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20042011
most citedHot subdwarfs from the ESO Supernova Ia Progenitor Survey: II. Atmospheric parameters of subdwarf O stars

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astro-ph2004

Subluminous O stars from the ESO Supernova Progenitor Survey - Observation versus Theory

A. Stroeer, U. Heber, T. Lisker +2

The ESO Supernova Progenitor Survey (SPY) has identified 58 (mostly helium-rich) subluminous O stars. We use the Balmer line strength to distinguish sdO from He-sdO (no Balmer line…