Journal
ASTROPHYSICAL JOURNAL
Volume 847, Issue 1, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.3847/1538-4357/aa7e2d
Keywords
cosmology: theory; methods: data analysis; methods: numerical; radiative transfer
Categories
Funding
- NASA [HST-AR-13917, HST-AR-13919, HST-AR-13261.01-A, HST-AR-14315.001-A, NAS 5-26555]
- NSF through AST [0908819, 1615848]
- NSF
- NSF XSEDE [TG-AST140018]
- NSF BlueWaters grant PRAC-gka
- Office of Science of the U.S. Department of Energy [DE-AC02-05CH11231]
- ATP [NNX09AD80G, NNX12AC98G]
- NSF BlueWaters grant GLCPC_jth
- Direct For Computer & Info Scie & Enginr
- Office of Advanced Cyberinfrastructure (OAC) [1514580] Funding Source: National Science Foundation
- Direct For Mathematical & Physical Scien
- Division Of Astronomical Sciences [1402163] Funding Source: National Science Foundation
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Hydrodynamical simulations are increasingly able to accurately model physical systems on stellar, galactic, and cosmological scales; however, 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.
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