Détail du document
Identifiant
oai:arXiv.org:2410.21190
Sujet
Astrophysics - Earth and Planetary... Astrophysics - Instrumentation and... Astrophysics - Solar and Stellar A...Auteur
Johnson, Ted M Kelahan, Cameron Mandell, Avi M. Dhahbi, Ashraf Hammond, Tobi Barclay, Thomas Kostov, Veselin B. Villanueva, Geronimo L.Catégorie
sciences : astrophysique
Année
2024
Date de référencement
30/10/2024
Mots clés
spectroscopic astrophysicsRésumé
We present the Variable Star PhasE Curve (VSPEC) Collection, a set of Python packages for simulating combined-light spectroscopic observations of 3-dimensional exoplanet atmospheres in the presence of stellar variability and inhomogeneity.
VSPEC uses the Planetary Spectrum Generator's Global Emission Spectra (PSG/GlobES) application along with a custom-built multi-component time-variable stellar model based on a user-defined grid of stellar photosphere models to produce spectroscopic light curves of the planet-host system.
VSPEC can be a useful tool for modeling observations of exoplanets in transiting geometries (primary transit, secondary eclipse) as well as orbital phase curve measurements, and is built in a modular and flexible configuration for easy adaptability to new stellar and planetary model inputs.
We additionally present a set of codes developed alongside the core VSPEC modules, including the stellar surface model generator vspec-vsm, the stellar spectral grid interpolation code GridPolator, and a Python interface for PSG, libpypsg.
;Comment: 18 pages, 11 Figures.
To be published in Astronomy & Computing
Johnson, Ted M,Kelahan, Cameron,Mandell, Avi M.,Dhahbi, Ashraf,Hammond, Tobi,Barclay, Thomas,Kostov, Veselin B.,Villanueva, Geronimo L., 2024, The VSPEC Collection: A suite of utilities to model spectroscopic phase curves of 3D exoplanet atmospheres in the presence of stellar variability
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