activity
20192025
most citedCosmic web anisotropy is the primary indicator of halo assembly bias

75 citations · 105 across the 7 of their papers we have counts for

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7 papers · 1 filter

astro-ph.CO2025

Halo Lightcones with Optimised Orientation and Interpolation in Cosmological Simulations -- an application to mock H selected galaxies

Sujatha Ramakrishnan, Francisco J. Castander, Elizabeth J. Gonzalez +6

A critical step to create realistic mock catalogs that support large-scale photometric and spectroscopic sky surveys is the production of cosmological simulations that accurately m…

astro-ph.CO2024★ 1 cited

The multi-dimensional halo assembly bias can be preserved when enhancing halo properties with HALOSCOPE

Sujatha Ramakrishnan, Violeta Gonzalez-Perez, Gabriele Parimbelli +1

Over \% of dark matter haloes in cosmological simulations have unresolved properties. This can hinder the dynamical range of simulations and result in systematic biases when mo…

astro-ph.CO2023

An improved Halo Occupation Distribution prescription from UNITsim H_alpha Emission Line Galaxies: conformity and modified radial profile

Guillermo Reyes-Peraza, Santiago Avila, Violeta Gonzalez-Perez +4

Emission line galaxies (ELGs) are targeted by the new generation of spectroscopic surveys to make unprecedented measurements in cosmology from their distribution. Accurately interp…

astro-ph.CO2021★ 3 cited

Properties beyond mass for unresolved haloes across redshift and cosmology using correlations with local halo environment

Sujatha Ramakrishnan, Premvijay Velmani

The structural and dynamic properties of the dark matter halos, though an important ingredient in understanding large-scale structure formation, require more conservative particle…

astro-ph.CO2020★ 12 cited

Mock halo catalogs: assigning unresolved halo properties using correlations with local halo environment

Sujatha Ramakrishnan, Aseem Paranjape, Ravi K. Sheth

Large-scale sky surveys require companion large volume simulated mock catalogs. To ensure precision cosmology studies are unbiased, the correlations in these mocks between galaxy p…

astro-ph.CO2020★ 14 cited

Separate Universe calibration of the dependence of halo bias on cosmic web anisotropy

Sujatha Ramakrishnan, Aseem Paranjape

We use the Separate Universe technique to calibrate the dependence of linear and quadratic halo bias and on the local cosmic web environment of dark matter haloes. We d…