Search Results for author: Jeremy Tinker

Found 6 papers, 5 papers with code

Super-resolving Dark Matter Halos using Generative Deep Learning

1 code implementation11 Nov 2021 David Schaurecker, Yin Li, Jeremy Tinker, Shirley Ho, Alexandre Refregier

Generative deep learning methods built upon Convolutional Neural Networks (CNNs) provide a great tool for predicting non-linear structure in cosmology.

Exploring cosmic homogeneity with the BOSS DR12 galaxy sample

2 code implementations7 Feb 2017 Pierros Ntelis, Jean-Christophe Hamilton, Jean-Marc Le Goff, Nicolas Guillermo Busca, Eric Aubourg, Pierre Laurent, James Rich, Etienne Burtin, Hélion du Mas des Bourboux, Nathalie Palanque Delabrouille, Christophe Yeche, David W. Hogg, Adam Myers, Jeremy Tinker, Julian Bautista, Timothée Delubac, Graziano Rossi, Donald P. Schneider Rita Toheiro, Mariana Vargas-Magaña

Defining the scale of transition to homogeneity as the scale at which $\mathcal{D}_2(r)$ reaches 3 within $1\%$, i. e. $\mathcal{D}_2(r)>2. 97$ for $r>\mathcal{R}_H$, we find $\mathcal{R}_H = (63. 3\pm0. 7) \ h^{-1}\ \mathrm{Mpc}$, in agreement at the percentage level with the predictions of the $\Lambda$CDM model $\mathcal{R}_H=62. 0\ h^{-1}\ \mathrm{Mpc}$.

Cosmology and Nongalactic Astrophysics

The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: tomographic BAO analysis of DR12 combined sample in configuration space

2 code implementations11 Jul 2016 Yuting Wang, Gong-Bo Zhao, Chia-Hsun Chuang, Ashley J. Ross, Will J. Percival, Héctor Gil-Marín, Antonio J. Cuesta, Francisco-Shu Kitaura, Sergio Rodriguez-Torres, Joel R. Brownstein, Daniel J. Eisenstein, Shirley Ho, Jean-Paul Kneib, Matt Olmstead, Francisco Prada, Graziano Rossi, Ariel G. Sánchez, Salvador Salazar-Albornoz, Daniel Thomas, Jeremy Tinker, Rita Tojeiro, Mariana Vargas-Magaña, Fangzhou Zhu

Splitting the sample into multiple overlapping redshift slices to extract the redshift information of galaxy clustering, we obtain a measurement of $D_A(z)/r_d$ and $H(z)r_d$ at nine effective redshifts with the full covariance matrix calibrated using MultiDark-Patchy mock catalogues.

Cosmology and Nongalactic Astrophysics

The Clustering of Galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: Measuring H(z) and D_A(z) at z = 0.57 with Clustering Wedges

2 code implementations18 Mar 2013 Eyal A. Kazin, Ariel G. Sanchez, Antonio J. Cuesta, Florian Beutler, Chia-Hsun Chuang, Daniel J. Eisenstein, Marc Manera, Nikhil Padmanabhan, Will J. Percival, Francisco Prada, Ashley J. Ross, Hee-Jong Seo, Jeremy Tinker, Rita Tojeiro, Xiaoying Xu, J. Brinkmann, Brownstein Joel, Robert C. Nichol, David J. Schlegel, Donald P. Schneider, Daniel Thomas

The baryonic acoustic feature is used to obtain model independent constraints cz/H/r_s = 12. 28 +- 0. 82 (6. 7 per-cent accuracy) and D_A/r_s = 9. 05 +- 0. 27 (3. 0 per-cent) with a correlation coefficient of -0. 5, where r_s is the sound horizon scale at the end of the baryonic drag era.

Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology

Are Halo and Galaxy Formation Histories Correlated?

1 code implementation25 Jul 2011 Jeremy Tinker, Andrew Wetzel, Charlie Conroy

Using the 4000-A break as a measure of star formation history, we examine the correlation between the quenched fraction of galaxies, f_q, and large-scale environment, rho.

Cosmology and Nongalactic Astrophysics

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