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- W1969131300 abstract "For more than a decade, 18 Sco (HD 146233) has been considered the star that most closely resembles the Sun, even though significant differences such as its Li content, which is about 3 times solar, exist. Using high-resolution, high-S/N spectra obtained at McDonald Observatory, we show that the stars HIP 56948 and HIP 73815 are very similar to the Sun in both stellar parameters and chemical composition, including a low Li abundance, which was previously thought to be peculiar in the Sun. HIP 56948, in particular, has stellar parameters identical to solar within the observational uncertainties, being thus the best solar twin known to date. HIP 56948 is also similar to the Sun in its lack of hot Jupiters. Considering the age of this star (~1 ± 1 Gyr older than the Sun) and its location and orbit around the Galaxy, if terrestrial planets exist around it, they may have had enough time to develop complex life, making it a prime target for SETI." @default.
- W1969131300 created "2016-06-24" @default.
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- W1969131300 date "2007-10-08" @default.
- W1969131300 modified "2023-09-23" @default.
- W1969131300 title "HIP 56948: A Solar Twin with a Low Lithium Abundance" @default.
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- W1969131300 doi "https://doi.org/10.1086/523942" @default.
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