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• W2765851145 startingPage "2613" @default.
• W2765851145 abstract "We present SPIDERMAN, a fast code for calculating exoplanet phase curves and secondary eclipses with arbitrary surface brightness distributions in two dimensions. Using a geometrical algorithm, the code solves exactly the area of sections of the disc of the planet that are occulted by the star. The code is written in C with a user-friendly Python interface, and is optimised to run quickly, with no loss in numerical precision. Approximately 1000 models can be generated per second in typical use, making Markov Chain Monte Carlo analyses practicable. The modular nature of the code allows easy comparison of the effect of multiple different brightness distributions for the dataset. As a test case we apply the code to archival data on the phase curve of WASP-43b using a physically motivated analytical model for the two dimensional brightness map. The model provides a good fit to the data; however, it overpredicts the temperature of the nightside. We speculate that this could be due to the presence of clouds on the nightside of the planet, or additional reflected light from the dayside. When testing a simple cloud model we find that the best fitting model has a geometric albedo of $0.32 pm0.02$ and does not require a hot nightside. We also test for variation of the map parameters as a function of wavelength and find no statistically significant correlations." @default.
• W2765851145 created "2017-11-10" @default.
• W2765851145 creator A5030303577 @default.
• W2765851145 creator A5088018461 @default.
• W2765851145 date "2018-03-03" @default.
• W2765851145 modified "2023-09-28" @default.
• W2765851145 title "SPIDERMAN: an open-source code to model phase curves and secondary eclipses" @default.
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• W2765851145 doi "https://doi.org/10.1093/mnras/sty558" @default.
• W2765851145 hasPublicationYear "2018" @default.
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