Search Results for author: Daisuke Nagai

Found 7 papers, 3 papers with code

SHAPing the Gas: Understanding Gas Shapes in Dark Matter Haloes with Interpretable Machine Learning

no code implementations25 Nov 2020 Luis Fernando Machado Poletti Valle, Camille Avestruz, David J. Barnes, Arya Farahi, Erwin T. Lau, Daisuke Nagai

In this study we explore a machine learning approach for modelling the dependence of gas shapes on dark matter and baryonic properties.

Cosmology and Nongalactic Astrophysics

PoPE: A population-based approach to model spatial structure of astronomical systems

1 code implementation29 Jun 2020 Arya Farahi, Daisuke Nagai, Yang Chen

We present a novel population-based Bayesian inference approach to model the average and population variance of spatial distribution of a set of observables from ensemble analysis of low signal-to-noise ratio measurements.

Cosmology and Nongalactic Astrophysics Astrophysics of Galaxies Instrumentation and Methods for Astrophysics

Using X-Ray Morphological Parameters to Strengthen Galaxy Cluster Mass Estimates via Machine Learning

no code implementations7 Aug 2019 Sheridan B. Green, Michelle Ntampaka, Daisuke Nagai, Lorenzo Lovisari, Klaus Dolag, Dominique Eckert, John A. ZuHone

This procedure is performed for two different mock observation series in an effort to bracket the potential enhancement in mass predictions that can be made possible by including dynamical state information.

Cosmology and Nongalactic Astrophysics

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