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Paper: A Method for Spectral Studies of Albedos of Hot Jupiter Planets
Volume: 494, Physics and Evolution of Magnetic and Related Stars
Page: 289
Authors: Grauzhanina, A.; Valyavin, G.; Gadelshin, D.; Zhuchkov, R.; Galazutdinov, G.; Burlakova, T.; Mkrtichian, D.
Abstract: We present a method and a corresponding observational strategy for spectral studies of albedos of giant, Jupiter-sized exoplanets orbiting close to their parent stars (the so-called “hot Jupiter” exoplanets). The method makes it possible to study integral, “visible” colors of the planets, monitor their orbital motion and variability of their phases (analogous to those of the Moon). Orbital parameters and some other important new data about exoplanets can also be obtained within the framework of this strategy. In order to demonstrate the applicability of the method, we model a sun-like spectrum of a parent star containing a weak reflected spectrum from an orbiting typical hot Jupiter planet located at a distance equal to 10 radii of the parent star. Applying our method, we show that the reflected spectrum can be detected in real high/moderate resolution spectral observations. The required quality (signal-to-noise ratio) of the spectral data is S/N=3000 per resolution element and higher. Such observations are possible for bright stars with the stellar magnitudes less than 9m at large telescopes with the apertures greater than 4 meters.
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