4 papers · 1 filter
Chemical Abundances in SFG and DLA
Regina E. Schulte-Ladbeck, Brigitte König, Brian Cherinka
We investigate the chemical abundances of local star-forming galaxies which cause Damped Lyman Alpha lines. A metallicity versus redshift diagram is constructed, on which the chemi…
The young, active binary star EK Draconis
B. König, E. W. Guenther, J. Woitas +1
EK Dra (HD 129333) is a young, active, nearby star that is orbited by a low mass companion. By combining new speckle observations with old and new radial velocity measurements we f…
HD 77407 and GJ 577: two new young stellar binaries detected with the Calar Alto Adaptive Optics system ALFA
M. Mugrauer, R. Neuhäuser, E. W. Guenther +9
We present the first results from our search for close stellar and sub-stellar companions to young nearby stars on the northern sky. Our infrared imaging observations are obtained…
A search for nearby young stars among the flare stars
Brigitte König, Ralph Neuhäuser, Valeri Hambaryan
Flare stars were discovered in the late 1940s in the solar vicinity and were named UV Cet-type variables (classical FSs). Among the FSs within 100 pc we search for young stars. For…