The clustering of the SDSS-IV extended Baryon Oscillation Spectroscopic Survey DR14 quasar sample: measuring the anisotropic Baryon Acoustic Oscillations with redshift weights

Fangzhou Zhu; Nikhil Padmanabhan; Ashley J. Ross; Martin White; Will J. Percival; Rossana Ruggeri; Gong-bo Zhao; Dandan Wang; Eva-Maria Mueller; Etienne Burtin; Héctor Gil-Marín; Florian Beutler; Jonathan Brinkmann; Joel R. Brownstein; Kyle Dawson; Axel de la Macorra; Graziano Rossi; Donald P. Schneider; Rita Tojeiro; Yuting Wang

The clustering of the SDSS-IV extended Baryon Oscillation Spectroscopic Survey DR14 quasar sample: measuring the anisotropic Baryon Acoustic Oscillations with redshift weights

Fangzhou Zhu, Nikhil Padmanabhan, Ashley J. Ross, Martin White, Will J. Percival, Rossana Ruggeri, Gong-bo Zhao, Dandan Wang, Eva-Maria Mueller, Etienne Burtin, Héctor Gil-Marín, Florian Beutler, Jonathan Brinkmann, Joel R. Brownstein, Kyle Dawson, Axel de la Macorra, Graziano Rossi, Donald P. Schneider, Rita Tojeiro, Yuting Wang

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

We present an anisotropic analysis of Baryon Acoustic Oscillation (BAO) signal from the SDSS-IV extended Baryon Oscillation Spectroscopic Survey (eBOSS) Data Release 14 (DR14) quasar sample. The sample consists of 147,000 quasars distributed over a redshift range of 0.8 < z < 2.2. We apply the redshift weights technique to the clustering of quasars in this sample and achieve a 4.6 per cent measurement of the angular distance measurement D_M at z=2.2 and Hubble parameter H at z=0.8. We parameterize the distance-redshift relation, relative to a fiducial model, as a quadratic expansion. The coefficients of this expansion are used to reconstruct the distance-redshift relation and obtain distance and Hubble parameter measurements at all redshifts within the redshift range of the sample. Reporting the result at two characteristic redshifts, we determine D_M(z=1)=3405±305 (r_d/r_d,fid) Mpc, H(z=1)=120.7±7.3 (r_d,fid/rd) km s⁻¹Mpc⁻¹ and D_M(z=2)=5325±249 (r_d/r_d,fid) Mpc, H(z=2)=189.9±32.9 (r_d,fid/r_d) km s⁻¹Mpc⁻¹. These measurements are highly correlated. We assess the outlook of BAO analysis from the final quasar sample by testing the method on a set of mocks that mimic the noise level in the final sample. We demonstrate on these mocks that redshift weighting shrinks the measurement error by over 25 per cent on average. We conclude redshift weighting can bring us closer to the cosmological goal of the final quasar sample.

Original language	English
Journal	Monthly Notices of the Royal Astronomical Society
Publication status	Submitted - 10 Jan 2018

Keywords

Cosmology: observations
Dark energy
Distance scale

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The clustering of the SDSS-IV extended Baryon Oscillation Spectroscopic Survey DR14 quasar sample (dataset)
Ata, M. (Creator), Baumgarten, F. (Creator), Bautista, J. (Creator), Beutler, F. (Creator), Bizyaev, D. (Creator), Blanton, M. R. (Creator), Blazek, J. A. (Creator), Bolton, A. S. (Creator), Brinkmann, J. (Creator), Brownstein, J. R. (Creator), Burtin, E. (Creator), Chuang, C.-H. (Creator), Comparat, J. (Creator), Dawson, K. S. (Creator), de la Macorra, A. (Creator), Du, W. (Creator), du Mas des Bourboux, H. (Creator), Eisenstein, D. J. (Creator), Gil-Marin, H. (Creator), Grabowski, K. (Creator), Guy, J. (Creator), Hand, N. (Creator), Ho, S. (Creator), Hutchinson, T. A. (Creator), Ivanov, M. M. (Creator), Kitaura, F.-S. (Creator), Kneib, J.-P. (Creator), Laurent, P. (Creator), Le Goff, J.-M. (Creator), McEwen, J. E. (Creator), Mueller, E.-M. (Creator), Myers, A. D. (Creator), Newman, J. A. (Creator), Palanque-Delabrouille, N. (Creator), Pan, K. (Creator), Paris, I. (Creator), Pellejero-Ibanez, M. (Creator), Percival, W. J. (Creator), Petitjean, P. (Creator), Prada, F. (Creator), Prakash, A. (Creator), Rodriguez-Torres, S. A. (Creator), Ross, A. J. (Creator), Rossi, G. (Creator), Ruggeri, R. (Creator), Sanchez, A. G. (Creator), Satpathy, S. (Creator), Schlegel, D. J. (Creator), Schneider, D. P. (Creator), Seo, H.-J. (Creator), Slosar, A. (Creator), Streblyanska, A. (Creator), Tinker, J. L. (Creator), Fernandes Tojeiro Reynolds, R. M. (Creator), Vargas Magana, M. (Creator), Vivek, M. (Creator), Wang, Y. (Creator), Yeche, C. (Creator), Yu, L. (Creator), Zarrouk, P. (Creator), Zhao, C. (Creator), Zhao, G.-B. (Creator) & Zhu, F. (Creator), Sloan Digital Sky Survey (SDSS), 11 Oct 2017
https://data.sdss.org/sas/dr14/eboss/lss/
Dataset

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Zhu, F., Padmanabhan, N., Ross, A. J., White, M., Percival, W. J., Ruggeri, R., Zhao, G., Wang, D., Mueller, E.-M., Burtin, E., Gil-Marín, H., Beutler, F., Brinkmann, J., Brownstein, J. R., Dawson, K., de la Macorra, A., Rossi, G., Schneider, D. P., Tojeiro, R., & Wang, Y. (2018). The clustering of the SDSS-IV extended Baryon Oscillation Spectroscopic Survey DR14 quasar sample: measuring the anisotropic Baryon Acoustic Oscillations with redshift weights. Manuscript submitted for publication. https://arxiv.org/abs/1801.03038

@article{1bd0f1d2759f462eac10d46fec316403,

title = "The clustering of the SDSS-IV extended Baryon Oscillation Spectroscopic Survey DR14 quasar sample: measuring the anisotropic Baryon Acoustic Oscillations with redshift weights",

abstract = "We present an anisotropic analysis of Baryon Acoustic Oscillation (BAO) signal from the SDSS-IV extended Baryon Oscillation Spectroscopic Survey (eBOSS) Data Release 14 (DR14) quasar sample. The sample consists of 147,000 quasars distributed over a redshift range of 0.8 < z < 2.2. We apply the redshift weights technique to the clustering of quasars in this sample and achieve a 4.6 per cent measurement of the angular distance measurement DM at z=2.2 and Hubble parameter H at z=0.8. We parameterize the distance-redshift relation, relative to a fiducial model, as a quadratic expansion. The coefficients of this expansion are used to reconstruct the distance-redshift relation and obtain distance and Hubble parameter measurements at all redshifts within the redshift range of the sample. Reporting the result at two characteristic redshifts, we determine DM(z=1)=3405±305 (rd/rd,fid) Mpc, H(z=1)=120.7±7.3 (rd,fid/rd) km s−1Mpc−1 and DM(z=2)=5325±249 (rd/rd,fid) Mpc, H(z=2)=189.9±32.9 (rd,fid/rd) km s−1Mpc−1. These measurements are highly correlated. We assess the outlook of BAO analysis from the final quasar sample by testing the method on a set of mocks that mimic the noise level in the final sample. We demonstrate on these mocks that redshift weighting shrinks the measurement error by over 25 per cent on average. We conclude redshift weighting can bring us closer to the cosmological goal of the final quasar sample.",

keywords = "Cosmology: observations, Dark energy, Distance scale",

author = "Fangzhou Zhu and Nikhil Padmanabhan and Ross, {Ashley J.} and Martin White and Percival, {Will J.} and Rossana Ruggeri and Gong-bo Zhao and Dandan Wang and Eva-Maria Mueller and Etienne Burtin and H{\'e}ctor Gil-Mar{\'i}n and Florian Beutler and Jonathan Brinkmann and Brownstein, {Joel R.} and Kyle Dawson and {de la Macorra}, Axel and Graziano Rossi and Schneider, {Donald P.} and Rita Tojeiro and Yuting Wang",

year = "2018",

month = jan,

day = "10",

language = "English",

journal = "Monthly Notices of the Royal Astronomical Society",

issn = "0035-8711",

publisher = "Oxford University Press",

}

Zhu, F, Padmanabhan, N, Ross, AJ, White, M, Percival, WJ, Ruggeri, R, Zhao, G, Wang, D, Mueller, E-M, Burtin, E, Gil-Marín, H, Beutler, F, Brinkmann, J, Brownstein, JR, Dawson, K, de la Macorra, A, Rossi, G, Schneider, DP, Tojeiro, R & Wang, Y 2018, 'The clustering of the SDSS-IV extended Baryon Oscillation Spectroscopic Survey DR14 quasar sample: measuring the anisotropic Baryon Acoustic Oscillations with redshift weights', Monthly Notices of the Royal Astronomical Society. <https://arxiv.org/abs/1801.03038>

The clustering of the SDSS-IV extended Baryon Oscillation Spectroscopic Survey DR14 quasar sample: measuring the anisotropic Baryon Acoustic Oscillations with redshift weights. / Zhu, Fangzhou; Padmanabhan, Nikhil; Ross, Ashley J. et al.
In: Monthly Notices of the Royal Astronomical Society, 10.01.2018.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - The clustering of the SDSS-IV extended Baryon Oscillation Spectroscopic Survey DR14 quasar sample

T2 - measuring the anisotropic Baryon Acoustic Oscillations with redshift weights

AU - Zhu, Fangzhou

AU - Padmanabhan, Nikhil

AU - Ross, Ashley J.

AU - White, Martin

AU - Percival, Will J.

AU - Ruggeri, Rossana

AU - Zhao, Gong-bo

AU - Wang, Dandan

AU - Mueller, Eva-Maria

AU - Burtin, Etienne

AU - Gil-Marín, Héctor

AU - Beutler, Florian

AU - Brinkmann, Jonathan

AU - Brownstein, Joel R.

AU - Dawson, Kyle

AU - de la Macorra, Axel

AU - Rossi, Graziano

AU - Schneider, Donald P.

AU - Tojeiro, Rita

AU - Wang, Yuting

PY - 2018/1/10

Y1 - 2018/1/10

N2 - We present an anisotropic analysis of Baryon Acoustic Oscillation (BAO) signal from the SDSS-IV extended Baryon Oscillation Spectroscopic Survey (eBOSS) Data Release 14 (DR14) quasar sample. The sample consists of 147,000 quasars distributed over a redshift range of 0.8 < z < 2.2. We apply the redshift weights technique to the clustering of quasars in this sample and achieve a 4.6 per cent measurement of the angular distance measurement DM at z=2.2 and Hubble parameter H at z=0.8. We parameterize the distance-redshift relation, relative to a fiducial model, as a quadratic expansion. The coefficients of this expansion are used to reconstruct the distance-redshift relation and obtain distance and Hubble parameter measurements at all redshifts within the redshift range of the sample. Reporting the result at two characteristic redshifts, we determine DM(z=1)=3405±305 (rd/rd,fid) Mpc, H(z=1)=120.7±7.3 (rd,fid/rd) km s−1Mpc−1 and DM(z=2)=5325±249 (rd/rd,fid) Mpc, H(z=2)=189.9±32.9 (rd,fid/rd) km s−1Mpc−1. These measurements are highly correlated. We assess the outlook of BAO analysis from the final quasar sample by testing the method on a set of mocks that mimic the noise level in the final sample. We demonstrate on these mocks that redshift weighting shrinks the measurement error by over 25 per cent on average. We conclude redshift weighting can bring us closer to the cosmological goal of the final quasar sample.

AB - We present an anisotropic analysis of Baryon Acoustic Oscillation (BAO) signal from the SDSS-IV extended Baryon Oscillation Spectroscopic Survey (eBOSS) Data Release 14 (DR14) quasar sample. The sample consists of 147,000 quasars distributed over a redshift range of 0.8 < z < 2.2. We apply the redshift weights technique to the clustering of quasars in this sample and achieve a 4.6 per cent measurement of the angular distance measurement DM at z=2.2 and Hubble parameter H at z=0.8. We parameterize the distance-redshift relation, relative to a fiducial model, as a quadratic expansion. The coefficients of this expansion are used to reconstruct the distance-redshift relation and obtain distance and Hubble parameter measurements at all redshifts within the redshift range of the sample. Reporting the result at two characteristic redshifts, we determine DM(z=1)=3405±305 (rd/rd,fid) Mpc, H(z=1)=120.7±7.3 (rd,fid/rd) km s−1Mpc−1 and DM(z=2)=5325±249 (rd/rd,fid) Mpc, H(z=2)=189.9±32.9 (rd,fid/rd) km s−1Mpc−1. These measurements are highly correlated. We assess the outlook of BAO analysis from the final quasar sample by testing the method on a set of mocks that mimic the noise level in the final sample. We demonstrate on these mocks that redshift weighting shrinks the measurement error by over 25 per cent on average. We conclude redshift weighting can bring us closer to the cosmological goal of the final quasar sample.

KW - Cosmology: observations

KW - Dark energy

KW - Distance scale

M3 - Article

SN - 0035-8711

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

ER -

The clustering of the SDSS-IV extended Baryon Oscillation Spectroscopic Survey DR14 quasar sample: measuring the anisotropic Baryon Acoustic Oscillations with redshift weights

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The clustering of the SDSS-IV extended Baryon Oscillation Spectroscopic Survey DR14 quasar sample (dataset)

Cite this