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[ascl:2312.028] SAGE: Stellar Activity Grid for Exoplanets

SAGE corrects the time-dependent impact of stellar activity on transmission spectra. It uses a pixelation approach to model the stellar surface with spots and faculae, while accounting for limb-darkening and rotational line-broadening. The code can be used to evaluate stellar contamination for F to M-type hosts, test various spot sizes and locations, and quantify the impact of limb-darkening. SAGE can also retrieve the properties and distribution of active regions on the stellar surface from photometric monitoring, and connect the photometric variability to the stellar contamination of transmission spectra.

Code site:
https://github.com/chakrah/sage
Described in:
https://ui.adsabs.harvard.edu/abs/2023arXiv231116864C
Bibcode:
2023ascl.soft12028C

Views: 447

ascl:2312.028
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