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تسجيل مستخدم جديدDiscovery of Molecular Hydrogen in White Dwarf Atmospheres
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S. Xu
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With the Cosmic Origins Spectrograph onboard the Hubble Space Telescope, we have detected molecular hydrogen in the atmospheres of three white dwarfs with effective temperatures below 14,000 K, G29-38, GD 133 and GD 31. This discovery provides new independent constraints on the stellar temperature and surface gravity of white dwarfs.
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