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- W2024891964 abstract "We report on the discovery of a new extremely short period transiting extrasolar planet, WASP-19b. The planet has mass Mpl = 1.15 pm 0.08 MJ, radius Rpl = 1.31 pm 0.06 RJ, and orbital period P = 0.7888399 pm 0.0000008 days. Through spectroscopic analysis, we determine the host star to be a slightly super-solar metallicity ([M/H] = 0.1 pm 0.1 dex) G-dwarf with Teff = 5500 pm 100 K. In addition, we detect periodic, sinusoidal flux variations in the light curve which are used to derive a rotation period for the star of Prot = 10.5 pm 0.2 days. The relatively short stellar rotation period suggests that either WASP-19 is somewhat young (~ 600 Myr old) or tidal interactions between the two bodies have caused the planet to spiral inward over its lifetime resulting in the spin-up of the star. Due to the detection of the rotation period, this system has the potential to place strong constraints on the stellar tidal quality factor, Q's, if a more precise age is determined." @default.
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- W2024891964 date "2009-12-09" @default.
- W2024891964 modified "2023-10-17" @default.
- W2024891964 title "WASP-19b: THE SHORTEST PERIOD TRANSITING EXOPLANET YET DISCOVERED" @default.
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- W2024891964 doi "https://doi.org/10.1088/0004-637x/708/1/224" @default.
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