Determining the Structure of the Atmosphere Exoplanet HD 189733b Based on Multicolor Photometric Transit Observations

In this paper, we analyze and interpret light curves obtained by observing with the HST telescope the transit of exoplanet HD 189733b across the disk of the star. Observations are carried out in a wide wavelength range of 5500–10 500 Å, which makes it possible to identify the relation between the wa...

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Bibliographic Details
Published in:Astronomy reports 2024-08, Vol.68 (8), p.790-801
Main Author: Bekesov, E. V.
Format: Article
Language:English
Subjects:
Astronomy
Atmosphere
Extrasolar planets
Light curve
Observations and Techniques
Parameter estimation
Parameter identification
Physics
Physics and Astronomy
Transit
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Summary:In this paper, we analyze and interpret light curves obtained by observing with the HST telescope the transit of exoplanet HD 189733b across the disk of the star. Observations are carried out in a wide wavelength range of 5500–10 500 Å, which makes it possible to identify the relation between the wavelength and the data obtained during the interpretation of the radius of the planet. It is also shown that this dependence can be explained by the presence of a Rayleigh atmosphere on the planet while the possible parameters of this atmosphere are also approximately estimated.
ISSN:1063-7729
1562-6881
DOI:10.1134/S1063772924700689