eROSITA: Stellar science with a new X-ray All-Sky Survey
Aula GrattonNearly 30 years after ROSAT, the german-russian mission eROSITA, planned for launch in spring 2019,
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colloquium – Beate Stelzer
Aula GrattonCepheid variables in the Gaia Data Release 2 and the extragalactic distance scale
Classical Cepheids are the most important primary indicators for the extragalactic distance scale. Establishing the