138 citations · 255 across the 8 of their papers we have counts for
8 papers
Archives of Photographic PLates for Astronomical USE (APPLAUSE) Digitisation of astronomical plates and their integration into the International Virtual Observatory
Harry Enke, Taavi Tuvikene, Detlef Groote +2
The Archives of Photographic PLates for Astronomical USE (APPLAUSE) project is aimed at digitising astronomical photographic plates from three major German plate collections, makin…
Hamburger Sternwarte plate archives: Historic long-term variability study of active galaxies based on digitized photographic plates
M. Wertz, D. Horns, D. Groote +3
At the Hamburger Sternwarte an effort was started in 2010 with the aim of digitizing its more than 45000 photographic plates and films stored in its plate archives. At the time of…
Multicomponent radiatively driven stellar winds IV. On the helium decoupling in the wind of sigma Ori E
Jiri Krticka, Jiri Kubat, Detlef Groote
We study the possibility of the helium decoupling in the stellar wind of sigma Ori E. To obtain reliable wind parameters for this star we first calculate an NLTE wind model and der…
The Rigidly Rotating Magnetosphere of Sigma Ori E
R. H. D. Townsend, S. P. Owocki, D. Groote
We attempt to characterize the observed variability of the magnetic helium-strong star sigma Ori E in terms of a recently developed rigidly rotating magnetosphere model. This model…
Discovery of X-ray flaring on the magnetic Bp-star sigma Ori E
D. Groote, J. H. M. M. Schmitt
We report the detection of an X-ray flare on the Bp star sigma Ori E with the ROSAT high resolution imager (HRI). The flare is shown to have likely occurred on the early-type star,…
Wind Circulation in Selected Rotating Magnetic Early-B Stars
Myron A. Smith, Detlef Groote
The rotating magnetic B stars have oblique dipolar magnetic fields and often anomalous helium and metallic compositions. These stars develop co-rotating torus-shaped clouds by chan…