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most citedThe pulsating hot subdwarf Balloon 090100001: results of the 2005 multisite campaign

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astro-ph2003

The cosmic production of Helium

Raul Jimenez, Chris Flynn, James MacDonald +1

We estimate the cosmic production rate of helium relative to metals () using K dwarf stars in the Hipparcos catalog with accurate spectroscopic metallicities. The best fitti…