74 citations · 77 across the 6 of their papers we have counts for
6 papers
Fast(er)PM and Moving Mesh: JAX-native Geometric Multigrid Methods
Benjamin Horowitz
Efficient, differentiable Poisson solvers are a key component of modern particle--mesh simulations and field-level inference pipelines. FFT-based solvers are extremely effective on…
diffhydro: Inverse Multiphysics Modeling and Embedded Machine Learning in Astrophysical Flows
Benjamin Horowitz, Zarija Lukić, Kentaro Nagamine +1
We present the extension of the differentiable hydrodynamics code, diffhydro, enabling scalable PDE-constrained inference and integrated hybrid physics-ML models for a wide range o…
BaryonBridge: Stochastic Interpolant Model for Fast Hydrodynamical Simulations
Benjamin Horowitz, Carolina Cuesta-Lazaro, Omar Yehia
Constructing a general-purpose framework for mapping between dark matter simulations and observable hydrodynamical simulation outputs is a long-standing problem in modern astrophys…
TensorFlow Hydrodynamics Analysis for Ly- Simulations
Jupiter Ding, Benjamin Horowitz, Zarija Lukić
We introduce the Python program THALAS (TensorFlow Hydrodynamics Analysis for Lyman-Alpha Simulations), which maps baryon fields (baryon density, temperature, and velocity) to Ly$α…
Joint Cosmic Density Reconstruction from Photometric and Spectroscopic Samples
Benjamin Horowitz, Peter Melchior
We reconstruct the dark matter density field from spatially overlapping spectroscopic and photometric redshift catalogs through a forward modelling approach. Instead of directly in…
La Silla QUEST RR Lyrae Star Survey: Region I
R. Zinn, B. Horowitz, A. K. Vivas +5
A search for RR Lyrae stars (RRLS) in 840 sq.deg. of the sky in right ascension 150 - 210 deg and declination -10 - +10 deg yielded 1013 type ab and 359 type c RRLS. This sample is…