2 citations · 4 across the 5 of their papers we have counts for
5 papers
HW Vir's Companion: a M-type Dwarf, or maybe a giant rotating spherical Mirror?
Heinz Edelmann
From optical high-resolution spectra the nature of the unseen companion of HW Vir is determined without detection of any spectral features originating from the secondary itself. Us…
Hypervelocity Stars: Young and Heavy or Old and Light?
Uli Heber, Heiko Hirsch, Heinz Edelmann +4
The first three hyper-velocity stars (HVS) unbound to the Galaxy were serendipitously discovered in 2005. The only suggested origin of hyper-velocity stars is the Galactic Centre a…
Binary sdB Stars with Massive Compact Companions
S. Geier, C. Karl, H. Edelmann +2
The masses of compact objects like white dwarfs, neutron stars and black holes are fundamental to astrophysics, but very difficult to measure. We present the results of an analysis…
Tidal synchronization of the subdwarf B binary PG 0101+039
S. Geier, S. Nesslinger, U. Heber +3
Tidally locked rotation is a frequently applied assumption that helps to measure masses of invisible compact companions in close binaries. The calculations of synchronization times…
Spectroscopic Analysis of subluminous B Stars in Binaries with compact Companions
S. Geier, C. Karl, H. Edelmann +2
The masses of compact objects like white dwarfs, neutron stars and black holes are fundamental to astrophysics, but very difficult to measure. We present the results of an analysis…