no code implementations • 11 Aug 2020 • Abigail Petulante, Andreas A. Berlind, J. Kelly Holley-Bockelmann, Manodeep Sinha
The evolution of a dark matter halo in a dark matter only simulation is governed purely byNewtonian gravity, making a clean testbed to determine what halo properties drive its fate. Using machine learning, we predict the survival, mass loss, final position, and merging time of subhalos within a cosmological N-body simulation, focusing on what instantaneous initial features of the halo, interaction, and environment matter most.
Astrophysics of Galaxies
4 code implementations • 15 Nov 2019 • Manodeep Sinha, Lehman H. Garrison
Corrfunc is an existing open-source, high-performance software package for efficiently computing a multitude of correlation functions.
Instrumentation and Methods for Astrophysics Cosmology and Nongalactic Astrophysics Astrophysics of Galaxies Data Structures and Algorithms
4 code implementations • 8 Nov 2019 • Manodeep Sinha, Lehman H. Garrison
Since the distribution of galaxies is determined by galaxy formation physics as well as the underlying cosmology, fitting an observed correlation function yields valuable insights into both.
Cosmology and Nongalactic Astrophysics Astrophysics of Galaxies Computational Physics
1 code implementation • 25 Jan 2019 • Ellert van der Velden, Alan R. Duffy, Darren Croton, Simon J. Mutch, Manodeep Sinha
However, PRISM can additionally be used as a standalone alternative to MCMC for model analysis, providing insight into the behavior of complex scientific models.
Instrumentation and Methods for Astrophysics Computational Physics
2 code implementations • 13 Jun 2016 • Andrew Hearin, Duncan Campbell, Erik Tollerud, Peter Behroozi, Benedikt Diemer, Nathan J. Goldbaum, Elise Jennings, Alexie Leauthaud, Yao-Yuan Mao, Surhud More, John Parejko, Manodeep Sinha, Brigitta Sipocz, Andrew Zentner
We present the first stable release of Halotools (v0. 2), a community-driven Python package designed to build and test models of the galaxy-halo connection.
Instrumentation and Methods for Astrophysics Cosmology and Nongalactic Astrophysics Astrophysics of Galaxies
