scholarly journals The clustering of the SDSS-IV extended Baryon Oscillation Spectroscopic Survey DR14 quasar sample: structure growth rate measurement from the anisotropic quasar power spectrum in the redshift range 0.8 < z < 2.2

2018 ◽  
Vol 477 (2) ◽  
pp. 1604-1638 ◽  
Author(s):  
Héctor Gil-Marín ◽  
Julien Guy ◽  
Pauline Zarrouk ◽  
Etienne Burtin ◽  
Chia-Hsun Chuang ◽  
...  
Keyword(s):  
Growth Rate ◽  
Power Spectrum ◽  
Rate Measurement ◽  
Redshift Range ◽  
Sample Structure ◽  
Growth Rate Measurement

scholarly journals The completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: a multitracer analysis in Fourier space for measuring the cosmic structure growth and expansion rate

2021 ◽  
Vol 504 (1) ◽  
pp. 33-52
Author(s):  
Gong-Bo Zhao ◽  
Yuting Wang ◽  
Atsushi Taruya ◽  
Weibing Zhang ◽  
Héctor Gil-Marín ◽  
...  
Keyword(s):  
Growth Rate ◽  
Power Spectrum ◽  
Confidence Level ◽  
Expansion Rate ◽  
Fourier Space ◽  
Redshift Range ◽  
Significance Level ◽  
Data Product ◽  
New Development ◽  
Cross Power Spectrum

ABSTRACT We perform a joint BAO and RSD analysis using the eBOSS DR16 LRG and ELG samples in the redshift range of z ∈ [0.6, 1.1], and detect an RSD signal from the cross-power spectrum at a ∼4σ confidence level, i.e., fσ8 = 0.317 ± 0.080 at zeff = 0.77. Based on the chained power spectrum, which is a new development in this work to mitigate the angular systematics, we measure the BAO distances and growth rate simultaneously at two effective redshifts, namely, DM/rd (z = 0.70) = 17.96 ± 0.51, DH/rd (z = 0.70) = 21.22 ± 1.20, fσ8 (z = 0.70) = 0.43 ± 0.05, and DM/rd (z = 0.845) = 18.90 ± 0.78, DH/rd (z = 0.845) = 20.91 ± 2.86, fσ8 (z = 0.845) = 0.30 ± 0.08. Combined with BAO measurements including those from the eBOSS DR16 QSO and Lyman-α sample, our measurement has raised the significance level of a non-zero ΩΛ to ∼11σ. The data product of this work is publicly available at https://github.com/icosmology/eBOSS_DR16_LRGxELG and https://www.sdss.org/science/final-bao-and-rsd-measurements/.

scholarly journals Real-time, non-destructive and in-field foliage yield and growth rate measurement in perennial ryegrass (Lolium perenne L.)

Plant Methods ◽  
2019 ◽  
Vol 15 (1) ◽  
Author(s):  
Kioumars Ghamkhar ◽  
Kenji Irie ◽  
Michael Hagedorn ◽  
Jeffrey Hsiao ◽  
Jaco Fourie ◽  
...  
Keyword(s):  
Growth Rate ◽  
Real Time ◽  
Lolium Perenne ◽  
Perennial Ryegrass ◽  
Rate Measurement ◽  
Lolium Perenne L ◽  
Growth Rate Measurement ◽  
Non Destructive
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