Search Results for author:
Found 6 papers, 5 papers with code
Local primordial non-Gaussianity from the large-scale clustering of photometric DESI luminous red galaxies
We use angular clustering of luminous red galaxies from the Dark Energy Spectroscopic Instrument (DESI) imaging surveys to constrain the local primordial non-Gaussianity parameter fNL.
GEOMAX: beyond linear compression for 3pt galaxy clustering statistics
By applying GEOMAX to bispectrum monopole measurements from BOSS DR12 CMASS redshift-space galaxy clustering data, we reduce the $68\%$ credible intervals for the inferred parameters $\left(b_1, b_2, f,\sigma_8\right)$ by $\left(50. 4\%, 56. 1\%, 33. 2\%, 38. 3\%\right)$ with respect to standard MCMC on the full data vector.
Cosmology and Nongalactic Astrophysics
Geometrical compression: a new method to enhance the BOSS galaxy bispectrum monopole constraints
We present a novel method to compress galaxy clustering three-point statistics and apply it to redshift space galaxy bispectrum monopole measurements from BOSS DR12 CMASS data considering a $k$-space range of $0. 03-0. 12\, h/\mathrm{Mpc}$.
Cosmology and Nongalactic Astrophysics
COLA with scale-dependent growth: applications to screened modified gravity models
We present a general parallelized and easy-to-use code to perform numerical simulations of structure formation using the COLA (COmoving Lagrangian Acceleration) method for cosmological models that exhibit scale-dependent growth at the level of first and second order Lagrangian perturbation theory.
Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology
The Clustering of the SDSS DR7 Main Galaxy Sample I: A 4 per cent Distance Measure at z=0.15
We create a sample of spectroscopically identified galaxies with $z < 0. 2$ from the Sloan Digital Sky Survey (SDSS) Data Release 7, covering 6813 deg$^2$.
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
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
