Search Results for author: Benjamin D. Johnson

Found 2 papers, 1 papers with code

Date Published Github Stars

A Diffuse Metal-Poor Component of the Sagittarius Stream Revealed by the H3 Survey

no code implementations • 28 Jul 2020 • Benjamin D. Johnson, Charlie Conroy, Rohan P. Naidu, Ana Bonaca, Dennis Zaritsky, Yuan-Sen Ting, Phillip A. Cargile, Jiwon Jesse Han, Joshua S. Speagle

We speculate that this kinematically diffuse, low metallicity, population is the stellar halo of the Sagittarius progenitor system.

Astrophysics of Galaxies

 
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SPECULATOR: Emulating stellar population synthesis for fast and accurate galaxy spectra and photometry

1 code implementation • 26 Nov 2019 • Justin Alsing, Hiranya Peiris, Joel Leja, ChangHoon Hahn, Rita Tojeiro, Daniel Mortlock, Boris Leistedt, Benjamin D. Johnson, Charlie Conroy

We present \textsc{speculator} -- a fast, accurate, and flexible framework for emulating stellar population synthesis (SPS) models for predicting galaxy spectra and photometry.

Instrumentation and Methods for Astrophysics Astrophysics of Galaxies

15
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