Emulating Power Spectra for Prereconstructed and Postreconstructed Galaxy Samples

Autor: Yuting Wang, Ruiyang Zhao, Zhongxu Zhai, Kazuya Koyama, Will J. Percival, Hong Guo, Yin Li, Gong-Bo Zhao, Takahiro Nishimichi, Héctor Gil-Marín, Yonghao Feng, Hanyu Zhang, Yi Wu

Publikováno v: The Astrophysical Journal, Vol 966, Iss 1, p 35 (2024)

The small-scale linear information in galaxy samples typically lost during nonlinear growth can be restored to a certain level by the density field reconstruction, which has been demonstrated for improving the precision of the baryon acoustic oscilla

Externí odkaz: https://doaj.org/article/f9242ef45625466799480b9b47511587

The Aemulus Project. V. Cosmological Constraint from Small-scale Clustering of BOSS Galaxies

Autor: Zhongxu Zhai, Jeremy L. Tinker, Arka Banerjee, Joseph DeRose, Hong Guo, Yao-Yuan Mao, Sean McLaughlin, Kate Storey-Fisher, Risa H. Wechsler

Publikováno v: The Astrophysical Journal, Vol 948, Iss 2, p 99 (2023)

We analyze clustering measurements of BOSS galaxies using a simulation-based emulator of two-point statistics. We focus on the monopole and quadrupole of the redshift-space correlation function, and the projected correlation function, at scales of 0.

Externí odkaz: https://doaj.org/article/5b2865becfcc4634b1e2cedb3a7243f9

The completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: measurement of the growth rate of structure from the small-scale clustering of the luminous red galaxy sample

Autor: Michael J Chapman, Faizan G Mohammad, Zhongxu Zhai, Will J Percival, Jeremy L Tinker, Julian E Bautista, Joel R Brownstein, Etienne Burtin, Kyle S Dawson, Héctor Gil-Marín, Axel de la Macorra, Ashley J Ross, Graziano Rossi, Donald P Schneider, Gong-Bo Zhao

Publikováno v: Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, 2022, 516 (1), pp.617-635. ⟨10.1093/mnras/stac1923⟩

We measure the small-scale clustering of the Data Release 16 extended Baryon Oscillation Spectroscopic Survey Luminous Red Galaxy sample, corrected for fibre-collisions using Pairwise Inverse Probability weights, which give unbiased clustering measur

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0a41d435d978117d20c34a9b16050313
https://hal.science/hal-03312440

Forecasting cosmological constraints from the weak lensing magnification of type Ia supernovae measured by the Nancy Grace Roman Space Telescope

Autor: Daniel Scolnic, Zhongxu Zhai, Yun Wang

The weak lensing magnification of Type Ia Supernovae (SNe Ia) is sensitive to the clustering of matter, and provides an independent cosmological probe complementary to SN Ia distance measurements. The Nancy Grace Roman Space Telescope is uniquely sen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2548e5a7d043e7038d0bb892ade28bab
https://resolver.caltech.edu/CaltechAUTHORS:20200908-150409494

Clustering in the simulated H alpha galaxy redshift survey from Nancy Grace Roman Space Telescope

Autor: Chia-Hsun Chuang, Gustavo Yepes, Andrew J. Benson, Yun Wang, Zhongxu Zhai

Publikováno v: Biblos-e Archivo. Repositorio Institucional de la UAM
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We present a realistic 2000 deg$^{2}$ H$\alpha$ galaxy mock catalog with $1
Comment: 13 pages, 11 figures, comments welcome

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cffcff7b7be26c4bdfaf79c3e2293334
http://hdl.handle.net/10486/701686