Trident: A Universal Tool for Generating Synthetic Absorption Spectra from Astrophysical Simulations
Abstract
Hydrodynamical simulations are increasingly able to accurately model physical systems on stellar, galactic, and cosmological scales; furthermore, the utility of these simulations is often limited by our ability to directly compare them with the data sets produced by observers: spectra, photometry, etc. To address this problem, we have created trident, a Python-based open-source tool for post-processing hydrodynamical simulations to produce synthetic absorption spectra and related data. trident can (i) create absorption-line spectra for any trajectory through a simulated data set mimicking both background quasar and down-the-barrel configurations; (ii) reproduce the spectral characteristics of common instruments like the Cosmic Origins Spectrograph; (iii) operate across the ultraviolet, optical, and infrared using customizable absorption-line lists; (iv) trace simulated physical structures directly to spectral features; (v) approximate the presence of ion species absent from the simulation outputs; (vi) generate column density maps for any ion; and (vii) provide support for all major astrophysical hydrodynamical codes. trident was originally developed to aid in the interpretation of observations of the circumgalactic medium and intergalactic medium, but it remains a general tool applicable in other contexts.
- Authors:
-
- California Inst. of Technology (CalTech), Pasadena, CA (United States)
- Univ. of California, San Diego, CA (United States)
- Michigan State Univ., East Lansing, MI (United States)
- Publication Date:
- Research Org.:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC); Univ. of California, Oakland, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC)
- OSTI Identifier:
- 1544050
- Grant/Contract Number:
- AC02-05CH11231
- Resource Type:
- Accepted Manuscript
- Journal Name:
- The Astrophysical Journal (Online)
- Additional Journal Information:
- Journal Name: The Astrophysical Journal (Online); Journal Volume: 847; Journal Issue: 1; Journal ID: ISSN 1538-4357
- Publisher:
- Institute of Physics (IOP)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 79 ASTRONOMY AND ASTROPHYSICS; Astronomy & Astrophysics; cosmology: theory; methods: data analysis; methods: numerical; radiative transfer
Citation Formats
Hummels, Cameron B., Smith, Britton D., and Silvia, Devin W. Trident: A Universal Tool for Generating Synthetic Absorption Spectra from Astrophysical Simulations. United States: N. p., 2017.
Web. doi:10.3847/1538-4357/aa7e2d.
Hummels, Cameron B., Smith, Britton D., & Silvia, Devin W. Trident: A Universal Tool for Generating Synthetic Absorption Spectra from Astrophysical Simulations. United States. https://doi.org/10.3847/1538-4357/aa7e2d
Hummels, Cameron B., Smith, Britton D., and Silvia, Devin W. Wed .
"Trident: A Universal Tool for Generating Synthetic Absorption Spectra from Astrophysical Simulations". United States. https://doi.org/10.3847/1538-4357/aa7e2d. https://www.osti.gov/servlets/purl/1544050.
@article{osti_1544050,
title = {Trident: A Universal Tool for Generating Synthetic Absorption Spectra from Astrophysical Simulations},
author = {Hummels, Cameron B. and Smith, Britton D. and Silvia, Devin W.},
abstractNote = {Hydrodynamical simulations are increasingly able to accurately model physical systems on stellar, galactic, and cosmological scales; furthermore, the utility of these simulations is often limited by our ability to directly compare them with the data sets produced by observers: spectra, photometry, etc. To address this problem, we have created trident, a Python-based open-source tool for post-processing hydrodynamical simulations to produce synthetic absorption spectra and related data. trident can (i) create absorption-line spectra for any trajectory through a simulated data set mimicking both background quasar and down-the-barrel configurations; (ii) reproduce the spectral characteristics of common instruments like the Cosmic Origins Spectrograph; (iii) operate across the ultraviolet, optical, and infrared using customizable absorption-line lists; (iv) trace simulated physical structures directly to spectral features; (v) approximate the presence of ion species absent from the simulation outputs; (vi) generate column density maps for any ion; and (vii) provide support for all major astrophysical hydrodynamical codes. trident was originally developed to aid in the interpretation of observations of the circumgalactic medium and intergalactic medium, but it remains a general tool applicable in other contexts.},
doi = {10.3847/1538-4357/aa7e2d},
journal = {The Astrophysical Journal (Online)},
number = 1,
volume = 847,
place = {United States},
year = {Wed Sep 20 00:00:00 EDT 2017},
month = {Wed Sep 20 00:00:00 EDT 2017}
}
Web of Science
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