Abstract
We present the easy-to-use, publicly available, Python package petitRADTRANS, built for the spectral characterization of exoplanet atmospheres. The code is fast, accurate, and versatile; it can calculate both transmission and emission spectra within a few seconds at low resolution ( λ /Δ λ = 1000; correlated-k method) and high resolution ( λ /Δ λ = 10 6 ; line-by-line method), using only a few lines of input instruction. The somewhat slower, correlated-k method is used at low resolution because it is more accurate than methods such as opacity sampling. Clouds can be included and treated using wavelength-dependent power law opacities, or by using optical constants of real condensates, specifying either the…
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Authors
6Topics & keywords
Topics
Keywords
- Opacity
- Hot Jupiter
- Exoplanet
- Planet
- Radiative transfer
- Physics
- Spectral line
- Computational physics
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