! Published in 2018 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/sty3351
Abstract: We present angular diameter distance measurements obtained by locating the baryon acoustic oscillations (BAO) scale in the distribution of galaxies selected from the first year of Dark Energy Survey data. We consider a sample of… read more here.
Keywords: baryon acoustic; energy survey; dark energy; distribution galaxies ... See more keywords
The clustering of the SDSS-IV extended Baryon Oscillation Spectroscopic Survey DR14 quasar sample: anisotropic Baryon Acoustic Oscillations measurements in Fourier-space with optimal redshift weights
Sign Up to like & getrecommendations! Published in 2018 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/sty654
Abstract: We present a measurement of the anisotropic and isotropic Baryon Acoustic Oscillations (BAO) from the extended Baryon Oscillation Spectroscopic Survey Data Release 14 quasar sample with optimal redshift weights. Applying the redshift weights improves the… read more here.
Keywords: quasar sample; redshift weights; baryon acoustic;
Improving baryon acoustic oscillation measurement with the combination of cosmic voids and galaxies
Sign Up to like & getrecommendations! 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
Robustness of baryon acoustic oscillation constraints for early-Universe modifications of ΛCDM cosmology
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review D"
DOI: 10.1103/physrevd.102.123515
Abstract: Baryon acoustic oscillations (BAO) provide a robust standard ruler, and can be used to constrain the expansion history of the Universe at low redshift. Standard BAO analyses return a model-independent measurement of the expansion rate… read more here.
Keywords: methodology; robustness; bao; cosmology ... See more keywords
Optimal Transport Reconstruction of Baryon Acoustic Oscillations.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review letters"
DOI: 10.1103/physrevlett.129.251101
Abstract: A weighted, semidiscrete, fast optimal transport (OT) algorithm for reconstructing the Lagrangian positions of protohalos from their evolved Eulerian positions is presented. The algorithm makes use of a mass estimate of the biased tracers and… read more here.
Keywords: optimal transport; baryon acoustic; transport reconstruction; reconstruction baryon ... See more keywords
Baryon Acoustic Oscillations from Integrated Neutral Gas Observations: an instrument to observe the 21cm hydrogen line in the redshift range 0.13 < z < 0.45 - status update.
Sign Up to like & getrecommendations! Published in 2021 at "Anais da Academia Brasileira de Ciencias"
DOI: 10.1590/0001-3765202120201096
Abstract: BINGO (BAO from Integrated Neutral Gas Observations) is a unique radio telescope designed to map the intensity of neutral hydrogen distribution at cosmological distances, making the first detection of Baryon Acoustic Oscillations (BAO) in the… read more here.
Keywords: gas observations; baryon acoustic; integrated neutral; acoustic oscillations ... See more keywords