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astro-ph2000
The EMSS Radio Loud Quasar Sample
Anna Wolter, Annalisa Celotti
We construct the first X-ray selected sample of radio-loud quasars from the EMSS survey. The X-ray selection allows us to explore the properties of radio-loud quasars 10-100 weaker…
astro-ph2000
Abundances of light elements in metal-poor stars. IV. [Fe/O] and [Fe/Mg] and the history of star formation in the solar neighborhood
Raffaele Gratton, Eugenio Carretta, Francesca Matteucci +1
The accurate O, Mg and Fe abundances derived in previous papers of this series from a homogenous reanalysis of high quality data for a large sample of stars are combined with stell…