no code implementations • 23 Sep 2019 • Michelle Ntampaka, Daniel J. Eisenstein, Sihan Yuan, Lehman H. Garrison
We present a deep machine learning (ML)-based technique for accurately determining $\sigma_8$ and $\Omega_m$ from mock 3D galaxy surveys.
Cosmology and Nongalactic Astrophysics
1 code implementation • 27 Feb 2018 • Sihan Yuan, Daniel J. Eisenstein, Lehman H. Garrison
We identify generalized HOD prescriptions that are nearly degenerate in the projected 2PCF and demonstrate that these degeneracies are broken in the redshift-space anisotropic 2PCF and the squeezed 3PCF.
Cosmology and Nongalactic Astrophysics
no code implementations • 17 Dec 2013 • Yacine Ali-Haïmoud, P. Daniel Meerburg, Sihan Yuan
This relative velocity suppresses the growth of matter fluctuations on scales $k \sim 10-10^3$ Mpc$^{-1}$.
Cosmology and Nongalactic Astrophysics
